Ablabesmyia amamisimplex
 - Ablabesmyia amamisimplex Sasa, 1991 [ACCEPTED SPECIES 9817:8KWT nidx=null]
 + Ablabesmyia amamisimplex Sasa, 1990 [ACCEPTED SPECIES 9820:8YQX5 nidx=null]
Acanthocnema latipennis
 - Acanthocnema latipennis Becker, 1894 [ACCEPTED SPECIES 9817:87LQW nidx=null]
 + Acanthocnema latipennis Becker, 1894 [SYNONYM SPECIES 9820:8V2Z nidx=null parent=8V2X]
Acanthosentis
 - Acanthosentis Verma & Datta, 1929 [ACCEPTED SUBGENUS 9817:8VWS5 nidx=null]
 + Acanthosentis Verma & Datta, 1929 [ACCEPTED SUBGENUS 9820:7NMN5 nidx=null]
Achelia spicata
 - Achelia spicata (Hodgson, 1915) [ACCEPTED SPECIES 9817:96LT nidx=null]
 + Achelia spicata (Hodgson, 1914) [ACCEPTED SPECIES 9820:8YT5Z nidx=null]
Achorutes macgillivrayi
 - Achorutes macgillivrayi Folsom, JW, 1916: 488 nec Dalla Torre, 1895 [SYNONYM SPECIES 9817:98HD nidx=null parent=3NVY9]
 + Achorutes macgillivrayi Denis, J-R, 1933 [SYNONYM SPECIES 9820:8YSP3 nidx=null parent=5BMMV]
Achorutes nivicola
 - Achorutes nivicola Kloet, GS & Hincks, WD, 1945 [AMBIGUOUS_SYNONYM SPECIES 9817:64H9G nidx=null parent=3NVXV]
 + Achorutes nivicola Harvey, 1893 [SYNONYM SPECIES 9820:8YSP5 nidx=null parent=3NVXV]
 + Achorutes nivicola Bertkau, P, 1894 [SYNONYM SPECIES 9820:8YSP6 nidx=null parent=3NVXV]
Achorutes purpurascens
 - Achorutes purpurascens Kloet, GS & Hincks, WD, 1945 [AMBIGUOUS_SYNONYM SPECIES 9817:98J7 nidx=null parent=3NVYK]
 - Achorutes purpurascens Reuter, OM, 1876 [AMBIGUOUS_SYNONYM SPECIES 9817:98J8 nidx=null parent=3NVYK]
 - Achorutes purpurascens Womersley, 1928 [AMBIGUOUS_SYNONYM SPECIES 9817:98J9 nidx=null parent=3NVX7]
 + Achorutes purpurascens Tullberg, 1872 [AMBIGUOUS_SYNONYM SPECIES 9820:8Z3QJ nidx=null parent=3NVYK]
 + Achorutes purpurascens Parona, 1895 [AMBIGUOUS_SYNONYM SPECIES 9820:8Z3QK nidx=null parent=4MRJR]
 + Achorutes purpurascens Schäffer, 1897 [AMBIGUOUS_SYNONYM SPECIES 9820:8Z3QL nidx=null parent=3NVYK]
 + Achorutes purpurascens Folsom, JW, 1899 [AMBIGUOUS_SYNONYM SPECIES 9820:8Z3QM nidx=null parent=3NVYK]
 + Achorutes purpurascens Lubbock, J, 1870 [AMBIGUOUS_SYNONYM SPECIES 9820:8Z3QN nidx=null parent=3NVYK]
 + Achorutes purpurascens Absolon, K, 1901 [AMBIGUOUS_SYNONYM SPECIES 9820:8Z3QP nidx=null parent=3NVYK]
Achorutes purpurescens
 - Achorutes purpurescens Stach, J, 1949: 100 nec Lubbock, 1867 [SYNONYM SPECIES 9817:98JC nidx=null parent=3NVX7]
 + Achorutes purpurescens Mari Mutt, JA & Bellinger, PF, 1990 [SYNONYM SPECIES 9820:8Z3QQ nidx=null parent=4MRJR]
Aconitum nasutum pubiceps
 - Aconitum nasutum pubiceps Rupr. [SYNONYM INFRASPECIFIC_NAME 9817:7GJQ3 nidx=null parent=9GMJ]
 + Aconitum nasutum pubiceps Rupr. [SYNONYM INFRASPECIFIC_NAME 9820:8Z5Z3 nidx=null parent=9GMJ]
Acrocera prima
 - Acrocera prima Meijere, 1913 [ACCEPTED SPECIES 9817:64LW5 nidx=null]
 + Acrocera prima Meijere, 1914 [SYNONYM SPECIES 9820:8YQXN nidx=null parent=89TXN]
Actaea philippinensis
 - Actaea philippinensis Ward, 1942 [SYNONYM SPECIES 9817:64P74 nidx=null parent=4CRPZ]
 + Actaea philippinensis Ward, 1941 [SYNONYM SPECIES 9820:8YST3 nidx=null parent=4CRPZ]
Actaea polyacantha
 - Actaea polyacantha (Heller, 1861) [ACCEPTED SPECIES 9817:9S4M nidx=null]
 + Actaea polyacantha (Heller, 1860) [ACCEPTED SPECIES 9820:8YST4 nidx=null]
Actilasioptera coronata
 - Actilasioptera coronata Gagné, 1998 [ACCEPTED SPECIES 9817:64NXW nidx=null]
 + Actilasioptera coronata Gagné, 1999 [ACCEPTED SPECIES 9820:8YQXR nidx=null]
Actina dulongjiangana
 - Actina dulongjiangana Li, Cui & Yang, 2011 [ACCEPTED SPECIES 9817:89V44 nidx=null]
 + Actina dulongjiangana Li, Cui & Yang, 2009 [ACCEPTED SPECIES 9820:8YQXS nidx=null]
Actinorhabdos trichocystifera
 - Actinorhabdos trichocystifera Foissner, 1984 [ACCEPTED SPECIES 9817:64PMX nidx=null]
 + Actinorhabdos trichocystifera Foissner, 1984 [ACCEPTED SPECIES 9820:8YSTN nidx=null]
Actumnus elegans
 - Actumnus elegans de Man, 1887 [in de Man, 1887-1888] [ACCEPTED SPECIES 9817:9V8N nidx=null]
 + Actumnus elegans de Man, 1887 [ACCEPTED SPECIES 9820:8YSTW nidx=null]
Aedes (Aedes) cinereus
 - Aedes (Aedes) cinereus Meigen, 1818 [ACCEPTED SPECIES 9817:89V93 nidx=null]
 + Aedes (Aedes) cinereus Wiedemann, 1818 [ACCEPTED SPECIES 9820:8YQYD nidx=null]
Aedes cinereus
 - Aedes cinereus Meigen, 1818 [SYNONYM SPECIES 9817:87M3C nidx=null parent=89V93]
 + Aedes cinereus Wiedemann, 1818 [SYNONYM SPECIES 9820:8YQYC nidx=null parent=8YQYD]
Aedes fengi
 - Aedes fengi Lien, 1968 [ACCEPTED SPECIES 9817:87MVX nidx=null]
 + Aedes fengi Edwards, 1935 [SYNONYM SPECIES 9820:64VXY nidx=null parent=89VQD]
Afrodontella
 - Afrodontella Deharveng, 1991 [ACCEPTED GENUS 9817:Q6X nidx=null]
 + Afrodontella Deharveng, 1981 [ACCEPTED GENUS 9820:8Z38Z nidx=null]
Agromyza drepanura
 - Agromyza drepanura Hering, 1930 [ACCEPTED SPECIES 9817:B8GW nidx=null]
 + Agromyza drepanura Mamonov, 1929 [PROVISIONALLY_ACCEPTED SPECIES 9820:8YQZY nidx=null]
 + Agromyza drepanura (Mamonov, 1929) [PROVISIONALLY_ACCEPTED SPECIES 9820:8YQZZ nidx=null]
Agromyza graminivora
 - Agromyza graminivora Spencer [ACCEPTED SPECIES 9817:87NTR nidx=null]
 + Agromyza graminivora Spencer, 1960 [SYNONYM SPECIES 9820:B8JF nidx=null parent=B8NG]
Agromyza pagana
 - Agromyza pagana Spencer, 1986 [ACCEPTED SPECIES 9817:B8N2 nidx=null]
 + Agromyza pagana Malloch, 1934 [SYNONYM SPECIES 9820:8YR26 nidx=null parent=3VCS7]
Alella canthari
 - Alella canthari (Heller, 1865) [ACCEPTED SPECIES 9817:7QTKL nidx=null]
 + Alella canthari (Heller, 1865) [SYNONYM SPECIES 9820:BMNK nidx=null parent=BMNP]
Alella macrotrachelus
 - Alella macrotrachelus (Brian, 1906) [ACCEPTED SPECIES 9817:7QTKM nidx=null]
 + Alella macrotrachelus (Brian, 1906) [SYNONYM SPECIES 9820:BMNN nidx=null parent=BMNP]
Alepes djedaba
 - Alepes djedaba (Forsskål, 1775) [ACCEPTED SPECIES 9817:BNXS nidx=null]
 + Alepes djedaba (Forsskål, 1775) [ACCEPTED SPECIES 9820:8YT82 nidx=null]
Allantonematidae
 - Allantonematidae [ACCEPTED FAMILY 9817:678 nidx=null]
 + Allantonematidae Pereira, 1931 [ACCEPTED FAMILY 9820:8YPYQ nidx=null]
Alliopsis problella
 - Alliopsis problella Fan & Wu, 1983 [SYNONYM SPECIES 9817:87P9S nidx=null parent=89X2H]
 + Alliopsis problella Fan & Wu, 1983 [ACCEPTED SPECIES 9820:BTVP nidx=null]
Allodia ruficauda
 - Allodia ruficauda (Wulp, 1874) [ACCEPTED SPECIES 9817:BW8Q nidx=null]
 + Allodia ruficauda (Wulp, 1875) [ACCEPTED SPECIES 9820:8YR2C nidx=null]
Allominettia maculifrons
 - Allominettia maculifrons Hendel, 1926 [ACCEPTED SPECIES 9817:89XF6 nidx=null]
 + Allominettia maculifrons Hendel, 1925 [SYNONYM SPECIES 9820:8YR2F nidx=null parent=89XF8]
Allomyrina pfeifferi
 - Allomyrina pfeifferi (Redtenbacher, 1867) [ACCEPTED SPECIES 9817:BXKL nidx=null]
 + Allomyrina pfeifferi (Redtenbacher, 1868) [ACCEPTED SPECIES 9820:8YT8B nidx=null]
Allomyrina pfeifferi pfeifferi
 - Allomyrina pfeifferi pfeifferi Redtenbacher, 1867 [ACCEPTED SUBSPECIES 9817:7Z9ZW nidx=null]
 + Allomyrina pfeifferi pfeifferi Redtenbacher, 1868 [ACCEPTED SUBSPECIES 9820:8YXCG nidx=null]
Allophyla
 - Allophyla [ACCEPTED SUBGENUS 9817:87D75 nidx=null]
 + Allophyla [ACCEPTED GENUS 9820:8YQQF nidx=null]
Alloscopus tenuicornis
 - Alloscopus tenuicornis Stach, J, 1924 [AMBIGUOUS_SYNONYM SPECIES 9817:BZ8V nidx=null parent=BZ8W]
 - Alloscopus tenuicornis Handschin, 1925 [AMBIGUOUS_SYNONYM SPECIES 9817:65WRW nidx=null parent=BZ8Q]
 + Alloscopus tenuicornis Yoshii, R & Suhardjno, YR, 1992 [AMBIGUOUS_SYNONYM SPECIES 9820:8Z3VS nidx=null parent=BZ94]
Amerigloboppia
 - Amerigloboppia Subías, 1989 [ACCEPTED SUBGENUS 9817:8W5DK nidx=null]
 + Amerigloboppia Subías, 1989 [ACCEPTED SUBGENUS 9820:7Q758 nidx=null]
Ammothea meridionalis
 - Ammothea meridionalis Hodgson, 1915 [ACCEPTED SPECIES 9817:CVK5 nidx=null]
 + Ammothea meridionalis Hodgson, 1914 [ACCEPTED SPECIES 9820:8YTB9 nidx=null]
Amphidromus pervariabilis
 - Amphidromus pervariabilis Bavay & Dautzenberg, 1909 [ACCEPTED SPECIES 9817:7Q2H2 nidx=null]
 + Amphidromus pervariabilis Bavay & Dautzenberg, 1909 [SYNONYM SPECIES 9820:D2N4 nidx=null parent=8ZGF3]
Amphipholis elegans
 - Amphipholis elegans (Farquhar, 1897) [SYNONYM SPECIES 9817:D4TQ nidx=null parent=D4V7]
 + Amphipholis elegans (Leach, 1815) [SYNONYM SPECIES 9820:8YPXX nidx=null parent=D4V7]
Amphiura (Amphiura) acrystata
 - Amphiura (Amphiura) acrystata H.L. Clark, 1911 [SYNONYM SPECIES 9817:D6H7 nidx=null parent=D6LW]
 + Amphiura (Amphiura) acrystata [SYNONYM SPECIES 9820:8ZDNM nidx=null parent=D6LW]
Amphiura (Fellaria) economiotata
 - Amphiura (Fellaria) economiotata H.L. Clark, 1911 [SYNONYM SPECIES 9817:D6KK nidx=null parent=D6KJ]
 + Amphiura (Fellaria) economiotata [SYNONYM SPECIES 9820:8ZDNT nidx=null parent=D6KJ]
Amphiura acrystata
 - Amphiura acrystata H.L. Clark, 1911 [SYNONYM SPECIES 9817:D6LB nidx=null parent=D6LW]
 + Amphiura acrystata [SYNONYM SPECIES 9820:8YPY9 nidx=null parent=D6LW]
Amphiura acutisquama
 - Amphiura acutisquama A.M. Clark, 1952 [SYNONYM SPECIES 9817:D6LC nidx=null parent=D6H8]
 + Amphiura acutisquama A.M. Clark, 1951 [SYNONYM SPECIES 9820:8YPYB nidx=null parent=D6H8]
Ancylonycha columbiana
 - Ancylonycha columbiana Blanchard, 1851 [SYNONYM SPECIES 9817:DP35 nidx=null parent=4H8ZR]
 + Ancylonycha columbiana Blanchard, 1850 [SYNONYM SPECIES 9820:8YX33 nidx=null parent=8YX7C]
Ancylonycha micans
 - Ancylonycha micans Blanchard, 1851 [SYNONYM SPECIES 9817:DP4C nidx=null parent=77FVV]
 + Ancylonycha micans Blanchard, 1850 [SYNONYM SPECIES 9820:8YX34 nidx=null parent=77FVV]
Ancylonycha nigra
 - Ancylonycha nigra Redtenbacher, 1867 [SYNONYM SPECIES 9817:DP4F nidx=null parent=6YTZB]
 + Ancylonycha nigra Redtenbacher, 1868 [SYNONYM SPECIES 9820:8YX35 nidx=null parent=6YTZB]
Ancylonycha profunda
 - Ancylonycha profunda Blanchard, 1851 [SYNONYM SPECIES 9817:66NNC nidx=null parent=6VFW7]
 + Ancylonycha profunda Blanchard, 1850 [SYNONYM SPECIES 9820:8YX36 nidx=null parent=8YX7D]
Ancylonycha sculpticollis
 - Ancylonycha sculpticollis Blanchard, 1851 [SYNONYM SPECIES 9817:DP5F nidx=null parent=3MBFB]
 + Ancylonycha sculpticollis Blanchard, 1850 [SYNONYM SPECIES 9820:8YX37 nidx=null parent=8YX5B]
Ancylonycha uniformis
 - Ancylonycha uniformis Blanchard, 1851 [SYNONYM SPECIES 9817:DP5Y nidx=null parent=6VFWL]
 + Ancylonycha uniformis Blanchard, 1850 [SYNONYM SPECIES 9820:8YX3D nidx=null parent=8YX7F]
Andamanus manii
 - Andamanus manii Maheshwari & Maheshwari, 2001 [ACCEPTED SPECIES 9817:DPWJ nidx=null]
 + Andamanus manii Maheshwari & Maheshwari, 2002 [SYNONYM SPECIES 9820:8YR3D nidx=null parent=8ZSYB]
Anderseniveloides
 - Anderseniveloides Zettel, 2006 [ACCEPTED SUBGENUS 9817:8W5CQ nidx=null]
 + Anderseniveloides Zettel, 2006 [ACCEPTED SUBGENUS 9820:7Q75K nidx=null]
Anomala aeneipennis
 - Anomala aeneipennis Blanchard, 1851 [SYNONYM SPECIES 9817:7RD5N nidx=null parent=7ZSKB]
 + Anomala aeneipennis Blanchard, 1850 [SYNONYM SPECIES 9820:8YX3F nidx=null parent=7ZSKB]
Anomala anoguttata dichropus
 - Anomala anoguttata dichropus (Blanchard, 1851) [ACCEPTED SUBSPECIES 9817:5FMSJ nidx=null]
 + Anomala anoguttata dichropus (Blanchard, 1850) [ACCEPTED SUBSPECIES 9820:8YXCH nidx=null]
Anomala obsoleta
 - Anomala obsoleta (Blanchard, 1851) [ACCEPTED SPECIES 9817:5V6WB nidx=null]
 + Anomala obsoleta (Blanchard, 1850) [ACCEPTED SPECIES 9820:8YTKS nidx=null]
Anomala xanthoptera
 - Anomala xanthoptera (Blanchard, 1851) [ACCEPTED SPECIES 9817:676RP nidx=null]
 + Anomala xanthoptera (Blanchard, 1850) [ACCEPTED SPECIES 9820:8YTKV nidx=null]
Anopheles (Nyssorhynchus) striatus
 - Anopheles (Nyssorhynchus) striatus Sant'Ana & Sallum, 2016 [ACCEPTED SPECIES 9817:89ZKD nidx=null]
 + Anopheles (Nyssorhynchus) striatus Sant'Ana & Sallum, 2017 [ACCEPTED SPECIES 9820:8YR43 nidx=null]
Anopheles gracilis
 - Anopheles gracilis Theobald [ACCEPTED SPECIES 9817:87RX5 nidx=null]
 + Anopheles gracilis Dönitz, 1902 [SYNONYM SPECIES 9820:6786Z nidx=null parent=89ZBF]
Anopheles striatus
 - Anopheles striatus Sant'Ana & Sallum, 2016 [SYNONYM SPECIES 9817:8GNZB nidx=null parent=89ZKD]
 + Anopheles striatus Sant'Ana & Sallum, 2017 [ACCEPTED SPECIES 9820:8YR44 nidx=null]
Anoplognathitae
 - Anoplognathitae Blanchard, 1851 [SYNONYM GENUS 9817:WZ3 nidx=null parent=KLD]
 + Anoplognathitae Blanchard, 1850 [SYNONYM GENUS 9820:8YX2C nidx=null parent=KLD]
Anoxycampta hirta
 - Anoxycampta hirta Bigot, 1881 [SYNONYM SPECIES 9817:89ZLL nidx=null parent=4GWZ5]
 + Anoxycampta hirta Bigot, 1880 [SYNONYM SPECIES 9820:8YR4C nidx=null parent=8YVL2]
Anthomyia
 - Anthomyia [ACCEPTED SUBGENUS 9817:8V466 nidx=null]
 - Anthomyia [ACCEPTED SUBGENUS 9817:8VSZ5 nidx=null]
 + Anthomyia [PROVISIONALLY_ACCEPTED GENUS 9820:8YQB6 nidx=null]
Anthomyia abiscoensis
 - Anthomyia abiscoensis (Ringdahl, 1937) [ACCEPTED SPECIES 9817:5VDWN nidx=null]
 + Anthomyia abiscoensis Dely-Draskovits, 1993 [SYNONYM SPECIES 9820:8YR4G nidx=null parent=8ZPQJ]
Anthomyia albimargo
 - Anthomyia albimargo Pandellé, 1901 [SYNONYM SPECIES 9817:87P5N nidx=null parent=8D83G]
 + Anthomyia albimargo Pandellé, 1901 [SYNONYM SPECIES 9820:67DX4 nidx=null parent=75Y8T]
Anthomyia aurifacies
 - Anthomyia aurifacies Albququerque [ACCEPTED SPECIES 9817:5VDVY nidx=null]
 + Anthomyia aurifacies (Albuquerque, 1952) [ACCEPTED SPECIES 9820:8YR4L nidx=null]
Anthomyia brasiliensis
 - Anthomyia brasiliensis Albququerque [ACCEPTED SPECIES 9817:5VDWC nidx=null]
 + Anthomyia brasiliensis Walker, 1853 [AMBIGUOUS_SYNONYM SPECIES 9820:8YR4N nidx=null parent=46FX3]
 + Anthomyia brasiliensis (Albuquerque, 1949) [ACCEPTED SPECIES 9820:8YR4P nidx=null]
Anthomyia crassinervis
 - Anthomyia crassinervis Albququerque [ACCEPTED SPECIES 9817:67DX8 nidx=null]
 + Anthomyia crassinervis (Albuquerque, 1959) [ACCEPTED SPECIES 9820:8YR4S nidx=null]
Anthomyia dentiens
 - Anthomyia dentiens Pandellé, 1900 [SYNONYM SPECIES 9817:87P6B nidx=null parent=8D85Q]
 + Anthomyia dentiens Pandellé, 1900 [SYNONYM SPECIES 9820:67DX9 nidx=null parent=75XYK]
Anthomyia determinata
 - Anthomyia determinata Walker, 1849 [SYNONYM SPECIES 9817:87P6D nidx=null parent=8BYR6]
 + Anthomyia determinata Walker, 1849 [SYNONYM SPECIES 9820:67DXD nidx=null parent=6DYY6]
Anthomyia guintilis
 - Anthomyia guintilis Pandellé, 1900 [SYNONYM SPECIES 9817:87SD3 nidx=null parent=8D6FV]
 + Anthomyia guintilis Pandellé, 1900 [SYNONYM SPECIES 9820:5VDYD nidx=null parent=6TN8G]
Anthomyia inda
 - Anthomyia inda Ackland & Pont [ACCEPTED SPECIES 9817:87SD4 nidx=null]
 + Anthomyia inda Ackland & Pont, 1977 [SYNONYM SPECIES 9820:67DJ6 nidx=null parent=67DVZ]
Anthomyia latimaculata
 - Anthomyia latimaculata Albququerque [ACCEPTED SPECIES 9817:67DKB nidx=null]
 + Anthomyia latimaculata (Albuquerque, 1959) [ACCEPTED SPECIES 9820:8YR4X nidx=null]
Anthomyia lindigii
 - Anthomyia lindigii Schiner, 1868 [SYNONYM SPECIES 9817:87SD6 nidx=null parent=89ZN9]
 + Anthomyia lindigii Schiner, 1868 [ACCEPTED SPECIES 9820:5VDKD nidx=null]
Anthomyia liturata
 - Anthomyia liturata (Robineau-Desvoidy, 1830) [ACCEPTED SPECIES 9817:5VDJG nidx=null]
 + Anthomyia liturata Meigen, 1838 [SYNONYM SPECIES 9820:67DJJ nidx=null parent=34FXG]
Anthomyia monilis
 - Anthomyia monilis (Meigen, 1826) [ACCEPTED SPECIES 9817:67DK6 nidx=null]
 + Anthomyia monilis Haliday, 1838 [SYNONYM SPECIES 9820:8YR4Z nidx=null parent=6HP5K]
Anthomyia notatifrons
 - Anthomyia notatifrons Harris, 1835 [SYNONYM SPECIES 9817:87SD8 nidx=null parent=8C4QP]
 + Anthomyia notatifrons Harris, 1835 [SYNONYM SPECIES 9820:5VDL9 nidx=null parent=6HKFB]
Anthomyia ochripes
 - Anthomyia ochripes Thomson, 1869 [SYNONYM SPECIES 9817:87P7F nidx=null parent=89ZNF]
 + Anthomyia ochripes Thomson, 1869 [ACCEPTED SPECIES 9820:67DKY nidx=null]
Anthomyia oculifera
 - Anthomyia oculifera Bigot, 1885 [SYNONYM SPECIES 9817:87P7H nidx=null parent=89ZMT]
 + Anthomyia oculifera Bigot, 1885 [ACCEPTED SPECIES 9820:5VDLC nidx=null]
Anthomyia paulistensis
 - Anthomyia paulistensis Albququerque [ACCEPTED SPECIES 9817:67DKK nidx=null]
 + Anthomyia paulistensis (Albuquerque, 1952) [ACCEPTED SPECIES 9820:8YR54 nidx=null]
Anthomyia plurinervis
 - Anthomyia plurinervis Albququerque [ACCEPTED SPECIES 9817:5VDL3 nidx=null]
 + Anthomyia plurinervis (Albuquerque, 1958) [ACCEPTED SPECIES 9820:8YR56 nidx=null]
Anthomyia univittata
 - Anthomyia univittata Roser, 1840 [SYNONYM SPECIES 9817:87P8D nidx=null parent=8D857]
 + Anthomyia univittata Roser, 1840 [SYNONYM SPECIES 9820:5VDMK nidx=null parent=75XWV]
Anthomyia verecunda
 - Anthomyia verecunda Ackland, 2001 [SYNONYM SPECIES 9817:87SDC nidx=null parent=89ZNS]
 + Anthomyia verecunda Ackland, 2001 [ACCEPTED SPECIES 9820:67DN2 nidx=null]
Anthomyza flavipalpis
 - Anthomyza flavipalpis Zetterstedt, 1845 [SYNONYM SPECIES 9817:87P8P nidx=null parent=8D854]
 + Anthomyza flavipalpis Zetterstedt, 1845 [SYNONYM SPECIES 9820:67DP6 nidx=null parent=8YVGT]
Anthomyza gilva
 - Anthomyza gilva Zetterstedt, 1846 [SYNONYM SPECIES 9817:87P8S nidx=null parent=8D862]
 + Anthomyza gilva Zetterstedt, 1846 [SYNONYM SPECIES 9820:5VDQF nidx=null parent=6TXZ8]
Anthomyza latitarsis
 - Anthomyza latitarsis Zetterstedt, 1846 [SYNONYM SPECIES 9817:87P8Z nidx=null parent=8D86B]
 + Anthomyza latitarsis Zetterstedt, 1846 [SYNONYM SPECIES 9820:5VDQ3 nidx=null parent=6TXKT]
Anthomyza nigritarsis
 - Anthomyza nigritarsis Zetterstedt, 1838 [SYNONYM SPECIES 9817:87SDJ nidx=null parent=8D849]
 + Anthomyza nigritarsis Zetterstedt, 1838 [SYNONYM SPECIES 9820:5VDB4 nidx=null parent=769Z4]
Anthrax fenestratus
 - Anthrax fenestratus Gistel, 1856 [ACCEPTED SPECIES 9817:8B22H nidx=null]
 + Anthrax fenestratus Fallén, 1814 [SYNONYM SPECIES 9820:8YR5Q nidx=null parent=56SGL]
Anthrax flava
 - Anthrax flava Meigen, 1820 [SYNONYM SPECIES 9817:67GKB nidx=null parent=7G3ZS]
 + Anthrax flava Wiedemann, 1818 [SYNONYM SPECIES 9820:8YR5R nidx=null parent=7G3ZS]
Anthrax fumipennis
 - Anthrax fumipennis Wiedemann, 1828 [SYNONYM SPECIES 9817:8B22W nidx=null parent=7G3Z7]
 + Anthrax fumipennis Meigen, 1820 [SYNONYM SPECIES 9820:8YR5W nidx=null parent=8YWQY]
Anthrax georgicus
 - Anthrax georgicus Macquart [ACCEPTED SPECIES 9817:87PHD nidx=null]
 + Anthrax georgicus Macquart, 1834 [SYNONYM SPECIES 9820:5VGK2 nidx=null parent=67H7S]
Anthrax nigerrimus
 - Anthrax nigerrimus Bezzi, 1924 [ACCEPTED SPECIES 9817:5VGMR nidx=null]
 + Anthrax nigerrimus Bezzi, 1923 [SYNONYM SPECIES 9820:8YR64 nidx=null parent=67GMK]
Anthrax phaeoptera
 - Anthrax phaeoptera Wiedemann, 1820 [SYNONYM SPECIES 9817:8B263 nidx=null parent=3L78T]
 + Anthrax phaeoptera Meigen, 1820 [SYNONYM SPECIES 9820:8YR65 nidx=null parent=8YT7V]
Anthrax picta
 - Anthrax picta Wiedemann, 1820 [SYNONYM SPECIES 9817:5VGNP nidx=null parent=3DPG8]
 + Anthrax picta Wiedemann, 1819 [SYNONYM SPECIES 9820:8YR66 nidx=null parent=3DPG8]
Anthrax sinuata
 - Anthrax sinuata Meigen, 1820 [ACCEPTED SPECIES 9817:8B27F nidx=null]
 + Anthrax sinuata Meigen, 1804 [SYNONYM SPECIES 9820:8YR6B nidx=null parent=67GVR]
Antichira concoloripes
 - Antichira concoloripes Blanchard, 1851 [SYNONYM SPECIES 9817:5VJY4 nidx=null parent=3X2BH]
 + Antichira concoloripes Blanchard, 1850 [SYNONYM SPECIES 9820:8YX3H nidx=null parent=8YX5R]
Antichira festiva pantochloris
 - Antichira festiva pantochloris Blanchard, 1851 [SYNONYM INFRASPECIFIC_NAME 9817:7GKBZ nidx=null parent=5JH3D]
 + Antichira festiva pantochloris Blanchard, 1850 [SYNONYM INFRASPECIFIC_NAME 9820:8YX9S nidx=null parent=8YXCW]
Antichira pubiventris
 - Antichira pubiventris Blanchard, 1851 [SYNONYM SPECIES 9817:5VJZG nidx=null parent=3X2CW]
 + Antichira pubiventris Blanchard, 1850 [SYNONYM SPECIES 9820:8YX3J nidx=null parent=8YX5S]
Anurida bisetosa
 - Anurida bisetosa Bagnall, 1949 [AMBIGUOUS_SYNONYM SPECIES 9817:F56T nidx=null parent=F589]
 + Anurida bisetosa Goto & Delamare-Deboutteville, 1953 [AMBIGUOUS_SYNONYM SPECIES 9820:8YTG8 nidx=null parent=F589]
 + Anurida bisetosa Massoud, Z, 1967 [AMBIGUOUS_SYNONYM SPECIES 9820:8YTG9 nidx=null parent=F589]
 + Anurida bisetosa Goto, HE & Lawrence, PN in Kloet, GS & Hincks, WD, 1964 [AMBIGUOUS_SYNONYM SPECIES 9820:8YTGB nidx=null parent=F589]
 + Anurida bisetosa Gisin, H, 1960 [AMBIGUOUS_SYNONYM SPECIES 9820:8YTGC nidx=null parent=F589]
 + Anurida bisetosa Timmermans, MJTN, Arbea, JI, Campbell, G, King, MC, Prins, A & Kett, S, 2021 [AMBIGUOUS_SYNONYM SPECIES 9820:8YTGD nidx=null parent=F589]
Anurida tullbergi
 - Anurida tullbergi Christiansen, K & Bellinger, P, 1980 [AMBIGUOUS_SYNONYM SPECIES 9817:F59G nidx=null parent=F56R]
 + Anurida tullbergi Schött, H, 1891 [AMBIGUOUS_SYNONYM SPECIES 9820:8YTQB nidx=null parent=F59H]
 + Anurida tullbergi Reuter, OM, 1901 [AMBIGUOUS_SYNONYM SPECIES 9820:8YTQD nidx=null parent=F59H]
 + Anurida tullbergi Schött, H, 1893 [AMBIGUOUS_SYNONYM SPECIES 9820:8YTQF nidx=null parent=F59H]
 + Anurida tullbergi Schött, H, 1917 [AMBIGUOUS_SYNONYM SPECIES 9820:8YTQG nidx=null parent=F59H]
 + Anurida tullbergi Hammer, 1953 [AMBIGUOUS_SYNONYM SPECIES 9820:8YTQH nidx=null parent=F56R]
 + Anurida tullbergi Reuter, OM, 1895 [AMBIGUOUS_SYNONYM SPECIES 9820:8YTQJ nidx=null parent=F59H]
Apalocnemis holosericea
 - Apalocnemis holosericea Thomson, 1869 [SYNONYM SPECIES 9817:87SM2 nidx=null parent=8B2DF]
 + Apalocnemis holosericea Thomson, 1869 [ACCEPTED SPECIES 9820:F6PW nidx=null]
Apalocnemis ochracea
 - Apalocnemis ochracea Bigot, 1888 [SYNONYM SPECIES 9817:87SM3 nidx=null parent=8B2DD]
 + Apalocnemis ochracea (Bigot, 1888) [ACCEPTED SPECIES 9820:F6Q6 nidx=null]
Aphodius (Acrossus) longitarsus
 - Aphodius (Acrossus) longitarsus Redtenbacher, 1867 [SYNONYM SPECIES 9817:67N87 nidx=null parent=9PPY]
 + Aphodius (Acrossus) longitarsus Redtenbacher, 1868 [SYNONYM SPECIES 9820:8YTSK nidx=null parent=9PPY]
Aphrodita nitens
 - Aphrodita nitens Johnston, 1865 [SYNONYM SPECIES 9817:FKB2 nidx=null parent=FK98]
 + Aphrodita nitens Linnaeus, 1746 [SYNONYM SPECIES 9820:8YTGK nidx=null parent=FK98]
Aphrodite aculeata
 - Aphrodite aculeata (Linnaeus, 1761) [SYNONYM SPECIES 9817:FKBZ nidx=null parent=FK98]
 + Aphrodite aculeata (Linnaeus, 1758) [SYNONYM SPECIES 9820:8YTGL nidx=null parent=FK98]
Aphrophora signoretii
 - Aphrophora signoretii Fitch, 1856 [ACCEPTED SPECIES 9817:FKKX nidx=null]
 + Aphrophora signoretii Fitch, 1856 [ACCEPTED SPECIES 9820:8YTSM nidx=null]
Apiloscatopse picea
 - Apiloscatopse picea (Meigen, 1818) [ACCEPTED SPECIES 9817:5VNW8 nidx=null]
 + Apiloscatopse picea (Wiedemann, 1818) [ACCEPTED SPECIES 9820:8YR72 nidx=null]
Apionsoma
 - Apionsoma Sluiter, 1902 [ACCEPTED SUBGENUS 9817:8VV2Z nidx=null]
 - Apionsoma Sluiter, 1902 [SYNONYM SUBGENUS 9817:8VV32 nidx=null parent=8VV2Z]
 + Apionsoma Sluiter, 1902 [SYNONYM SUBGENUS 9820:7NPDK nidx=null parent=8YQNZ]
 + Apionsoma Sluiter, 1902 [ACCEPTED SUBGENUS 9820:8YQNZ nidx=null]
Aprionus lobatus
 - Aprionus lobatus Mamaev, 1997 [ACCEPTED SPECIES 9817:87TBM nidx=null]
 + Aprionus lobatus Berest, 1986 [SYNONYM SPECIES 9820:FWW6 nidx=null parent=5W2QN]
Aprionus rostratus
 - Aprionus rostratus Mamaev & Berest, 1990 [ACCEPTED SPECIES 9817:FWX2 nidx=null]
 + Aprionus rostratus Yukawa, 1971 [SYNONYM SPECIES 9820:FWWZ nidx=null parent=FWWG]
Archisepsis (Enicita) discolor
 - Archisepsis (Enicita) discolor Bigot, 1857 [ACCEPTED SPECIES 9817:8B3HJ nidx=null]
 + Archisepsis (Enicita) discolor (Bigot, 1886) [ACCEPTED SPECIES 9820:8YR7P nidx=null]
Arctosyrphus
 - Arctosyrphus [ACCEPTED SUBGENUS 9817:89RWS nidx=null]
 + Arctosyrphus [ACCEPTED GENUS 9820:8YQQH nidx=null]
Arcyzonidae
 - Arcyzonidae [ACCEPTED FAMILY 9817:857WJ nidx=null]
 + Arcyzonidae Kesling, 1961 [ACCEPTED FAMILY 9820:8YQY9 nidx=null]
Arescon dimidiata
 - Arescon dimidiata (Curtis, 1832) [ACCEPTED SPECIES 9817:683CS nidx=null]
 + Arescon dimidiata (Curtis, 1832) [ACCEPTED SPECIES 9820:8YV82 nidx=null]
Aricia tristicula
 - Aricia tristicula Holmgren, 1872 [SYNONYM SPECIES 9817:87QL9 nidx=null parent=8D7DJ]
 + Aricia tristicula Holmgren, 1872 [SYNONYM SPECIES 9820:GM6L nidx=null parent=4DKFX]
Arnoglossus rueppelii
 - Arnoglossus rueppelii (Cocco, 1844) [ACCEPTED SPECIES 9817:8V6V6 nidx=null]
 + Arnoglossus rueppelii (Cocco, 1844) [ACCEPTED SPECIES 9820:8YTNF nidx=null]
Arrhopalites binoculatus
 - Arrhopalites binoculatus Womersley, 1939 [SYNONYM SPECIES 9817:5W4GX nidx=null parent=4QNZX]
 + Arrhopalites binoculatus Denis, J-R, 1933 [SYNONYM SPECIES 9820:8YV9C nidx=null parent=4QNXT]
 + Arrhopalites binoculatus Mills, 1934 [SYNONYM SPECIES 9820:8YV9D nidx=null parent=4QNXT]
 + Arrhopalites binoculatus Yosii, 1955 [SYNONYM SPECIES 9820:8YV9F nidx=null parent=4QNYT]
 + Arrhopalites binoculatus Yosii, 1954 [SYNONYM SPECIES 9820:8YV9G nidx=null parent=4QNYT]
 + Arrhopalites binoculatus Denis, 1931 [SYNONYM SPECIES 9820:8YV9H nidx=null parent=4QNXT]
Arrhopalites jax
 - Arrhopalites jax Zeppelini Filho, D, [1997] [SYNONYM SPECIES 9817:5W4GZ nidx=null parent=4QNZ5]
 + Arrhopalites jax Zeppelini Filho, D, 1996 [SYNONYM SPECIES 9820:8Z486 nidx=null parent=4QNZ5]
Asilus angustifrons
 - Asilus angustifrons Loew, 1850 [ACCEPTED SPECIES 9817:87QPC nidx=null]
 + Asilus angustifrons Loew, 1849 [SYNONYM SPECIES 9820:8YR84 nidx=null parent=3WZ93]
Asilus bombylius
 - Asilus bombylius Villers, 1789 [ACCEPTED SPECIES 9817:68658 nidx=null]
 + Asilus bombylius De Geer, 1776 [SYNONYM SPECIES 9820:8YR87 nidx=null parent=3S94V]
Asilus culiciformis
 - Asilus culiciformis Thunberg, 1791 [ACCEPTED SPECIES 9817:87TWZ nidx=null]
 + Asilus culiciformis Pallas & Wiedemann, 1818 [AMBIGUOUS_SYNONYM SPECIES 9820:5W64T nidx=null parent=8YSVZ]
 + Asilus culiciformis Fabricius, 1775 [AMBIGUOUS_SYNONYM SPECIES 9820:8YR89 nidx=null parent=3MYLG]
 + Asilus culiciformis Gmelin, 1790 [AMBIGUOUS_SYNONYM SPECIES 9820:8YR8B nidx=null parent=3MYM4]
Asilus fasciatus
 - Asilus fasciatus Rossi, 1790 [ACCEPTED SPECIES 9817:5W64Y nidx=null]
 + Asilus fasciatus Fabricius, 1775 [AMBIGUOUS_SYNONYM SPECIES 9820:8YR8M nidx=null parent=4MS4W]
Asilus flavipes
 - Asilus flavipes Villers, 1789 [ACCEPTED SPECIES 9817:68659 nidx=null]
 + Asilus flavipes Esipenko, 1970 [AMBIGUOUS_SYNONYM SPECIES 9820:6864X nidx=null parent=5VTSW]
 + Asilus flavipes Scopoli, 1763 [AMBIGUOUS_SYNONYM SPECIES 9820:8YR8P nidx=null parent=4JV2F]
Asilus fulvus
 - Asilus fulvus Rossi, 1790 [ACCEPTED SPECIES 9817:685SB nidx=null]
 + Asilus fulvus Geoffroy, 1785 [SYNONYM SPECIES 9820:6864B nidx=null parent=3S946]
Asilus marginatus
 - Asilus marginatus Geoffroy, 1785 [ACCEPTED SPECIES 9817:5W65R nidx=null]
 + Asilus marginatus Linnaeus, 1758 [AMBIGUOUS_SYNONYM SPECIES 9820:8YR8S nidx=null parent=3S69S]
Asilus marginellus
 - Asilus marginellus Schrank, 1803 [ACCEPTED SPECIES 9817:67TTR nidx=null]
 + Asilus marginellus Fabricius, 1781 [SYNONYM SPECIES 9820:8YR8T nidx=null parent=49CHQ]
Asilus punctatus
 - Asilus punctatus Macquart, 1834 [ACCEPTED SPECIES 9817:5W65B nidx=null]
 + Asilus punctatus Fabricius, 1781 [AMBIGUOUS_SYNONYM SPECIES 9820:5W5TB nidx=null parent=349LR]
 + Asilus punctatus Meigen, 1804 [AMBIGUOUS_SYNONYM SPECIES 9820:67TTB nidx=null parent=6GBSG]
 + Asilus punctatus Scopoli, 1763 [AMBIGUOUS_SYNONYM SPECIES 9820:8YR93 nidx=null parent=9NM]
Asilus rufibarbis
 - Asilus rufibarbis Macquart, 1850 [ACCEPTED SPECIES 9817:67TTH nidx=null]
 + Asilus rufibarbis Meigen, 1820 [SYNONYM SPECIES 9820:8YR94 nidx=null parent=3DDWS]
Asilus tabidus
 - Asilus tabidus Meigen, 1820 [SYNONYM SPECIES 9817:8B4FQ nidx=null parent=46JSC]
 + Asilus tabidus Wiedemann, 1820 [SYNONYM SPECIES 9820:8YR99 nidx=null parent=8YV7H]
Asilus therevinus
 - Asilus therevinus Rondani, 1850 [ACCEPTED SPECIES 9817:5VTTP nidx=null]
 + Asilus therevinus Rondani, 1851 [SYNONYM SPECIES 9820:8YR9C nidx=null parent=6SY]
Asilus tibialis
 - Asilus tibialis Gimmerthal, 1847 [PROVISIONALLY_ACCEPTED SPECIES 9817:685TP nidx=null]
 - Asilus tibialis Pallas, 1818 [ACCEPTED SPECIES 9817:6865P nidx=null]
 + Asilus tibialis Fabricius, 1794 [AMBIGUOUS_SYNONYM SPECIES 9820:5W5TN nidx=null parent=4C8ZN]
 + Asilus tibialis Macquart, 1834 [AMBIGUOUS_SYNONYM SPECIES 9820:5W65P nidx=null parent=3WZG2]
 + Asilus tibialis Meigen, 1820 [AMBIGUOUS_SYNONYM SPECIES 9820:8YR9D nidx=null parent=8B29M]
Asphondylia atriplicis
 - Asphondylia atriplicis Gagné, 1986 [ACCEPTED SPECIES 9817:87QRY nidx=null]
 + Asphondylia atriplicis Townsend, 1893 [SYNONYM SPECIES 9820:8YR9G nidx=null parent=RZ5W]
Asteralobia patriniae
 - Asteralobia patriniae (Shinji, 1938) [ACCEPTED SPECIES 9817:5VV2F nidx=null]
 + Asteralobia patriniae Kovalev, 1964 [SYNONYM SPECIES 9820:HRB9 nidx=null parent=HRB8]
Astrochema migrator
 - Astrochema migrator Koehler, 1904 [SYNONYM SPECIES 9817:5VVT7 nidx=null parent=5VW6N]
 + Astrochema migrator [SYNONYM SPECIES 9820:8YPYC nidx=null parent=5VW6N]
Astylozoon piriforme
 - Astylozoon piriforme [ACCEPTED SPECIES 9817:J64N nidx=null]
 + Astylozoon piriforme [ACCEPTED SPECIES 9820:8YVH4 nidx=null]
Ateloglutus blanchardi
 - Ateloglutus blanchardi Cortés, 1979 [SYNONYM SPECIES 9817:87VPH nidx=null parent=8B4SW]
 + Ateloglutus blanchardi Cortés, 1979 [ACCEPTED SPECIES 9820:J8TJ nidx=null]
Atherigona ponti
 - Atherigona ponti Xue & Yang, 1998 [ACCEPTED SPECIES 9817:6898X nidx=null]
 + Atherigona ponti Deeming, 1971 [SYNONYM SPECIES 9820:688X9 nidx=null parent=8B529]
Athyroglossa (Athyroglossa) granulosa
 - Athyroglossa (Athyroglossa) granulosa (Cresson, 1922) [ACCEPTED SPECIES 9817:8B55Y nidx=null]
 + Athyroglossa (Athyroglossa) granulosa (Cresson, 1923) [ACCEPTED SPECIES 9820:8YRBK nidx=null]
Athyroglossa melanderi
 - Athyroglossa melanderi (Cresson, 1922) [ACCEPTED SPECIES 9817:JGBR nidx=null]
 + Athyroglossa melanderi (Cresson, 1923) [ACCEPTED SPECIES 9820:8YRBL nidx=null]
Audouinia saxatilis
 - Audouinia saxatilis Gravier, 1906 [SYNONYM SPECIES 9817:JPPH nidx=null parent=VGZH]
 + Audouinia saxatilis Gravier, 1905 [SYNONYM SPECIES 9820:8YV57 nidx=null parent=8YW8G]
Austrodromia valdiviana
 - Austrodromia valdiviana Philippi, 1865 [SYNONYM SPECIES 9817:87WGM nidx=null parent=8B5RZ]
 + Austrodromia valdiviana Philippi, 1865 [ACCEPTED SPECIES 9820:JWG5 nidx=null]
Austrosiphon
 - Austrosiphon Fisher, 1954 [SYNONYM SUBGENUS 9817:8W5F7 nidx=null parent=8W5F8]
 - Austrosiphon Fisher, 1954 [ACCEPTED SUBGENUS 9817:8W5F8 nidx=null]
 + Austrosiphon Fisher, 1954 [ACCEPTED SUBGENUS 9820:7Q78V nidx=null]
 + Austrosiphon Fisher, 1954 [SYNONYM SUBGENUS 9820:8YT4V nidx=null parent=7Q78V]
Ayurakitia griffithi
 - Ayurakitia griffithi Thurman, 1954 [SYNONYM SPECIES 9817:87WSJ nidx=null parent=89VD7]
 + Ayurakitia griffithi Thurman, 1954 [ACCEPTED SPECIES 9820:K574 nidx=null]
Baccazia licin
 - Baccazia licin P.K.L. Ng, 2018 [ACCEPTED SPECIES 9817:84CBD nidx=null]
 + Baccazia licin PKL Ng, 2018 [ACCEPTED SPECIES 9820:8YV7N nidx=null]
Baccha obscuripennis
 - Baccha obscuripennis Meigen [ACCEPTED SPECIES 9817:87WTF nidx=null]
 + Baccha obscuripennis Meigen, 1822 [SYNONYM SPECIES 9820:K6WG nidx=null parent=K6WQ]
Balaenoptera sibbaldii
 - Balaenoptera sibbaldii (Gray, 1847) [SYNONYM SPECIES 9817:8W6NT nidx=null parent=5FWBJ]
 + Balaenoptera sibbaldii (Gray, 1847) [SYNONYM SPECIES 9820:8YV8C nidx=null parent=5FWBJ]
Baseodiscus delineatus var. curtus
 - Baseodiscus delineatus var. curtus [SYNONYM VARIETY 9817:5MJ3K nidx=null parent=5WCTV]
 + Baseodiscus delineatus var. curtus [SYNONYM VARIETY 9820:8Z2WM nidx=null parent=5WCTV]
Baseodiscus mexicanum
 - Baseodiscus mexicanum ? [SYNONYM SPECIES 9817:8W6R5 nidx=null parent=84XNX]
 + Baseodiscus mexicanum ? [SYNONYM SPECIES 9820:8YV99 nidx=null parent=84XNX]
Baseodiscus ophiocephalus
 - Baseodiscus ophiocephalus ? [SYNONYM SPECIES 9817:8W6R6 nidx=null parent=39JVV]
 + Baseodiscus ophiocephalus ? [SYNONYM SPECIES 9820:8YV9B nidx=null parent=39JVV]
Bathytoma (Parabathytoma) regnans
 - Bathytoma (Parabathytoma) regnans Melvill, 1918 [SYNONYM SPECIES 9817:7QB7D nidx=null parent=KYKB]
 + Bathytoma (Parabathytoma) regnans Melvill, 1919 [SYNONYM SPECIES 9820:8YV9Y nidx=null parent=8YV9Z]
Bathytoma regnans
 - Bathytoma regnans Melvill, 1918 [ACCEPTED SPECIES 9817:KYKB nidx=null]
 + Bathytoma regnans Melvill, 1919 [ACCEPTED SPECIES 9820:8YV9Z nidx=null]
Beckerella quadriocellata
 - Beckerella quadriocellata Ionesco, 1922 [SYNONYM SPECIES 9817:L5ZW nidx=null parent=423JJ]
 + Beckerella quadriocellata Bonet, F, 1930 [SYNONYM SPECIES 9820:8Z4GQ nidx=null parent=423JJ]
Bellisotoma joycei
 - Bellisotoma joycei (Soto-Adames & Giordano, 2011) [ACCEPTED SPECIES 9817:68H3Q nidx=null]
 + Bellisotoma joycei Soto-Adames, FN, Giordano, R & Christiansen, K, 2013 [SYNONYM SPECIES 9820:8Z4HF nidx=null parent=8ZMPH]
Belobackenbardia cornicula
 - Belobackenbardia cornicula Shatalkin, 2001 [ACCEPTED SPECIES 9817:5WGT7 nidx=null]
 + Belobackenbardia cornicula Shatalkin, 2002 [ACCEPTED SPECIES 9820:8YRGF nidx=null]
Belobackenbardia freidbergi
 - Belobackenbardia freidbergi Shatalkin, 2001 [ACCEPTED SPECIES 9817:LB4F nidx=null]
 + Belobackenbardia freidbergi Shatalkin, 2002 [ACCEPTED SPECIES 9820:8YRGG nidx=null]
Belobackenbardia munroi
 - Belobackenbardia munroi Shatalkin, 2001 [ACCEPTED SPECIES 9817:LB4G nidx=null]
 + Belobackenbardia munroi Shatalkin, 2002 [ACCEPTED SPECIES 9820:8YRGH nidx=null]
Belobackenbardia stuckenbergiorum
 - Belobackenbardia stuckenbergiorum Shatalkin, 2001 [ACCEPTED SPECIES 9817:LB4H nidx=null]
 + Belobackenbardia stuckenbergiorum Shatalkin, 2002 [ACCEPTED SPECIES 9820:8YRGJ nidx=null]
Berberis hookeri var. viridis
 - Berberis hookeri var. viridis C. K. Schneid. [SYNONYM VARIETY 9817:5MJY5 nidx=null parent=5FXPT]
 + Berberis hookeri var. viridis C. K. Schneid. [SYNONYM VARIETY 9820:8Z5Z9 nidx=null parent=5FXPT]
Berberis hookeri viridis
 - Berberis hookeri viridis C. K. Schneid. [SYNONYM INFRASPECIFIC_NAME 9817:5DN3D nidx=null parent=5WKD2]
 + Berberis hookeri viridis C. K. Schneid. [SYNONYM INFRASPECIFIC_NAME 9820:8Z5Z8 nidx=null parent=5WKD2]
Beris brevis
 - Beris brevis Cui, Li & Yang, 2010 [ACCEPTED SPECIES 9817:87SKR nidx=null]
 + Beris brevis Walker, 1848 [SYNONYM SPECIES 9820:LL39 nidx=null parent=BWPS]
Berryteuthis magister shevtsovi
 - Berryteuthis magister shevtsovi Katsugin, 2000 [ACCEPTED SUBSPECIES 9817:5DN6K nidx=null]
 + Berryteuthis magister shevtsovi Katugin, 2000 [SYNONYM SUBSPECIES 9820:8YZLF nidx=null parent=8ZGCG]
Bibio abbreviatus
 - Bibio abbreviatus Loew, 1864 [ACCEPTED SPECIES 9817:LR3Y nidx=null]
 + Bibio abbreviatus Wulp, 1881 [AMBIGUOUS_SYNONYM SPECIES 9820:LR3X nidx=null parent=68JPX]
Bibio brunnipes
 - Bibio brunnipes (Fabricius, 1781) [ACCEPTED SPECIES 9817:LR5H nidx=null]
 + Bibio brunnipes (Fabricius, 1794) [ACCEPTED SPECIES 9820:8YRH9 nidx=null]
Bibio clavipes
 - Bibio clavipes Meigen [ACCEPTED SPECIES 9817:87ZXD nidx=null]
 + Bibio clavipes Meigen, 1818 [SYNONYM SPECIES 9820:5WJNL nidx=null parent=68JNP]
Bibio crassipes
 - Bibio crassipes Duda, 1930 [ACCEPTED SPECIES 9817:LR66 nidx=null]
 + Bibio crassipes Müller, 1776 [SYNONYM SPECIES 9820:LR65 nidx=null parent=LR9L]
Bibio macer
 - Bibio macer Loew, 1873 [ACCEPTED SPECIES 9817:LR9K nidx=null]
 + Bibio macer Oustalet, 1870 [SYNONYM SPECIES 9820:8YRHG nidx=null parent=8D8LL]
Bibio varipes
 - Bibio varipes Meigen, 1818 [ACCEPTED SPECIES 9817:LRCZ nidx=null]
 - Bibio varipes Duda, 1930 [PROVISIONALLY_ACCEPTED SPECIES 9817:87ZXM nidx=null]
 + Bibio varipes Meigen, 1830 [ACCEPTED SPECIES 9820:8YRHQ nidx=null]
Biroina meyersi
 - Biroina meyersi (Richards, 1973) [ACCEPTED SPECIES 9817:LW35 nidx=null]
 + Biroina meyersi Marshall, 1989 [SYNONYM SPECIES 9820:8YRHV nidx=null parent=8ZQXB]
Bisencya bisignata
 - Bisencya bisignata (Blanchard, 1851) [ACCEPTED SPECIES 9817:LWRB nidx=null]
 + Bisencya bisignata (Blanchard, 1850) [ACCEPTED SPECIES 9820:8YVSW nidx=null]
Bistolida owenii owenii
 - Bistolida owenii owenii (Gray in G. B. Sowerby I, 1832) [ACCEPTED SUBSPECIES 9817:8SXW7 nidx=null]
 + Bistolida owenii owenii (Gray in G. B. Sowerby I, 1832) [SYNONYM SUBSPECIES 9820:5FY6C nidx=null parent=LX3W]
Bolboceras mundus
 - Bolboceras mundus Redtenbacher, 1867 [SYNONYM SPECIES 9817:MBBX nidx=null parent=MBNC]
 + Bolboceras mundus Redtenbacher, 1868 [SYNONYM SPECIES 9820:8YVVB nidx=null parent=MBNC]
Bolboceras tetraodon
 - Bolboceras tetraodon Redtenbacher, 1867 [SYNONYM SPECIES 9817:5WN4S nidx=null parent=MBNJ]
 + Bolboceras tetraodon Redtenbacher, 1868 [SYNONYM SPECIES 9820:8YVVC nidx=null parent=MBNJ]
Boletina longicauda
 - Boletina longicauda Saigusa, 1968 [ACCEPTED SPECIES 9817:MC2H nidx=null]
 + Boletina longicauda Lundström, 1912 [SYNONYM SPECIES 9820:MC2J nidx=null parent=MC2N]
Boletina longicornis
 - Boletina longicornis Statz, 1944 [ACCEPTED SPECIES 9817:87SVH nidx=null]
 + Boletina longicornis Johannsen, 1912 [SYNONYM SPECIES 9820:MC2K nidx=null parent=8CFSZ]
Bolitophila cinerea
 - Bolitophila cinerea Meigen, 1818 [SYNONYM SPECIES 9817:87SVS nidx=null parent=8B7TG]
 + Bolitophila cinerea Meigen & Wiedemann, 1818 [ACCEPTED SPECIES 9820:MDVX nidx=null]
Bolivina prion
 - Bolivina prion Lindenberg, 1965 [ACCEPTED SPECIES 9817:8W6XW nidx=null]
 + Bolivina prion Lindenberg, 1965 [ACCEPTED SPECIES 9820:8YVFK nidx=null]
Bombylius abdominalis
 - Bombylius abdominalis Wiedemann, 1830 [ACCEPTED SPECIES 9817:87SWP nidx=null]
 + Bombylius abdominalis Johnson & Johnson, 1975 [AMBIGUOUS_SYNONYM SPECIES 9820:MG4D nidx=null parent=8B83D]
 + Bombylius abdominalis Wiedemann, 1828 [AMBIGUOUS_SYNONYM SPECIES 9820:8YRJR nidx=null parent=6TQD3]
Bombylius fuliginosus
 - Bombylius fuliginosus Wiedemann, 1820 [SYNONYM SPECIES 9817:882FZ nidx=null parent=8B85N]
 + Bombylius fuliginosus Pallas & Wiedemann, 1818 [SYNONYM SPECIES 9820:8YRJX nidx=null parent=8B85N]
Bombylius maculipennis
 - Bombylius maculipennis Eversmann, 1834 [ACCEPTED SPECIES 9817:8B8BT nidx=null]
 + Bombylius maculipennis Macquart, 1846 [SYNONYM SPECIES 9820:8YRK5 nidx=null parent=7D6WG]
Bombylius pulchellus
 - Bombylius pulchellus Eversmann, 1834 [ACCEPTED SPECIES 9817:87SZ3 nidx=null]
 + Bombylius pulchellus Wulp, 1880 [AMBIGUOUS_SYNONYM SPECIES 9820:MGH3 nidx=null parent=3BSG6]
 + Bombylius pulchellus Roberts, 1928 [AMBIGUOUS_SYNONYM SPECIES 9820:MGH5 nidx=null parent=4ZMGK]
Bombylius variegatus
 - Bombylius variegatus Thunberg, 1789 [ACCEPTED SPECIES 9817:882KL nidx=null]
 + Bombylius variegatus De Geer, 1776 [AMBIGUOUS_SYNONYM SPECIES 9820:MGLN nidx=null parent=8B82T]
 + Bombylius variegatus Macquart, 1840 [AMBIGUOUS_SYNONYM SPECIES 9820:MGLP nidx=null parent=377Q2]
 + Bombylius variegatus Wiedemann, 1818 [AMBIGUOUS_SYNONYM SPECIES 9820:8YRKD nidx=null parent=58YDD]
Bonasa umbellus phaios
 - Bonasa umbellus phaios Aldrich & Friedmann, 1943 [ACCEPTED SUBSPECIES 9817:5FZ6S nidx=null]
 + Bonasa umbellus phaios Aldrich & Friedmann, 1943 [ACCEPTED SUBSPECIES 9820:8Z2WR nidx=null]
Botanophila latifrons
 - Botanophila latifrons (Zetterstedt, 1845) [ACCEPTED SPECIES 9817:5WP4P nidx=null]
 - Botanophila latifrons (Stein, 1918) [PROVISIONALLY_ACCEPTED SPECIES 9817:882PW nidx=null]
 + Botanophila latifrons (Zetterstedt, 1838) [ACCEPTED SPECIES 9820:8YRKX nidx=null]
Bothriovulsus pineolae
 - Bothriovulsus pineolae (Wray, 1946 tt) [ACCEPTED SPECIES 9817:MNKR nidx=null]
 + Bothriovulsus pineolae (Wray, 1946) [ACCEPTED SPECIES 9820:8Z4L7 nidx=null]
Bottapotamon nanan
 - Bottapotamon nanan X.M. Zhou, Zhu & Naruse, 2008 [ACCEPTED SPECIES 9817:68QMR nidx=null]
 + Bottapotamon nanan XM Zhou, Zhu & Naruse, 2008 [ACCEPTED SPECIES 9820:8YVGH nidx=null]
Bourletiella arvalis
 - Bourletiella arvalis (Fitch, 1862) [ACCEPTED SPECIES 9817:MR9H nidx=null]
 + Bourletiella arvalis (Fitch, A, 1863) [ACCEPTED SPECIES 9820:8YVYL nidx=null]
Bourletiella hortensis
 - Bourletiella hortensis Stach, 1956 [AMBIGUOUS_SYNONYM SPECIES 9817:MR9W nidx=null parent=692NX]
 - Bourletiella hortensis (Fitch, 1862) [ACCEPTED SPECIES 9817:MR9X nidx=null]
 + Bourletiella hortensis (Fitch, A, 1863) [ACCEPTED SPECIES 9820:8YVGR nidx=null]
Bourletiella pistillum
 - Bourletiella pistillum Schulz, H-J, 2015 [SYNONYM SPECIES 9817:5WQNT nidx=null parent=5X2NT]
 + Bourletiella pistillum Gisin, 1946 [SYNONYM SPECIES 9820:8Z4LJ nidx=null parent=5X2NT]
 + Bourletiella pistillum Ellis, WN, 1975 [SYNONYM SPECIES 9820:8Z4LL nidx=null parent=5X2NT]
 + Bourletiella pistillum Rusek, J in Dlabola, J, 1977 [SYNONYM SPECIES 9820:8Z4LM nidx=null parent=5X2NT]
 + Bourletiella pistillum Dallai, R, Malatesta, E & Ramellini, P in Minelli, A, Ruffo, S & La Posta, S, 1995 [SYNONYM SPECIES 9820:8Z4LN nidx=null parent=5X2NT]
 + Bourletiella pistillum Auclerc, A, Ponge, JF, Barot, S & Dubs, F, 2009 [SYNONYM SPECIES 9820:8Z4LP nidx=null parent=5X2NT]
 + Bourletiella pistillum Stach, J, 1956 [SYNONYM SPECIES 9820:8Z4LQ nidx=null parent=5X2NT]
 + Bourletiella pistillum Nayrolles, P, 1993 [SYNONYM SPECIES 9820:8Z4LR nidx=null parent=5X2NT]
 + Bourletiella pistillum Fjellberg, A, 1984 [SYNONYM SPECIES 9820:8Z4LS nidx=null parent=5X2NT]
 + Bourletiella pistillum Dunger, W & Voigtländer, K, 2009 [SYNONYM SPECIES 9820:8Z4LV nidx=null parent=5X2NT]
 + Bourletiella pistillum Nayrolles, P, 1995 [SYNONYM SPECIES 9820:8Z4LY nidx=null parent=5X2NT]
Bourletiella pistillum pistillum
 - Bourletiella pistillum pistillum Bretfeld, G, 1999 [SYNONYM SUBSPECIES 9817:5FZHK nidx=null parent=5X2NT]
 + Bourletiella pistillum pistillum Ellis, WN, 1975 [SYNONYM SUBSPECIES 9820:8Z7SZ nidx=null parent=5X2NT]
Bourletiella pluslineata
 - Bourletiella pluslineata (Stach, 1922) [ACCEPTED SPECIES 9817:68QNT nidx=null]
 + Bourletiella pluslineata Gisin, H, 1960 [SYNONYM SPECIES 9820:8Z4LZ nidx=null parent=6HPM5]
Brachelia westermanni
 - Brachelia westermanni Wiedemann [ACCEPTED SPECIES 9817:MSC8 nidx=null]
 + Brachelia westermanni Robineau-Desvoidy, 1830 [ACCEPTED SPECIES 9820:8YRL4 nidx=null]
Brachycampta ruficauda
 - Brachycampta ruficauda Wulp, 1874 [SYNONYM SPECIES 9817:8B8SJ nidx=null parent=BW8Q]
 + Brachycampta ruficauda Wulp, 1875 [SYNONYM SPECIES 9820:8YRL6 nidx=null parent=8YR2C]
Brachycoma afra
 - Brachycoma afra Wulp, 1890 [SYNONYM SPECIES 9817:8B8SS nidx=null parent=723HX]
 + Brachycoma afra Wulp, 1888 [SYNONYM SPECIES 9820:8YRL7 nidx=null parent=8YTDW]
Brachypalpus (Brachypalpus) olivaceus
 - Brachypalpus (Brachypalpus) olivaceus (Meigen, 1822) [ACCEPTED SPECIES 9817:8B8X4 nidx=null]
 + Brachypalpus (Brachypalpus) olivaceus (Wiedemann, 1822) [ACCEPTED SPECIES 9820:8YRLM nidx=null]
Brahmina
 - Brahmina Blanchard, 1851 [ACCEPTED GENUS 9817:3CRY nidx=null]
 + Brahmina Blanchard, 1850 [ACCEPTED GENUS 9820:8YQVT nidx=null]
Brahmina (Brahmina)
 - Brahmina (Brahmina) Blanchard, 1851 [ACCEPTED SUBGENUS 9817:7ZLPB nidx=null]
 + Brahmina (Brahmina) Blanchard, 1850 [ACCEPTED SUBGENUS 9820:8YQVV nidx=null]
Brahmina comata
 - Brahmina comata Blanchard, 1851 [SYNONYM SPECIES 9817:N69L nidx=null parent=4K543]
 + Brahmina comata Blanchard, 1850 [SYNONYM SPECIES 9820:8YW39 nidx=null parent=4K543]
Branchinella
 - Branchinella Sayce, 1903 [ACCEPTED SUBGENUS 9817:8VVQG nidx=null]
 + Branchinella Sayce, 1903 [ACCEPTED SUBGENUS 9820:7NR62 nidx=null]
Branchinellites
 - Branchinellites Daday, 1910 [ACCEPTED SUBGENUS 9817:8W5CC nidx=null]
 + Branchinellites Daday, 1910 [ACCEPTED SUBGENUS 9820:7Q7BT nidx=null]
Brevitritospinus
 - Brevitritospinus Amin, Heckmann, Ha, Luc & Doanh, 2000 [ACCEPTED SUBGENUS 9817:8W5DS nidx=null]
 + Brevitritospinus Amin, Heckmann, Ha, Luc & Doanh, 2000 [ACCEPTED SUBGENUS 9820:7Q7BV nidx=null]
Bromleyus flavidorsus
 - Bromleyus flavidorsus Hardy, 1944 [ACCEPTED SPECIES 9817:NCMF nidx=null]
 + Bromleyus flavidorsus Hardy, 1945 [ACCEPTED SPECIES 9820:8YRNY nidx=null]
Brunettia alternata
 - Brunettia alternata Satchell, 1958 [ACCEPTED SPECIES 9817:NFMM nidx=null]
 + Brunettia alternata Satchell, 1953 [ACCEPTED SPECIES 9820:8YRPW nidx=null]
Buliminus (Mesembrinus) bowkeri
 - Buliminus (Mesembrinus) bowkeri G. B. Sowerby, 1889 [SYNONYM SPECIES 9817:NSXN nidx=null parent=6VWY4]
 + Buliminus (Mesembrinus) bowkeri G. B. Sowerby III, 1890 [SYNONYM SPECIES 9820:8YVK3 nidx=null parent=6VWY4]
Bulimus cuneus
 - Bulimus cuneus L. Pfeiffer, 1852 [SYNONYM SPECIES 9817:7QG8D nidx=null parent=7STD8]
 + Bulimus cuneus L. Pfeiffer, 1854 [SYNONYM SPECIES 9820:8Z4NY nidx=null parent=8ZHH5]
Calappa fornicata
 - Calappa fornicata (JC Fabricius, 1782) [SYNONYM SPECIES 9817:84CSH nidx=null parent=ZYYP]
 + Calappa fornicata JC Fabricius, 1798 [SYNONYM SPECIES 9820:8YVLZ nidx=null parent=PFQL]
Calcarobiotus
 - Calcarobiotus Dastych, 1993 [ACCEPTED SUBGENUS 9817:8VVV8 nidx=null]
 + Calcarobiotus Dastych, 1993 [ACCEPTED SUBGENUS 9820:7NRJQ nidx=null]
Calcochaetis bicolor
 - Calcochaetis bicolor Bigot, 1879 [SYNONYM SPECIES 9817:PHR8 nidx=null parent=6X9S3]
 + Calcochaetis bicolor Bigot, 1877 [SYNONYM SPECIES 9820:8YRRN nidx=null parent=6X9S3]
Calliphora (Calliphora) rohdendorfi
 - Calliphora (Calliphora) rohdendorfi Grunin, 1970 [ACCEPTED SPECIES 9817:8B9Y2 nidx=null]
 + Calliphora (Calliphora) rohdendorfi Grunin, 1966 [ACCEPTED SPECIES 9820:8YRRS nidx=null]
Callistethus
 - Callistethus Blanchard, 1851 [ACCEPTED GENUS 9817:3FKH nidx=null]
 + Callistethus Blanchard, 1850 [ACCEPTED GENUS 9820:8YPV2 nidx=null]
Callyntrura kudatensis
 - Callyntrura kudatensis Yoshii, 1981 [ACCEPTED SPECIES 9817:PWFF nidx=null]
 + Callyntrura kudatensis Yoshii, 1985 [SYNONYM SPECIES 9820:8Z4VT nidx=null parent=8ZNTD]
Calobata bicolor
 - Calobata bicolor Walker, 1861 [ACCEPTED SPECIES 9817:68VDJ nidx=null]
 + Calobata bicolor Walker, 1853 [SYNONYM SPECIES 9820:8YRS9 nidx=null parent=CRP]
Calohilara
 - Calohilara [ACCEPTED SUBGENUS 9817:89S2Q nidx=null]
 + Calohilara [ACCEPTED GENUS 9820:8YQQQ nidx=null]
Calvatomina rufescens
 - Calvatomina rufescens (Reuter, 1890) [ACCEPTED SPECIES 9817:68WW3 nidx=null]
 + Calvatomina rufescens Heckman, CW, 2001 [AMBIGUOUS_SYNONYM SPECIES 9820:8Z4Y2 nidx=null parent=3G2X]
 + Calvatomina rufescens Soto-Adames, FN, 1988 [AMBIGUOUS_SYNONYM SPECIES 9820:8Z4Y3 nidx=null parent=3G2X]
 + Calvatomina rufescens (Reuter, OM, 1892) [ACCEPTED SPECIES 9820:8Z4Y4 nidx=null]
 + Calvatomina rufescens Mari Mutt, JA, 1987 [AMBIGUOUS_SYNONYM SPECIES 9820:8Z4Y5 nidx=null parent=3G2X]
Calyptrostegia
 - Calyptrostegia C.A.Mey. [SYNONYM UNRANKED 9817:5T76N nidx=null parent=63M7C]
 + Calyptrostegia C.A.Mey. [SYNONYM UNRANKED 9820:8YXR5 nidx=null parent=63M7C]
Cambarellus
 - Cambarellus Ortmann, 1905 [ACCEPTED SUBGENUS 9817:8VVXK nidx=null]
 + Cambarellus Ortmann, 1905 [ACCEPTED SUBGENUS 9820:7NRQL nidx=null]
Camptomyia dubia
 - Camptomyia dubia Mamaev, 1961 [ACCEPTED SPECIES 9817:885C8 nidx=null]
 + Camptomyia dubia Mamaev, 1966 [SYNONYM SPECIES 9820:QFLH nidx=null parent=QFMH]
Canthon (Canthon) auricollis
 - Canthon (Canthon) auricollis Redtenbacher, 1867 [ACCEPTED SPECIES 9817:QP6M nidx=null]
 + Canthon (Canthon) auricollis Redtenbacher, 1868 [ACCEPTED SPECIES 9820:8YWH6 nidx=null]
Canthon (Canthon) ornatus
 - Canthon (Canthon) ornatus Redtenbacher, 1867 [ACCEPTED SPECIES 9817:QP87 nidx=null]
 + Canthon (Canthon) ornatus Redtenbacher, 1868 [ACCEPTED SPECIES 9820:8YWHB nidx=null]
Canthon (Canthon) ornatus ornatus
 - Canthon (Canthon) ornatus ornatus Redtenbacher, 1867 [ACCEPTED SUBSPECIES 9817:7ZB8Q nidx=null]
 + Canthon (Canthon) ornatus ornatus Redtenbacher, 1868 [ACCEPTED SUBSPECIES 9820:8YXCP nidx=null]
Canthon (Canthon) quadripunctatus
 - Canthon (Canthon) quadripunctatus Redtenbacher, 1867 [ACCEPTED SPECIES 9817:QP8B nidx=null]
 + Canthon (Canthon) quadripunctatus Redtenbacher, 1868 [ACCEPTED SPECIES 9820:8YWHD nidx=null]
Canthon (Goniocanthon) fulgidus
 - Canthon (Goniocanthon) fulgidus Redtenbacher, 1867 [ACCEPTED SPECIES 9817:699HJ nidx=null]
 + Canthon (Goniocanthon) fulgidus Redtenbacher, 1868 [ACCEPTED SPECIES 9820:8YWH8 nidx=null]
Canthon (Goniocanthon) fulgidus fulgidus
 - Canthon (Goniocanthon) fulgidus fulgidus Redtenbacher, 1867 [ACCEPTED SUBSPECIES 9817:7ZB8X nidx=null]
 + Canthon (Goniocanthon) fulgidus fulgidus Redtenbacher, 1868 [ACCEPTED SUBSPECIES 9820:8YXCQ nidx=null]
Canthon cyanopterus
 - Canthon cyanopterus Redtenbacher, 1867 [SYNONYM SPECIES 9817:QPC4 nidx=null parent=699H3]
 + Canthon cyanopterus Redtenbacher, 1868 [SYNONYM SPECIES 9820:8YWH7 nidx=null parent=699H3]
Canthon lamproderes
 - Canthon lamproderes Redtenbacher, 1867 [SYNONYM SPECIES 9817:7TBDY nidx=null parent=7ZB8V]
 + Canthon lamproderes Redtenbacher, 1868 [SYNONYM SPECIES 9820:8YWH9 nidx=null parent=7ZB8V]
Canthon puncticollis
 - Canthon puncticollis Redtenbacher, 1867 [SYNONYM SPECIES 9817:5X9GR nidx=null parent=QND2]
 + Canthon puncticollis Redtenbacher, 1868 [SYNONYM SPECIES 9820:8YWHC nidx=null parent=QND2]
Capitella gracilis
 - Capitella gracilis (Verrill, 1880) [ACCEPTED SPECIES 9817:QQDS nidx=null]
 + Capitella gracilis (Verrill, 1879) [ACCEPTED SPECIES 9820:8YVQ9 nidx=null]
Cardium pseudocatillus
 - Cardium pseudocatillus Barbot de Marny, 1869 [SYNONYM SPECIES 9817:7QKKD nidx=null parent=7STVQ]
 + Cardium pseudocatillus Abich, 1869 [SYNONYM SPECIES 9820:8Z544 nidx=null parent=8Z74K]
Catapicephala sinica
 - Catapicephala sinica Fan, 1965 [SYNONYM SPECIES 9817:886MZ nidx=null parent=8BC7N]
 + Catapicephala sinica Fan, 1965 [ACCEPTED SPECIES 9820:RSD2 nidx=null]
Catocha crassitarsis
 - Catocha crassitarsis Wulp, 1874 [SYNONYM SPECIES 9817:69FM8 nidx=null parent=69FM7]
 + Catocha crassitarsis Wulp, 1875 [SYNONYM SPECIES 9820:8YRTQ nidx=null parent=69FM7]
Cavolinia pulsata
 - Cavolinia pulsata van der Spoel, 1967 [SYNONYM SPECIES 9817:RYCL nidx=null parent=RYCX]
 + Cavolinia pulsata van der Spoel, 1969 [SYNONYM SPECIES 9820:8YVT6 nidx=null parent=RYCX]
Cebudonus poppeorum
 - Cebudonus poppeorum P.K.L. Ng, 2014 [ACCEPTED SPECIES 9817:RYYN nidx=null]
 + Cebudonus poppeorum PKL Ng, 2014 [ACCEPTED SPECIES 9820:8YVT7 nidx=null]
Cecidomyia brassicae
 - Cecidomyia brassicae Winnertz, 1853 [SYNONYM SPECIES 9817:8BC9K nidx=null parent=8H2VQ]
 + Cecidomyia brassicae (Macquart, 1848) [ACCEPTED SPECIES 9820:8YRV4 nidx=null]
Cecidomyia eupatorii
 - Cecidomyia eupatorii Cook, 1909 [ACCEPTED SPECIES 9817:RZ93 nidx=null]
 + Cecidomyia eupatorii Felt, 1907 [SYNONYM SPECIES 9820:8YRV9 nidx=null parent=6Q37T]
Cecidomyia tortilis
 - Cecidomyia tortilis Gagné, 1978 [ACCEPTED SPECIES 9817:RZGY nidx=null]
 + Cecidomyia tortilis Bremi, 1847 [SYNONYM SPECIES 9820:8YRW2 nidx=null parent=346X4]
Celyphus (Celyphus) dohrni
 - Celyphus (Celyphus) dohrni Bigot, 1881 [ACCEPTED SPECIES 9817:8BCM7 nidx=null]
 + Celyphus (Celyphus) dohrni Bigot, 1880 [ACCEPTED SPECIES 9820:8YRW9 nidx=null]
Celyphus galamensis
 - Celyphus galamensis Bigot, 1879 [SYNONYM SPECIES 9817:886W4 nidx=null parent=8F3DH]
 + Celyphus galamensis Bigot, 1878 [SYNONYM SPECIES 9820:8YRWF nidx=null parent=8F3DH]
Cephalispa azurea
 - Cephalispa azurea Couri, Pont & Penny, 2006 [SYNONYM SPECIES 9817:8875F nidx=null parent=8BCNZ]
 + Cephalispa azurea Couri, Pont & Penny, 2006 [ACCEPTED SPECIES 9820:SCKT nidx=null]
Cephalispa curta
 - Cephalispa curta Couri, Pont & Penny, 2006 [SYNONYM SPECIES 9817:8875G nidx=null parent=8BCP2]
 + Cephalispa curta Couri, Pont & Penny, 2006 [ACCEPTED SPECIES 9820:SCL3 nidx=null]
Cephenemyia macrotis
 - Cephenemyia macrotis Brauer, 1863 [ACCEPTED SPECIES 9817:87VF6 nidx=null]
 + Cephenemyia macrotis Bau, 1928 [SYNONYM SPECIES 9820:SF4D nidx=null parent=SF4C]
Ceracia majorina
 - Ceracia majorina (Wulp, 1891) [ACCEPTED SPECIES 9817:SFZ8 nidx=null]
 + Ceracia majorina (Wulp, 1890) [ACCEPTED SPECIES 9820:8YRX2 nidx=null]
Ceratophysella lucifuga
 - Ceratophysella lucifuga (Packard, 1888) [ACCEPTED SPECIES 9817:SP3Q nidx=null]
 + Ceratophysella lucifuga (Packard, 1886) [ACCEPTED SPECIES 9820:8YWTT nidx=null]
Ceratopogon longicornis
 - Ceratopogon longicornis Keilbach, 1982 [PROVISIONALLY_ACCEPTED SPECIES 9817:887RC nidx=null]
 + Ceratopogon longicornis Ewen & Saunders, 1958 [AMBIGUOUS_SYNONYM SPECIES 9820:8YRY2 nidx=null parent=JKT8]
Ceratopogon myrmecophilus
 - Ceratopogon myrmecophilus Egger, 1863 [SYNONYM SPECIES 9817:8BDFX nidx=null parent=8C64X]
 + Ceratopogon myrmecophilus Egger, 1864 [SYNONYM SPECIES 9820:8YRY5 nidx=null parent=8YT42]
Ceratopogon pectinatus
 - Ceratopogon pectinatus Keilbach, 1982 [ACCEPTED SPECIES 9817:8BDGY nidx=null]
 + Ceratopogon pectinatus Macfie, 1939 [SYNONYM SPECIES 9820:8YRY6 nidx=null parent=JKWC]
Ceratopogon pilosus
 - Ceratopogon pilosus Keilbach, 1982 [ACCEPTED SPECIES 9817:87VMY nidx=null]
 + Ceratopogon pilosus Coquillett, 1902 [SYNONYM SPECIES 9820:8YRY7 nidx=null parent=8C662]
Ceratopogon terminalis
 - Ceratopogon terminalis Keilbach, 1982 [ACCEPTED SPECIES 9817:8BDK7 nidx=null]
 + Ceratopogon terminalis Coquillett, 1904 [SYNONYM SPECIES 9820:8YRYB nidx=null parent=4DV7S]
Ceratopogon terrea
 - Ceratopogon terrea Meigen, 1818 [SYNONYM SPECIES 9817:8BDK8 nidx=null parent=8D5NH]
 + Ceratopogon terrea Wiedemann, 1818 [SYNONYM SPECIES 9820:8YRYC nidx=null parent=8YVF2]
Ceratrimeria yasumatsui
 - Ceratrimeria yasumatsui (Uchida, 1950) [ACCEPTED SPECIES 9817:SQQT nidx=null]
 + Ceratrimeria yasumatsui (Uchida, 1940) [ACCEPTED SPECIES 9820:8Z59N nidx=null]
Cerdistus australis
 - Cerdistus australis Lehr, 1967 [PROVISIONALLY_ACCEPTED SPECIES 9817:69LP2 nidx=null]
 + Cerdistus australis Ricardo, 1918 [AMBIGUOUS_SYNONYM SPECIES 9820:5XLQ8 nidx=null parent=69LQ8]
Cerithiopsis fortior
 - Cerithiopsis fortior Carpenter, 1864 [SYNONYM SPECIES 9817:SYTX nidx=null parent=3VDH2]
 + Cerithiopsis fortior Carpenter, 1865 [SYNONYM SPECIES 9820:8YVZ5 nidx=null parent=3VDH2]
Cerotelion boracensis
 - Cerotelion boracensis Lane, 1950 [SYNONYM SPECIES 9817:8886J nidx=null parent=8BF8T]
 + Cerotelion boracensis (Lane, 1950) [ACCEPTED SPECIES 9820:69N7V nidx=null]
Cerotelion dureti
 - Cerotelion dureti Lane, 1958 [SYNONYM SPECIES 9817:8886K nidx=null parent=8BF8Z]
 + Cerotelion dureti (Lane, 1958) [ACCEPTED SPECIES 9820:T4LG nidx=null]
Cerotelion enderleini
 - Cerotelion enderleini Lane, 1948 [SYNONYM SPECIES 9817:8886L nidx=null parent=8BF8V]
 + Cerotelion enderleini (Lane, 1948) [ACCEPTED SPECIES 9820:T4LH nidx=null]
Cerotelion flavicornis
 - Cerotelion flavicornis Freeman, 1951 [SYNONYM SPECIES 9817:8886M nidx=null parent=8BF8W]
 + Cerotelion flavicornis (Freeman, 1951) [ACCEPTED SPECIES 9820:T4LJ nidx=null]
Cerotelion funereus
 - Cerotelion funereus Freeman, 1951 [SYNONYM SPECIES 9817:8886N nidx=null parent=8BF8X]
 + Cerotelion funereus (Freeman, 1951) [ACCEPTED SPECIES 9820:T4LL nidx=null]
Cerotelion nigricans
 - Cerotelion nigricans Lane, 1948 [SYNONYM SPECIES 9817:8886P nidx=null parent=8BF8Y]
 + Cerotelion nigricans (Lane, 1948) [ACCEPTED SPECIES 9820:T4LS nidx=null]
Chaetoceros densus
 - Chaetoceros densus (Cleve) Cleve [ACCEPTED SPECIES 9817:8W7J9 nidx=null]
 + Chaetoceros densus (Cleve) Cleve [ACCEPTED SPECIES 9820:8YW2H nidx=null]
Chaetogaster orientalis
 - Chaetogaster orientalis Stephenson, 1910 [SYNONYM SPECIES 9817:5XNNY nidx=null parent=69NMP]
 + Chaetogaster orientalis Stephenson, 1909 [SYNONYM SPECIES 9820:8YW34 nidx=null parent=69NMP]
Chaetogaster pellucidus
 - Chaetogaster pellucidus Imhof, 1888 [SYNONYM SPECIES 9817:5XNNS nidx=null parent=69NMP]
 + Chaetogaster pellucidus Walton, 1906 [SYNONYM SPECIES 9820:8YRZF nidx=null parent=69NMP]
Chamaesyrphus lusitanicus
 - Chamaesyrphus lusitanicus Mik [ACCEPTED SPECIES 9817:888LZ nidx=null]
 + Chamaesyrphus lusitanicus Mik, 1898 [SYNONYM SPECIES 9820:TLFK nidx=null parent=8ZPFS]
Cheilosia honesta
 - Cheilosia honesta Rondani [ACCEPTED SPECIES 9817:888RQ nidx=null]
 + Cheilosia honesta Rondani, 1868 [SYNONYM SPECIES 9820:TSNB nidx=null parent=TSHW]
Cheilosia latifacies
 - Cheilosia latifacies Loew [ACCEPTED SPECIES 9817:888RV nidx=null]
 + Cheilosia latifacies Loew, 1857 [SYNONYM SPECIES 9820:TSPN nidx=null parent=TSPL]
Cheilosia subarctica
 - Cheilosia subarctica Hellén, 1949 [ACCEPTED SPECIES 9817:888SV nidx=null]
 + Cheilosia subarctica Hellén, 1955 [SYNONYM SPECIES 9820:TSWY nidx=null parent=TSVD]
Chinapotamon clarkei
 - Chinapotamon clarkei P.K.L. Ng, 2017 [ACCEPTED SPECIES 9817:5XS4Y nidx=null]
 + Chinapotamon clarkei PKL Ng, 2017 [ACCEPTED SPECIES 9820:8YW4Y nidx=null]
Chinapotamon dashiwei
 - Chinapotamon dashiwei P.K.L. Ng, 2017 [ACCEPTED SPECIES 9817:5Y3SY nidx=null]
 + Chinapotamon dashiwei PKL Ng, 2017 [ACCEPTED SPECIES 9820:8YW4Z nidx=null]
Chironomus albidus
 - Chironomus albidus Konstantinov, 1956 [ACCEPTED SPECIES 9817:69T8W nidx=null]
 + Chironomus albidus Meigen, 1818 [SYNONYM SPECIES 9820:8YS37 nidx=null parent=84X]
Chironomus bonaerensis
 - Chironomus bonaerensis Lynch Arribálzaga, 1881 [ACCEPTED SPECIES 9817:8895D nidx=null]
 + Chironomus bonaerensis Lynch Arribálzaga, 1881 [SYNONYM SPECIES 9820:69T94 nidx=null parent=69V53]
Chironomus brunneus
 - Chironomus brunneus Freeman, 1954 [ACCEPTED SPECIES 9817:5Y597 nidx=null]
 + Chironomus brunneus Walker, 1848 [SYNONYM SPECIES 9820:5Y58V nidx=null parent=434T5]
Chironomus cristatus
 - Chironomus cristatus Fabricius [ACCEPTED SPECIES 9817:87WMY nidx=null]
 + Chironomus cristatus Fabricius, 1805 [SYNONYM SPECIES 9820:69SYD nidx=null parent=8BGDB]
Chironomus gmundensis
 - Chironomus gmundensis Egger, 1863 [SYNONYM SPECIES 9817:5Y6NY nidx=null parent=73HSS]
 + Chironomus gmundensis Egger, 1864 [SYNONYM SPECIES 9820:8YS3H nidx=null parent=73HSS]
Chironomus laetus
 - Chironomus laetus Belyanina & Filinkova, 1996 [ACCEPTED SPECIES 9817:5XV2P nidx=null]
 + Chironomus laetus Meigen, 1818 [SYNONYM SPECIES 9820:8YS3M nidx=null parent=8DG98]
Chironomus longicornis
 - Chironomus longicornis Keilbach, 1982 [ACCEPTED SPECIES 9817:8897J nidx=null]
 + Chironomus longicornis Kieffer, 1908 [SYNONYM SPECIES 9820:69V39 nidx=null parent=69T97]
Chironomus monilis
 - Chironomus monilis Keilbach, 1982 [ACCEPTED SPECIES 9817:8897Z nidx=null]
 + Chironomus monilis Freeman, 1954 [SYNONYM SPECIES 9820:5XV47 nidx=null parent=3JRLS]
Chironomus monochromus
 - Chironomus monochromus Wulp, 1874 [SYNONYM SPECIES 9817:87WPT nidx=null parent=4CPLT]
 + Chironomus monochromus Wulp, 1875 [SYNONYM SPECIES 9820:8YS3N nidx=null parent=4CPLT]
Chironomus quadripunctatus
 - Chironomus quadripunctatus Kieffer, 1917 [ACCEPTED SPECIES 9817:87WR6 nidx=null]
 + Chironomus quadripunctatus Malloch, 1915 [SYNONYM SPECIES 9820:8YS3T nidx=null parent=5869D]
Chironomus separatus
 - Chironomus separatus Keilbach, 1982 [ACCEPTED SPECIES 9817:8899N nidx=null]
 + Chironomus separatus Walker, 1856 [SYNONYM SPECIES 9820:5Y6TS nidx=null parent=6RJQD]
Chironomus tenuicaudatus
 - Chironomus tenuicaudatus Goetghebuer, 1950 [ACCEPTED SPECIES 9817:5Y75K nidx=null]
 + Chironomus tenuicaudatus Malloch, 1915 [SYNONYM SPECIES 9820:8YS3Y nidx=null parent=4CPMH]
Chironomus transvaalensis
 - Chironomus transvaalensis Kieffer, 1908 [ACCEPTED SPECIES 9817:5Y6DX nidx=null]
 + Chironomus transvaalensis Kieffer, 1923 [SYNONYM SPECIES 9820:8YS35 nidx=null parent=8BGF8]
Chironomus trinotatus
 - Chironomus trinotatus Wulp, 1874 [SYNONYM SPECIES 9817:889BD nidx=null parent=8DGFC]
 + Chironomus trinotatus Wulp, 1875 [SYNONYM SPECIES 9820:8YS43 nidx=null parent=8DGFC]
Chironomus tristis
 - Chironomus tristis Wiedemann, 1818 [SYNONYM SPECIES 9817:889BG nidx=null parent=8BGD7]
 + Chironomus tristis Meigen, 1818 [SYNONYM SPECIES 9820:8YS44 nidx=null parent=8BGD7]
Chlorops angustifrons
 - Chlorops angustifrons Becker, 1910 [ACCEPTED SPECIES 9817:69XBT nidx=null]
 + Chlorops angustifrons Meigen, 1830 [SYNONYM SPECIES 9820:5Y9C5 nidx=null parent=6YQSW]
Chlorops flavus
 - Chlorops flavus (Macquart, 1835) [PROVISIONALLY_ACCEPTED SPECIES 9817:5Y9CP nidx=null]
 - Chlorops flavus Spencer, 1986 [PROVISIONALLY_ACCEPTED SPECIES 9817:69XCP nidx=null]
 + Chlorops flavus Wiedemann, 1830 [AMBIGUOUS_SYNONYM SPECIES 9820:8YS4Q nidx=null parent=4HHMX]
Chlorops fuscipennis
 - Chlorops fuscipennis (Meijere, 1906) [ACCEPTED SPECIES 9817:889HR nidx=null]
 + Chlorops fuscipennis Thomson, 1869 [SYNONYM SPECIES 9820:5Y9CZ nidx=null parent=6HKKX]
Chlorops meigenii
 - Chlorops meigenii Loew, 1866 [ACCEPTED SPECIES 9817:5XXFM nidx=null]
 + Chlorops meigenii Fallén, 1823 [SYNONYM SPECIES 9820:5Y9FM nidx=null parent=8BDWX]
Chlorops obscuripennis
 - Chlorops obscuripennis Becker, 1916 [ACCEPTED SPECIES 9817:69XF4 nidx=null]
 + Chlorops obscuripennis Cole & Lovett, 1921 [SYNONYM SPECIES 9820:5XXF9 nidx=null parent=5Y9F4]
Chortophila pilosella
 - Chortophila pilosella Rondani, 1877 [SYNONYM SPECIES 9817:889MY nidx=null parent=8D6FV]
 + Chortophila pilosella Rondani, 1877 [SYNONYM SPECIES 9820:5YG5J nidx=null parent=6TN8G]
Chortophila vilis
 - Chortophila vilis Stein, 1920 [SYNONYM SPECIES 9817:87X8S nidx=null parent=8BRJH]
 + Chortophila vilis Stein, 1920 [SYNONYM SPECIES 9820:5YFT9 nidx=null parent=34G3K]
Chromodoris reticulata
 - Chromodoris reticulata (Pease, 1866) [ACCEPTED SPECIES 9817:5YHC5 nidx=null]
 + Chromodoris reticulata (Pease, 1860) [ACCEPTED SPECIES 9820:8YW6X nidx=null]
Chrysochlora baccoides
 - Chrysochlora baccoides Rondani [ACCEPTED SPECIES 9817:87XGC nidx=null]
 + Chrysochlora baccoides Rondani, 1875 [SYNONYM SPECIES 9820:5YMCC nidx=null parent=3KZYJ]
Chrysogaster cupreus
 - Chrysogaster cupreus Eversmann, 1834 [ACCEPTED SPECIES 9817:8BH9Q nidx=null]
 + Chrysogaster cupreus Macquart, 1850 [SYNONYM SPECIES 9820:8YS6N nidx=null parent=4PJPQ]
Chrysops excitans
 - Chrysops excitans Loew [ACCEPTED SPECIES 9817:87XL8 nidx=null]
 + Chrysops excitans Walker, 1850 [SYNONYM SPECIES 9820:5YS9W nidx=null parent=8BHGV]
Chrysops tardus
 - Chrysops tardus Wiedemann [ACCEPTED SPECIES 9817:889W9 nidx=null]
 + Chrysops tardus Wiedemann, 1828 [SYNONYM SPECIES 9820:5YRNB nidx=null parent=5Z3P5]
Chrysotus annulatus
 - Chrysotus annulatus Van Duzee, 1924 [ACCEPTED SPECIES 9817:V2PL nidx=null]
 + Chrysotus annulatus Macquart, 1842 [SYNONYM SPECIES 9820:8YS7Y nidx=null parent=8BRZ3]
Chrysotus apicalis
 - Chrysotus apicalis Keilbach, 1982 [ACCEPTED SPECIES 9817:88B3P nidx=null]
 + Chrysotus apicalis Parent, 1932 [AMBIGUOUS_SYNONYM SPECIES 9820:V2PP nidx=null parent=V2WT]
 + Chrysotus apicalis Aldrich, 1896 [AMBIGUOUS_SYNONYM SPECIES 9820:V2PQ nidx=null parent=8BHPG]
Chrysotus bicolor
 - Chrysotus bicolor Vanschuytbroeck, 1951 [ACCEPTED SPECIES 9817:V2QD nidx=null]
 + Chrysotus bicolor Macquart, 1828 [SYNONYM SPECIES 9820:8YS7Z nidx=null parent=7BXMG]
Chrysotus ciliatus
 - Chrysotus ciliatus Keilbach, 1982 [ACCEPTED SPECIES 9817:87XP8 nidx=null]
 + Chrysotus ciliatus Malloch, 1914 [AMBIGUOUS_SYNONYM SPECIES 9820:V2R7 nidx=null parent=V2R6]
 + Chrysotus ciliatus (Becker, 1922) [ACCEPTED SPECIES 9820:8YS82 nidx=null]
Chrysotus magnicornis
 - Chrysotus magnicornis Van Duzee, 1924 [ACCEPTED SPECIES 9817:V2V3 nidx=null]
 + Chrysotus magnicornis Parent, 1928 [AMBIGUOUS_SYNONYM SPECIES 9820:V2V4 nidx=null parent=V2TC]
 + Chrysotus magnicornis Zetterstedt, 1843 [AMBIGUOUS_SYNONYM SPECIES 9820:8YS85 nidx=null parent=56NBN]
Chrysotus vicinus
 - Chrysotus vicinus Parent, 1933 [ACCEPTED SPECIES 9817:V2Z5 nidx=null]
 + Chrysotus vicinus (Becker, 1922) [ACCEPTED SPECIES 9820:8YS89 nidx=null]
Chuspilepia
 - Chuspilepia [ACCEPTED GENUS 9817:89PWX nidx=null]
 + Chuspilepia [ACCEPTED SUBGENUS 9820:8YQC3 nidx=null]
Cirratulus africanus
 - Cirratulus africanus Gravier, 1906 [ACCEPTED SPECIES 9817:VGJ5 nidx=null]
 + Cirratulus africanus Gravier, 1905 [ACCEPTED SPECIES 9820:8YW8F nidx=null]
Cirriformia saxatilis
 - Cirriformia saxatilis (Gravier, 1906) [ACCEPTED SPECIES 9817:VGZH nidx=null]
 + Cirriformia saxatilis (Gravier, 1905) [ACCEPTED SPECIES 9820:8YW8G nidx=null]
Cissampelos pareira mucronata
 - Cissampelos pareira mucronata (A. Rich.) Engl. [SYNONYM INFRASPECIFIC_NAME 9817:5DVK4 nidx=null parent=VJXT]
 + Cissampelos pareira mucronata (A. Rich.) Engl. [SYNONYM INFRASPECIFIC_NAME 9820:8Z5ZD nidx=null parent=VJXT]
Citrogramma australe
 - Citrogramma australe Thompson, 2012 [ACCEPTED SPECIES 9817:8BHYW nidx=null]
 + Citrogramma australe Mengual, 2012 [ACCEPTED SPECIES 9820:8YS8N nidx=null]
Citrogramma currani
 - Citrogramma currani Ghorpade, 2012 [ACCEPTED SPECIES 9817:8BHYY nidx=null]
 + Citrogramma currani Mengual, 2012 [ACCEPTED SPECIES 9820:8YS8P nidx=null]
Citrogramma distinctum
 - Citrogramma distinctum Thompson, 2012 [ACCEPTED SPECIES 9817:8BHYZ nidx=null]
 + Citrogramma distinctum Mengual, 2012 [ACCEPTED SPECIES 9820:8YS8Q nidx=null]
Citrogramma schlingeri
 - Citrogramma schlingeri Thompson, 2012 [ACCEPTED SPECIES 9817:8BHZB nidx=null]
 + Citrogramma schlingeri Mengual, 2012 [ACCEPTED SPECIES 9820:8YS8R nidx=null]
Claparediella longicapitatum
 - Claparediella longicapitatum (Allgen, 1932) [SYNONYM SPECIES 9817:8W7XC nidx=null parent=8GH8C]
 + Claparediella longicapitatum (Allgen, 1932) Filipjev, 1934 [SYNONYM SPECIES 9820:8YW9J nidx=null parent=8GH8C]
Clematis apiifolia obtusidentata
 - Clematis apiifolia obtusidentata Rehder & E. H. Wilson [SYNONYM INFRASPECIFIC_NAME 9817:5DVTF nidx=null parent=5N5D5]
 + Clematis apiifolia obtusidentata Rehder & E. H. Wilson [SYNONYM INFRASPECIFIC_NAME 9820:8Z5ZF nidx=null parent=5N5D5]
Clephydroneura xanthopa
 - Clephydroneura xanthopa (Wiedemann, 1819) [ACCEPTED SPECIES 9817:W33V nidx=null]
 + Clephydroneura xanthopa Oldroyd, 1975 [SYNONYM SPECIES 9820:W33W nidx=null parent=W33X]
Clista iners
 - Clista iners Meigen, 1838 [SYNONYM SPECIES 9817:8BJCC nidx=null parent=6ZV9X]
 + Clista iners Meigen, 1835 [SYNONYM SPECIES 9820:8YS95 nidx=null parent=6ZV9X]
Clitodoca nigripennis
 - Clitodoca nigripennis Enderlein [ACCEPTED SPECIES 9817:88BMY nidx=null]
 + Clitodoca nigripennis Enderlein, 1924 [SYNONYM SPECIES 9820:W96H nidx=null parent=W96G]
Coenosia canescens
 - Coenosia canescens Stein, 1901 [ACCEPTED SPECIES 9817:87YVS nidx=null]
 + Coenosia canescens Stein, 1898 [SYNONYM SPECIES 9820:5ZL6T nidx=null parent=5ZKTN]
Coenosia laeta
 - Coenosia laeta Huckett, 1934 [ACCEPTED SPECIES 9817:WV4T nidx=null]
 + Coenosia laeta Wiedemann, 1830 [SYNONYM SPECIES 9820:8YS9W nidx=null parent=8B4YL]
Coenosia longiseta
 - Coenosia longiseta Gaminara, 1930 [ACCEPTED SPECIES 9817:WV5C nidx=null]
 + Coenosia longiseta Stein, 1906 [AMBIGUOUS_SYNONYM SPECIES 9820:WV5B nidx=null parent=WV83]
 + Coenosia longiseta Zielke, 1971 [AMBIGUOUS_SYNONYM SPECIES 9820:5ZL9C nidx=null parent=WV35]
Coenosia multipunctata
 - Coenosia multipunctata Eversmann, 1834 [ACCEPTED SPECIES 9817:88BY4 nidx=null]
 + Coenosia multipunctata Stein, 1900 [SYNONYM SPECIES 9820:WV6J nidx=null parent=5ZKYJ]
Coenosia nigra
 - Coenosia nigra Wei, 2006 [ACCEPTED SPECIES 9817:88BY5 nidx=null]
 + Coenosia nigra Meigen, 1826 [SYNONYM SPECIES 9820:WV6W nidx=null parent=5ZKSM]
Coenosia rufitibia
 - Coenosia rufitibia Stein, 1898 [ACCEPTED SPECIES 9817:87YZD nidx=null]
 + Coenosia rufitibia Stein, 1919 [SYNONYM SPECIES 9820:8YSB9 nidx=null parent=46FZ7]
Coenosia testacea
 - Coenosia testacea (Robineau-Desvoidy, 1830) [ACCEPTED SPECIES 9817:WVC2 nidx=null]
 + Coenosia testacea Gimmerthal, 1834 [SYNONYM SPECIES 9820:8YSBB nidx=null parent=44XD9]
Colymmatops
 - Colymmatops Peters, 1855 [ACCEPTED GENUS 9817:84MH7 nidx=null]
 + Colymmatops Peters, 1854 [ACCEPTED GENUS 9820:8YQZT nidx=null]
Conchapelopia amamiaurea
 - Conchapelopia amamiaurea Sasa, 1991 [ACCEPTED SPECIES 9817:XK6R nidx=null]
 + Conchapelopia amamiaurea Sasa, 1990 [ACCEPTED SPECIES 9820:8YSBM nidx=null]
Conchapelopia okisimilis
 - Conchapelopia okisimilis Sasa, 1991 [ACCEPTED SPECIES 9817:XK7G nidx=null]
 + Conchapelopia okisimilis Sasa, 1990 [ACCEPTED SPECIES 9820:8YSBN nidx=null]
Conchapelopia seiryusetea
 - Conchapelopia seiryusetea Sasa, Suzuki & Sakai, 1998 [ACCEPTED SPECIES 9817:XK7P nidx=null]
 + Conchapelopia seiryusetea Sasa, Suzuki & Sakai, 1999 [ACCEPTED SPECIES 9820:8YSBP nidx=null]
Coneuplecta scalarina
 - Coneuplecta scalarina (L. Pfeiffer, 1851) [ACCEPTED SPECIES 9817:5ZTGH nidx=null]
 + Coneuplecta scalarina (L. Pfeiffer, 1852) [ACCEPTED SPECIES 9820:8YWLB nidx=null]
Coniomastix montana
 - Coniomastix montana Enderlein, 1934 [SYNONYM SPECIES 9817:8BK22 nidx=null parent=4Z9RP]
 + Coniomastix montana Enderlein, 1933 [SYNONYM SPECIES 9820:8YSBV nidx=null parent=8YW6H]
Conops (Asiconops) aureomaculatus
 - Conops (Asiconops) aureomaculatus Kröber, 1939 [ACCEPTED SPECIES 9817:8BK3K nidx=null]
 + Conops (Asiconops) aureomaculatus Kröber, 1933 [ACCEPTED SPECIES 9820:8YSBW nidx=null]
Conops (Asiconops) elegans
 - Conops (Asiconops) elegans Meigen, 1824 [ACCEPTED SPECIES 9817:8BK42 nidx=null]
 + Conops (Asiconops) elegans Meigen, 1804 [ACCEPTED SPECIES 9820:8YSBZ nidx=null]
Conops (Conops) elegans
 - Conops (Conops) elegans Meigen, 1824 [ACCEPTED SPECIES 9817:8BK63 nidx=null]
 + Conops (Conops) elegans Meigen, 1804 [ACCEPTED SPECIES 9820:8YSBY nidx=null]
Conops elegans
 - Conops elegans Meigen, 1824 [ACCEPTED SPECIES 9817:XSM6 nidx=null]
 + Conops elegans Meigen, 1804 [SYNONYM SPECIES 9820:8YSBX nidx=null parent=8YSBY]
Conops variegata
 - Conops variegata (Olivier, 1811) [ACCEPTED SPECIES 9817:8BKC4 nidx=null]
 + Conops variegata Meigen, 1824 [SYNONYM SPECIES 9820:8YSCG nidx=null parent=4HHKG]
Conradia minuta
 - Conradia minuta Golikov & Starobogatov, 1976 [SYNONYM SPECIES 9817:XV3P nidx=null parent=6K66X]
 + Conradia minuta Golikov & Starobogatov, 1986 [SYNONYM SPECIES 9820:8YWLF nidx=null parent=6K66X]
Conus acutimarginatus
 - Conus acutimarginatus G. B. Sowerby II, 1866 [SYNONYM SPECIES 9817:7QSN4 nidx=null parent=7QS5N]
 + Conus acutimarginatus G. B. Sowerby II, 1866 [SYNONYM SPECIES 9820:5ZVY7 nidx=null parent=XJZD]
Conus rattus var. tahitiensis
 - Conus rattus var. tahitiensis Dautzenberg, 1933 [SYNONYM VARIETY 9817:5N8SH nidx=null parent=XY64]
 + Conus rattus var. tahitiensis Dautzenberg, 1932 [SYNONYM VARIETY 9820:8YZS6 nidx=null parent=XY64]
Coquillettomyia combinata
 - Coquillettomyia combinata Fedotova, 2005 [ACCEPTED SPECIES 9817:Y94H nidx=null]
 + Coquillettomyia combinata Fedotova, 2006 [ACCEPTED SPECIES 9820:8YSCW nidx=null]
Coquillettomyia primorskii
 - Coquillettomyia primorskii Fedotova, 2005 [ACCEPTED SPECIES 9817:Y956 nidx=null]
 + Coquillettomyia primorskii Fedotova, 2006 [ACCEPTED SPECIES 9820:8YSCX nidx=null]
Corbicula baudoni
 - Corbicula baudoni Morlet, 1886 [ACCEPTED SPECIES 9817:7QT9K nidx=null]
 + Corbicula baudoni Morlet, 1887 [ACCEPTED SPECIES 9820:8YWPG nidx=null]
Cordobaia bembezarensis
 - Cordobaia bembezarensis Simón, Bach & Gazu, 1986 [SYNONYM SPECIES 9817:YC4B nidx=null parent=5WXMS]
 + Cordobaia bembezarensis Simón, JC, Bach, C & Gaju, M, 1987 [SYNONYM SPECIES 9820:8Z5W6 nidx=null parent=5WXMS]
 + Cordobaia bembezarensis Bretfeld, G, 1999 [SYNONYM SPECIES 9820:8Z5W7 nidx=null parent=5WXMS]
Cordylura bilineata
 - Cordylura bilineata Meigen, 1838 [SYNONYM SPECIES 9817:88CW3 nidx=null parent=8H3DB]
 + Cordylura bilineata Meigen, 1838 [SYNONYM SPECIES 9820:YD3K nidx=null parent=YBXC]
Cordylura liturata
 - Cordylura liturata Wiedemann, 1826 [SYNONYM SPECIES 9817:8BL2R nidx=null parent=6RZYF]
 + Cordylura liturata Meigen, 1826 [SYNONYM SPECIES 9820:8YSD2 nidx=null parent=8YV8B]
Corydalis densiflora subsp. densiflora
 - Corydalis densiflora subsp. densiflora [ACCEPTED SUBSPECIES 9817:8YJDS nidx=null]
 + Corydalis densiflora subsp. densiflora [ACCEPTED SUBSPECIES 9820:5GMG7 nidx=null]
Corynoneura clavicornis
 - Corynoneura clavicornis Kieffer, 1925 [ACCEPTED SPECIES 9817:YRCQ nidx=null]
 + Corynoneura clavicornis Kieffer, 1911 [SYNONYM SPECIES 9820:8YSD9 nidx=null parent=56GJZ]
Corynoneura pumila
 - Corynoneura pumila Wulp, 1874 [ACCEPTED SPECIES 9817:6B6NM nidx=null]
 + Corynoneura pumila Wulp, 1875 [ACCEPTED SPECIES 9820:8YSDC nidx=null]
Corynoneura seiryuresea
 - Corynoneura seiryuresea Sasa, Suzuki & Sakai, 1998 [ACCEPTED SPECIES 9817:6B6P8 nidx=null]
 + Corynoneura seiryuresea Sasa, Suzuki & Sakai, 1988 [ACCEPTED SPECIES 9820:8YSDD nidx=null]
Coscaronia atrogonia
 - Coscaronia atrogonia Cortés, 1979 [SYNONYM SPECIES 9817:88D6K nidx=null parent=8BLGV]
 + Coscaronia atrogonia Cortés, 1979 [ACCEPTED SPECIES 9820:6B6GK nidx=null]
Coscaronia propinqua
 - Coscaronia propinqua Cortés, 1979 [SYNONYM SPECIES 9817:88D6L nidx=null parent=8BLGW]
 + Coscaronia propinqua Cortés, 1979 [ACCEPTED SPECIES 9820:6B6GJ nidx=null]
Costatoria submultistriata
 - Costatoria submultistriata (C.-Z. Chen, 1976) [ACCEPTED SPECIES 9817:YWGB nidx=null]
 + Costatoria submultistriata (C.-Z. Chen, Q.-H. Ma & Z.-M. Zhang, 1974) [ACCEPTED SPECIES 9820:8YWQZ nidx=null]
Cranaothus
 - Cranaothus P.K.L. Ng, 1993 [ACCEPTED GENUS 9817:7P598 nidx=null]
 + Cranaothus PKL Ng, 1993 [ACCEPTED GENUS 9820:8YR2J nidx=null]
Cranaothus deforgesi
 - Cranaothus deforgesi P.K.L. Ng, 1993 [ACCEPTED SPECIES 9817:Z4RD nidx=null]
 + Cranaothus deforgesi PKL Ng, 1993 [ACCEPTED SPECIES 9820:8YWR6 nidx=null]
Crathoplus
 - Crathoplus Blanchard, 1851 [ACCEPTED GENUS 9817:3VD6 nidx=null]
 + Crathoplus Blanchard, 1850 [ACCEPTED GENUS 9820:8YR2L nidx=null]
Cratoscelis striolata
 - Cratoscelis striolata Redtenbacher, 1867 [SYNONYM SPECIES 9817:Z9XH nidx=null parent=GB2Q]
 + Cratoscelis striolata Redtenbacher, 1868 [SYNONYM SPECIES 9820:8YX3S nidx=null parent=GB2Q]
Cribraria cruenta
 - Cribraria cruenta [SYNONYM SPECIES 9817:ZFHQ nidx=null parent=4B9PT]
 + Cribraria cruenta (Gmelin, 1791) [SYNONYM SPECIES 9820:8YWT3 nidx=null parent=4B9PT]
Cricotopus (Cricotopus) seiryubeceus
 - Cricotopus (Cricotopus) seiryubeceus Sasa, Suzuki & Sakai, 1998 [ACCEPTED SPECIES 9817:8BLTY nidx=null]
 + Cricotopus (Cricotopus) seiryubeceus Sasa, Suzuki & Sakai, 1988 [ACCEPTED SPECIES 9820:8YSDM nidx=null]
Cricotopus (Pseudocricotopus) seiryucedeus
 - Cricotopus (Pseudocricotopus) seiryucedeus Sasa, Suzuki & Sakai, 1998 [ACCEPTED SPECIES 9817:8BLVV nidx=null]
 + Cricotopus (Pseudocricotopus) seiryucedeus Sasa, Suzuki & Sakai, 1988 [ACCEPTED SPECIES 9820:8YSDR nidx=null]
Cricotopus parvulus
 - Cricotopus parvulus Meunier, 1916 [ACCEPTED SPECIES 9817:8BLWN nidx=null]
 + Cricotopus parvulus Kieffer, 1909 [SYNONYM SPECIES 9820:8YSF6 nidx=null parent=45MWW]
Cricotopus seiryuabeus
 - Cricotopus seiryuabeus Sasa, Suzuki & Sakai, 1998 [SYNONYM SPECIES 9817:88DNY nidx=null parent=8BLTX]
 + Cricotopus seiryuabeus Sasa, Suzuki & Sakai, 1988 [SYNONYM SPECIES 9820:8YSDK nidx=null parent=8YSDL]
Cricotopus seiryubeceus
 - Cricotopus seiryubeceus Sasa, Suzuki & Sakai, 1998 [SYNONYM SPECIES 9817:88DNZ nidx=null parent=8BLTY]
 + Cricotopus seiryubeceus Sasa, Suzuki & Sakai, 1988 [SYNONYM SPECIES 9820:8YSDN nidx=null parent=8YSDM]
Cricotopus seiryucedeus
 - Cricotopus seiryucedeus Sasa, Suzuki & Sakai, 1998 [SYNONYM SPECIES 9817:88DP2 nidx=null parent=8BLVV]
 + Cricotopus seiryucedeus Sasa, Suzuki & Sakai, 1988 [SYNONYM SPECIES 9820:8YSDQ nidx=null parent=8YSDR]
Cricotopus tamadigitatus
 - Cricotopus tamadigitatus Sasa, 1981 [ACCEPTED SPECIES 9817:ZG94 nidx=null]
 + Cricotopus tamadigitatus Sasa, 1998 [SYNONYM SPECIES 9820:8YSF9 nidx=null parent=8YSF8]
Cryptopygus quadrioculatus
 - Cryptopygus quadrioculatus Wise [ACCEPTED SPECIES 9817:ZZF6 nidx=null]
 + Cryptopygus quadrioculatus (Rapoport, 1963) [ACCEPTED SPECIES 9820:8YX7L nidx=null]
Cryptotrogus sindh
 - Cryptotrogus sindh Montreuil, Keith & Sabatinelli, 2017 [ACCEPTED SPECIES 9817:323DZ nidx=null]
 + Cryptotrogus sindh Montreuil, Keith & Sabatinelli, 2019 [ACCEPTED SPECIES 9820:8YX3T nidx=null]
Ctenocella filiformis
 - Ctenocella filiformis Toeplitz, 1889 [SYNONYM SPECIES 9817:3258X nidx=null parent=39BQ6]
 + Ctenocella filiformis (Toeplitz in Kükenthal, 1919) [SYNONYM SPECIES 9820:8YWVC nidx=null parent=39BQ6]
Ctenocella flagellum
 - Ctenocella flagellum Thomson & Russell, 1910 [SYNONYM SPECIES 9817:3258Z nidx=null parent=39BQ7]
 + Ctenocella flagellum (Johnson, 1863) [SYNONYM SPECIES 9820:3258Y nidx=null parent=39BQ7]
Ctenocella granulata
 - Ctenocella granulata Esper, 1788 [SYNONYM SPECIES 9817:32599 nidx=null parent=7FRFZ]
 + Ctenocella granulata (Esper, 1791) [SYNONYM SPECIES 9820:8YWVD nidx=null parent=8YZHC]
Ctenocella hystrix
 - Ctenocella hystrix Valenciennes, 1855 [SYNONYM SPECIES 9817:3259B nidx=null parent=5BFF4]
 + Ctenocella hystrix (Milne Edwards & Haime, 1857) [SYNONYM SPECIES 9820:8YWVG nidx=null parent=8YZHS]
Ctenocella rigida
 - Ctenocella rigida Toeplitz, 1910 [SYNONYM SPECIES 9817:3259W nidx=null parent=39BQR]
 + Ctenocella rigida (Toeplitz in Kükenthal, 1919) [SYNONYM SPECIES 9820:8YWVJ nidx=null parent=8YX4C]
Ctenopoma multispine
 - Ctenopoma multispine Peters, 1844 [ACCEPTED SPECIES 9817:8V7SC nidx=null]
 + Ctenopoma multispine Peters, 1844 [ACCEPTED SPECIES 9820:8YWVT nidx=null]
Culex (Culiciomyia) cheni
 - Culex (Culiciomyia) cheni [ACCEPTED SPECIES 9817:8H55N nidx=null]
 + Culex (Culiciomyia) cheni Dong, Wang & Lu, 2003 [ACCEPTED SPECIES 9820:8YSFV nidx=null]
Culex calopus
 - Culex calopus Meigen, 1818 [SYNONYM SPECIES 9817:88F5V nidx=null parent=89W72]
 + Culex calopus Wiedemann, 1818 [SYNONYM SPECIES 9820:8YSG5 nidx=null parent=89W72]
Culex maculatus
 - Culex maculatus Humboldt, 1819 [ACCEPTED SPECIES 9817:88FN2 nidx=null]
 + Culex maculatus Meigen, 1804 [SYNONYM SPECIES 9820:32BFT nidx=null parent=89W6D]
Culex minutus
 - Culex minutus Eversmann, 1834 [ACCEPTED SPECIES 9817:88FPX nidx=null]
 + Culex minutus Theobald, 1905 [SYNONYM SPECIES 9820:32BHT nidx=null parent=8BMJH]
Culex molestus
 - Culex molestus Kollar, 1832 [ACCEPTED SPECIES 9817:88362 nidx=null]
 + Culex molestus Wiedemann, 1820 [AMBIGUOUS_SYNONYM SPECIES 9820:32BJ3 nidx=null parent=8DK2G]
 + Culex molestus Forsskål, 1775 [AMBIGUOUS_SYNONYM SPECIES 9820:32BJ4 nidx=null parent=8BMMB]
Culicoides ciliodentatus
 - Culicoides ciliodentatus Khamala, 1991 [ACCEPTED SPECIES 9817:32CCN nidx=null]
 + Culicoides ciliodentatus Khamala & Kettle, 1971 [SYNONYM SPECIES 9820:32CCM nidx=null parent=32CSP]
Culicoides maculatus
 - Culicoides maculatus Zilahi-Sebess, 1936 [ACCEPTED SPECIES 9817:32CV9 nidx=null]
 + Culicoides maculatus Shiraki, 1913 [SYNONYM SPECIES 9820:6BPPT nidx=null parent=8BNQR]
Curtonevra anthomydea
 - Curtonevra anthomydea Bigot, 1888 [SYNONYM SPECIES 9817:32KY2 nidx=null parent=4569L]
 + Curtonevra anthomydea Bigot, 1887 [SYNONYM SPECIES 9820:8YSJ5 nidx=null parent=4569L]
Cutlerensis
 - Cutlerensis Popkov, 1991 [ACCEPTED SUBGENUS 9817:8VYR6 nidx=null]
 + Cutlerensis Popkov, 1991 [ACCEPTED SUBGENUS 9820:7NV2K nidx=null]
Cyclostrema placens
 - Cyclostrema placens (Melvill & Standen, 1901) [SYNONYM SPECIES 9817:8SWNG nidx=null parent=7TD3F]
 + Cyclostrema placens (Melvill & Standen, 1901) [ACCEPTED SPECIES 9820:32Y87 nidx=null]
Cylindromyia aurora
 - Cylindromyia aurora Mesnil, 1983 [ACCEPTED SPECIES 9817:333KJ nidx=null]
 + Cylindromyia aurora Herting, 1983 [ACCEPTED SPECIES 9820:333KH nidx=null]
Cymatium (Monoplex) echo iwakawanum
 - Cymatium (Monoplex) echo iwakawanum sensu Kuroda & Kira Shikama, 1964 [SYNONYM SUBSPECIES 9817:7TT67 nidx=null parent=448YW]
 + Cymatium (Monoplex) echo iwakawanum Kuroda & Kira, 1964 [SYNONYM SUBSPECIES 9820:8YZMP nidx=null parent=448YW]
Cymbiola (Cymbiola) deshayesi
 - Cymbiola (Cymbiola) deshayesi (Reeve, 1854) [SYNONYM SPECIES 9817:336L6 nidx=null parent=336MB]
 + Cymbiola (Cymbiola) deshayesi (Reeve, 1855) [SYNONYM SPECIES 9820:8YWWS nidx=null parent=8YWWT]
Cymbiola deshayesi
 - Cymbiola deshayesi (Reeve, 1854) [ACCEPTED SPECIES 9817:336MB nidx=null]
 + Cymbiola deshayesi (Reeve, 1855) [ACCEPTED SPECIES 9820:8YWWT nidx=null]
Cyphoda heymonsi
 - Cyphoda heymonsi (Börner, 1906) [ACCEPTED SPECIES 9817:6BWNP nidx=null]
 + Cyphoda heymonsi Delamare Deboutteville, 1948 [SYNONYM SPECIES 9820:8Z639 nidx=null parent=8ZMT8]
Cyphodeirus capucinus
 - Cyphodeirus capucinus Nicolet, H, 1842 [AMBIGUOUS_SYNONYM SPECIES 9817:6BWNH nidx=null parent=3TBGS]
 + Cyphodeirus capucinus Salmon, JT, 1964 [AMBIGUOUS_SYNONYM SPECIES 9820:8Z4ZP nidx=null parent=6PCGB]
 + Cyphodeirus capucinus Salmon, JT, 1964 [AMBIGUOUS_SYNONYM SPECIES 9820:8Z4ZQ nidx=null parent=3TBGS]
 + Cyphodeirus capucinus Bourlet, C in Erichson, WP, 1846 [AMBIGUOUS_SYNONYM SPECIES 9820:8Z4ZR nidx=null parent=6PCGB]
 + Cyphodeirus capucinus Bourlet, C, 1845 [AMBIGUOUS_SYNONYM SPECIES 9820:8Z4ZS nidx=null parent=6PCGB]
Cyphoderus bidenticulatus
 - Cyphoderus bidenticulatus Womersley, 1934 [ACCEPTED SPECIES 9817:6BWPH nidx=null]
 + Cyphoderus bidenticulatus (Parona, 1888) [ACCEPTED SPECIES 9820:8Z394 nidx=null]
Cythere costataxi
 - Cythere costataxi ? [SYNONYM SPECIES 9817:8W8N4 nidx=null parent=KDBP]
 + Cythere costataxi ? [SYNONYM SPECIES 9820:8YWXG nidx=null parent=KDBP]
Dasybasis (Dasybasis) andicola
 - Dasybasis (Dasybasis) andicola (Philippi, 1865) [ACCEPTED SPECIES 9817:8BQFC nidx=null]
 + Dasybasis (Dasybasis) andicola (Philippi, 1862) [ACCEPTED SPECIES 9820:8YSKS nidx=null]
Dasybasis (Dasybasis) nigrifrons
 - Dasybasis (Dasybasis) nigrifrons (Philippi, 1865) [ACCEPTED SPECIES 9817:8BQJ4 nidx=null]
 + Dasybasis (Dasybasis) nigrifrons (Philippi, 1863) [ACCEPTED SPECIES 9820:8YSKX nidx=null]
Dasyhelea montana
 - Dasyhelea montana Yu & Ma, 1998 [ACCEPTED SPECIES 9817:348PK nidx=null]
 + Dasyhelea montana Zilahi-Sebess, 1940 [SYNONYM SPECIES 9820:348PL nidx=null parent=8BQLP]
Dasypogon caudatus
 - Dasypogon caudatus Bigot, 1881 [ACCEPTED SPECIES 9817:349LB nidx=null]
 + Dasypogon caudatus Fabricius, 1805 [SYNONYM SPECIES 9820:349LC nidx=null parent=6SY]
Dasypogon dorsalis
 - Dasypogon dorsalis Macquart, 1848 [ACCEPTED SPECIES 9817:349LV nidx=null]
 + Dasypogon dorsalis Wiedemann, 1824 [SYNONYM SPECIES 9820:6CDRQ nidx=null parent=6SY]
Dasypogon fulvus
 - Dasypogon fulvus Meigen, 1838 [SYNONYM SPECIES 9817:8BR7B nidx=null parent=523T5]
 + Dasypogon fulvus Meigen, 1835 [SYNONYM SPECIES 9820:8YSLC nidx=null parent=523T5]
Dasypogon fuscipennis
 - Dasypogon fuscipennis Macquart, 1834 [ACCEPTED SPECIES 9817:6CDRR nidx=null]
 + Dasypogon fuscipennis Meigen, 1820 [SYNONYM SPECIES 9820:349MD nidx=null parent=3M9KR]
Dasypogon laticeps
 - Dasypogon laticeps Eversmann, 1834 [ACCEPTED SPECIES 9817:884L5 nidx=null]
 + Dasypogon laticeps Wulp, 1867 [SYNONYM SPECIES 9820:349MZ nidx=null parent=3M7GJ]
Dasypogon luctuosus
 - Dasypogon luctuosus Macquart, 1838 [ACCEPTED SPECIES 9817:349N8 nidx=null]
 + Dasypogon luctuosus Wiedemann, 1820 [SYNONYM SPECIES 9820:8YSLD nidx=null parent=6XNPS]
Degeeria muscorum
 - Degeeria muscorum Tullberg, 1872 [SYNONYM SPECIES 9817:6CGLW nidx=null parent=6FF4B]
 - Degeeria muscorum Tullberg, 1871 [AMBIGUOUS_SYNONYM SPECIES 9817:6CGM7 nidx=null parent=6FF53]
 - Degeeria muscorum Tullberg, 1871 [AMBIGUOUS_SYNONYM SPECIES 9817:6CGM8 nidx=null parent=6FF5L]
 + Degeeria muscorum Guthrie, JE, 1903 [SYNONYM SPECIES 9820:8YXF4 nidx=null parent=6FF53]
 + Degeeria muscorum Brook, G, 1884 [SYNONYM SPECIES 9820:8YXF5 nidx=null parent=6FF53]
Degeeria muscorum var. obscura
 - Degeeria muscorum var. obscura Tullberg, 1871 [SYNONYM VARIETY 9817:5NH4R nidx=null parent=6FF53]
 + Degeeria muscorum var. obscura South, A, 1961 [SYNONYM VARIETY 9820:8Z82W nidx=null parent=6FF53]
Degeeria nivalis
 - Degeeria nivalis Lubbock, 1873 [SYNONYM SPECIES 9817:6CGLY nidx=null parent=6FF53]
 + Degeeria nivalis Nicolet, H, 1847 [SYNONYM SPECIES 9820:8Z64J nidx=null parent=6FF53]
Delia hystricosternita
 - Delia hystricosternita Hsue, 1981 [SYNONYM SPECIES 9817:88JHJ nidx=null parent=8BRJ4]
 + Delia hystricosternita Hsue, 1981 [ACCEPTED SPECIES 9820:34FYB nidx=null]
Deltocephalus missellus
 - Deltocephalus missellus Ball, 1899 [SYNONYM SPECIES 9817:8RJWS nidx=null parent=6P37J]
 + Deltocephalus missellus Ball, 1899 [SYNONYM SPECIES 9820:8Z64M nidx=null parent=6P37J]
Demania unispinosa
 - Demania unispinosa H.-L. Chen & P.K.L. Ng, 1999 [ACCEPTED SPECIES 9817:34KQS nidx=null]
 + Demania unispinosa HL Chen & PKL Ng, 1999 [ACCEPTED SPECIES 9820:8YWZ4 nidx=null]
Demanietta burmanica
 - Demanietta burmanica P.K.L. Ng, 2018 [ACCEPTED SPECIES 9817:6CJ6Z nidx=null]
 + Demanietta burmanica PKL Ng, 2018 [ACCEPTED SPECIES 9820:8YWZ5 nidx=null]
Dendrocephalinus
 - Dendrocephalinus Rogers, Dunn & Price, 2019 [ACCEPTED SUBGENUS 9817:8W5CK nidx=null]
 - Dendrocephalinus Rogers, 2006 [SYNONYM SUBGENUS 9817:8W5CL nidx=null parent=8W5CK]
 + Dendrocephalinus Rogers, Dunn & Price, 2019 [ACCEPTED SUBGENUS 9820:7Q7FW nidx=null]
 + Dendrocephalinus Rogers, 2006 [SYNONYM SUBGENUS 9820:8YT3G nidx=null parent=7Q7FW]
Dendrocephalus
 - Dendrocephalus Daday, 1908 [ACCEPTED SUBGENUS 9817:8VWT7 nidx=null]
 + Dendrocephalus Daday, 1908 [ACCEPTED SUBGENUS 9820:7NVNQ nidx=null]
Dendrotrochus helicinoides
 - Dendrotrochus helicinoides (L. Pfeiffer, 1849) [SYNONYM SPECIES 9817:8R6XT nidx=null parent=8R7XR]
 + Dendrotrochus helicinoides (L. Pfeiffer, 1849) [ACCEPTED SPECIES 9820:7R2CK nidx=null]
Dendrotrochus helicinoides helicinoides
 - Dendrotrochus helicinoides helicinoides (L. Pfeiffer, 1849) [SYNONYM SUBSPECIES 9817:8R843 nidx=null parent=8RXJW]
 + Dendrotrochus helicinoides helicinoides (L. Pfeiffer, 1849) [ACCEPTED SUBSPECIES 9820:7TT98 nidx=null]
Dendrotrochus helicinoides labillardierei
 - Dendrotrochus helicinoides labillardierei (E. A. Smith, 1884) [SYNONYM SUBSPECIES 9817:8R844 nidx=null parent=8RWRB]
 + Dendrotrochus helicinoides labillardierei (E. A. Smith, 1884) [ACCEPTED SUBSPECIES 9820:7TT99 nidx=null]
Dermaster
 - Dermaster de Loriol, 1899 [ACCEPTED SUPERTRIBE 9817:83NV6 nidx=null]
 + Dermaster de Loriol, 1899 [ACCEPTED GENUS 9820:8Z37R nidx=null]
Desoria tigrina
 - Desoria tigrina Nicolet, H, 1842 [AMBIGUOUS_SYNONYM SPECIES 9817:354HN nidx=null parent=4KVTM]
 + Desoria tigrina Bourlet, C, 1845 [AMBIGUOUS_SYNONYM SPECIES 9820:8YWZM nidx=null parent=3QCRX]
Deuterosminthurus
 - Deuterosminthurus Börner, 1901 nc ICZN Opinion, 1042, 1976 [ACCEPTED GENUS 9817:43V6 nidx=null]
 - Deuterosminthurus Wray, 1948 [SYNONYM GENUS 9817:43V7 nidx=null parent=57QB]
 + Deuterosminthurus Börner, 1901 [ACCEPTED GENUS 9820:8Z25M nidx=null]
Dexia marmorata
 - Dexia marmorata Meigen, 1838 [SYNONYM SPECIES 9817:8BRQV nidx=null parent=5WL6G]
 + Dexia marmorata Meigen, 1835 [SYNONYM SPECIES 9820:8YSLZ nidx=null parent=5WL6G]
Diamesa incisiolabiata
 - Diamesa incisiolabiata Linevich, 2002 [ACCEPTED SPECIES 9817:6CQN3 nidx=null]
 + Diamesa incisiolabiata Linevich, 1963 [SYNONYM SPECIES 9820:6D2MR nidx=null parent=84X]
Dicyrtoma novaeboracensis
 - Dicyrtoma novaeboracensis Fitch, 1862 [ACCEPTED SPECIES 9817:35WCC nidx=null]
 + Dicyrtoma novaeboracensis (Fitch, A, 1863) [ACCEPTED SPECIES 9820:8Z66R nidx=null]
Dicyrtomina ornata f. couloni
 - Dicyrtomina ornata f. couloni sf.5 Janssens F, 2019 [SYNONYM FORM 9817:5SFKP nidx=null parent=6CSXG]
 + Dicyrtomina ornata f. couloni Janssens F, 2019 [SYNONYM FORM 9820:8Z86Q nidx=null parent=6CSXG]
Dilophus marginatus
 - Dilophus marginatus Meigen [ACCEPTED SPECIES 9817:88KSK nidx=null]
 + Dilophus marginatus Meigen, 1804 [SYNONYM SPECIES 9820:365ZV nidx=null parent=365Y7]
Dimorphacanthella anommatos
 - Dimorphacanthella anommatos (Chen & Yin, 1984 tt) [ACCEPTED SPECIES 9817:6CVQW nidx=null]
 + Dimorphacanthella anommatos (Chen & Yin, 1984) [ACCEPTED SPECIES 9820:8Z675 nidx=null]
Dinera grisea
 - Dinera grisea (Šuster, 1929) [ACCEPTED SPECIES 9817:88KTC nidx=null]
 + Dinera grisea Robineau-Desvoidy, 1830 [SYNONYM SPECIES 9820:368L5 nidx=null parent=368KQ]
Dioctria (Dioctria) cavifrons
 - Dioctria (Dioctria) cavifrons Enderlein, 1934 [ACCEPTED SPECIES 9817:8BSPW nidx=null]
 + Dioctria (Dioctria) cavifrons Enderlein, 1933 [ACCEPTED SPECIES 9820:8YSN7 nidx=null]
Dioctria cavifrons
 - Dioctria cavifrons Enderlein, 1934 [SYNONYM SPECIES 9817:88KVD nidx=null parent=8BSPW]
 + Dioctria cavifrons Enderlein, 1933 [SYNONYM SPECIES 9820:8YSN6 nidx=null parent=8YSN7]
Dioctria rufimana
 - Dioctria rufimana Eversmann, 1834 [ACCEPTED SPECIES 9817:88KXF nidx=null]
 + Dioctria rufimana Loew, 1840 [SYNONYM SPECIES 9820:6D89V nidx=null parent=8BSPK]
Dioctria rufipes
 - Dioctria rufipes De Geer, 1776 [PROVISIONALLY_ACCEPTED SPECIES 9817:6CVJ9 nidx=null]
 + Dioctria rufipes Jones, 1907 [AMBIGUOUS_SYNONYM SPECIES 9820:6CVJ2 nidx=null parent=54TTL]
Diphasia spasskii
 - Diphasia spasskii Fenyuk, 1947 [SYNONYM SPECIES 9817:36FM8 nidx=null parent=4CKT9]
 + Diphasia spasskii Feniuk, 1947 [SYNONYM SPECIES 9820:8YPXH nidx=null parent=8YPY5]
Diplodon diluvii
 - Diplodon diluvii (d'Orbigny, 1842) [ACCEPTED SPECIES 9817:8LTGW nidx=null]
 + Diplodon diluvii (d'Orbigny, 1843) [ACCEPTED SPECIES 9820:8Z67D nidx=null]
Diplotaxys georgiae
 - Diplotaxys georgiae Blanchard, 1851 [SYNONYM SPECIES 9817:36NYC nidx=null parent=6D9HS]
 + Diplotaxys georgiae Blanchard, 1850 [SYNONYM SPECIES 9820:8YX44 nidx=null parent=6D9HS]
Dischistus maculatus
 - Dischistus maculatus Hall, 1976 [SYNONYM SPECIES 9817:88L73 nidx=null parent=8BT4Q]
 + Dischistus maculatus Hall, 1976 [ACCEPTED SPECIES 9820:36SQ2 nidx=null]
Discomyza eritrea
 - Discomyza eritrea Cresson, 1935 [ACCEPTED SPECIES 9817:36TV4 nidx=null]
 + Discomyza eritrea Cresson, 1939 [ACCEPTED SPECIES 9820:8YSPG nidx=null]
Distocambarus
 - Distocambarus Hobbs, 1981 [ACCEPTED SUBGENUS 9817:8VX35 nidx=null]
 + Distocambarus Hobbs, 1981 [ACCEPTED SUBGENUS 9820:7NX7N nidx=null]
Dixa guttipennis
 - Dixa guttipennis Thomson, 1869 [SYNONYM SPECIES 9817:88LBP nidx=null parent=8BTDN]
 + Dixa guttipennis Thomson, 1869 [ACCEPTED SPECIES 9820:36ZZB nidx=null]
Dixa pollex
 - Dixa pollex Nowell, 1980 [SYNONYM SPECIES 9817:88LBQ nidx=null parent=8BTDT]
 + Dixa pollex Nowell, 1980 [ACCEPTED SPECIES 9820:37235 nidx=null]
Dixa serotina
 - Dixa serotina Meigen, 1818 [SYNONYM SPECIES 9817:8BTGF nidx=null parent=37267]
 + Dixa serotina Wiedemann, 1818 [SYNONYM SPECIES 9820:8YSPJ nidx=null parent=8YSPK]
Dixa venosa
 - Dixa venosa Loew, 1872 [SYNONYM SPECIES 9817:885JT nidx=null parent=8BTDX]
 + Dixa venosa Loew, 1872 [ACCEPTED SPECIES 9820:37246 nidx=null]
Dixella serotina
 - Dixella serotina (Meigen, 1818) [ACCEPTED SPECIES 9817:37267 nidx=null]
 + Dixella serotina (Wiedemann, 1818) [ACCEPTED SPECIES 9820:8YSPK nidx=null]
Dolichomerus abdominalis
 - Dolichomerus abdominalis Curran, 1927 [SYNONYM SPECIES 9817:88LCW nidx=null parent=8DCFW]
 + Dolichomerus abdominalis Curran, 1927 [SYNONYM SPECIES 9820:375GN nidx=null parent=4HMGT]
Dolichopus (Dolichopus) oxianus
 - Dolichopus (Dolichopus) oxianus Stackelberg, 1933 [ACCEPTED SPECIES 9817:8BTXV nidx=null]
 + Dolichopus (Dolichopus) oxianus Stackelberg, 1930 [ACCEPTED SPECIES 9820:8YSQ2 nidx=null]
Dolichopus (Dolichopus) reichardti
 - Dolichopus (Dolichopus) reichardti Stackelberg, 1933 [ACCEPTED SPECIES 9817:8BTYK nidx=null]
 + Dolichopus (Dolichopus) reichardti Stackelberg, 1930 [ACCEPTED SPECIES 9820:8YSQ6 nidx=null]
Dolichopus (Dolichopus) roborovskii
 - Dolichopus (Dolichopus) roborovskii Stackelberg, 1933 [ACCEPTED SPECIES 9817:8BTYN nidx=null]
 + Dolichopus (Dolichopus) roborovskii Stackelberg, 1930 [ACCEPTED SPECIES 9820:8YSQ8 nidx=null]
Dolichopus (Dolichopus) turanicus
 - Dolichopus (Dolichopus) turanicus Stackelberg, 1927 [ACCEPTED SPECIES 9817:8BV23 nidx=null]
 + Dolichopus (Dolichopus) turanicus Stackelberg, 1930 [ACCEPTED SPECIES 9820:8YSQ9 nidx=null]
Dolichopus (Dolichopus) uralensis
 - Dolichopus (Dolichopus) uralensis Stackelberg, 1933 [ACCEPTED SPECIES 9817:8BV28 nidx=null]
 + Dolichopus (Dolichopus) uralensis Stackelberg, 1930 [ACCEPTED SPECIES 9820:8YSQD nidx=null]
Dolichopus (Dolichopus) victoris
 - Dolichopus (Dolichopus) victoris Stackelberg, 1933 [ACCEPTED SPECIES 9817:8BV2D nidx=null]
 + Dolichopus (Dolichopus) victoris Stackelberg, 1930 [ACCEPTED SPECIES 9820:8YSQF nidx=null]
Dolichopus (Dolichopus) zimini
 - Dolichopus (Dolichopus) zimini Stackelberg, 1933 [ACCEPTED SPECIES 9817:8BV2M nidx=null]
 + Dolichopus (Dolichopus) zimini Stackelberg, 1930 [ACCEPTED SPECIES 9820:8YSQJ nidx=null]
Dolichopus fusciformis
 - Dolichopus fusciformis Becker, 1917 [SYNONYM SPECIES 9817:88LGZ nidx=null parent=8BTVH]
 + Dolichopus fusciformis Negrobov, 1991 [SYNONYM SPECIES 9820:8YSPX nidx=null parent=8ZQYC]
Dolichopus gracilis
 - Dolichopus gracilis Aldrich, 1893 [ACCEPTED SPECIES 9817:376FP nidx=null]
 + Dolichopus gracilis Stannius, 1831 [SYNONYM SPECIES 9820:8YSQN nidx=null parent=8CBD3]
Dolichopus minutus
 - Dolichopus minutus Statz, 1940 [PROVISIONALLY_ACCEPTED SPECIES 9817:88LJW nidx=null]
 - Dolichopus minutus (Meunier, 1907) [ACCEPTED SPECIES 9817:88LJX nidx=null]
 + Dolichopus minutus Fabricius, 1805 [SYNONYM SPECIES 9820:8YSQP nidx=null parent=56NBR]
Dolichopus nigrilamellatus
 - Dolichopus nigrilamellatus Loew, 1850 [ACCEPTED SPECIES 9817:88LK9 nidx=null]
 + Dolichopus nigrilamellatus Macquart, 1828 [SYNONYM SPECIES 9820:8YSPY nidx=null parent=8CBG3]
Dolichopus oxianus
 - Dolichopus oxianus Stackelberg, 1933 [SYNONYM SPECIES 9817:88LKN nidx=null parent=8BTXV]
 + Dolichopus oxianus Stackelberg, 1930 [SYNONYM SPECIES 9820:8YSQ3 nidx=null parent=8YSQ2]
Dolichopus popularis
 - Dolichopus popularis Wiedemann, 1817 [SYNONYM SPECIES 9817:88LLC nidx=null parent=8BTY9]
 + Dolichopus popularis Wiedemann, 1817 [ACCEPTED SPECIES 9820:376PC nidx=null]
Dolichopus pseudocilifemoratus
 - Dolichopus pseudocilifemoratus Stackelberg, 1933 [SYNONYM SPECIES 9817:88LLH nidx=null parent=8BTTJ]
 + Dolichopus pseudocilifemoratus Stackelberg, 1930 [SYNONYM SPECIES 9820:8YSQQ nidx=null parent=8BTTJ]
Dolichopus reichardti
 - Dolichopus reichardti Stackelberg, 1933 [SYNONYM SPECIES 9817:88LLP nidx=null parent=8BTYK]
 + Dolichopus reichardti Stackelberg, 1930 [SYNONYM SPECIES 9820:8YSQ5 nidx=null parent=8YSQ6]
Dolichopus roborovskii
 - Dolichopus roborovskii Stackelberg, 1933 [SYNONYM SPECIES 9817:88LLT nidx=null parent=8BTYN]
 + Dolichopus roborovskii Stackelberg, 1930 [SYNONYM SPECIES 9820:8YSQ7 nidx=null parent=8YSQ8]
Dolichopus scoparius
 - Dolichopus scoparius Loew [ACCEPTED SPECIES 9817:885LD nidx=null]
 + Dolichopus scoparius Loew, 1864 [SYNONYM SPECIES 9820:376R8 nidx=null parent=6DDB4]
Dolichopus tenuicornis
 - Dolichopus tenuicornis Parent, 1927 [SYNONYM SPECIES 9817:88LN9 nidx=null parent=8BV2W]
 + Dolichopus tenuicornis (Parent, 1927) [ACCEPTED SPECIES 9820:376TT nidx=null]
Dolichopus turanicus
 - Dolichopus turanicus Stackelberg, 1933 [SYNONYM SPECIES 9817:88LNJ nidx=null parent=8BV23]
 + Dolichopus turanicus Stackelberg, 1930 [SYNONYM SPECIES 9820:8YSQB nidx=null parent=8YSQ9]
Dolichopus uralensis
 - Dolichopus uralensis Stackelberg, 1933 [SYNONYM SPECIES 9817:88LNL nidx=null parent=8BV28]
 + Dolichopus uralensis Stackelberg, 1930 [SYNONYM SPECIES 9820:8YSQC nidx=null parent=8YSQD]
Dolichopus victoris
 - Dolichopus victoris Stackelberg, 1933 [SYNONYM SPECIES 9817:88LNT nidx=null parent=8BV2D]
 + Dolichopus victoris Stackelberg, 1930 [SYNONYM SPECIES 9820:8YSQG nidx=null parent=8YSQF]
Dolichopus zimini
 - Dolichopus zimini Stackelberg, 1933 [SYNONYM SPECIES 9817:88LP4 nidx=null parent=8BV2M]
 + Dolichopus zimini Stackelberg, 1930 [SYNONYM SPECIES 9820:8YSQH nidx=null parent=8YSQJ]
Doros caucasicus
 - Doros caucasicus Kuzentzov, 2002 [SYNONYM SPECIES 9817:37DZY nidx=null parent=6DGCZ]
 + Doros caucasicus Kuznetzov, 2002 [SYNONYM SPECIES 9820:8YSQR nidx=null parent=6DGCZ]
Dorylaimellus (Axodorylaimellus) parvulus
 - Dorylaimellus (Axodorylaimellus) parvulus Thorne, 1939 [ACCEPTED SPECIES 9817:8G7M3 nidx=null]
 + Dorylaimellus (Axodorylaimellus) parvulus (Thorne, 1939) Jairajpuri & Ahmad, 1980 [ACCEPTED SPECIES 9820:8YX39 nidx=null]
Draconema lugubre
 - Draconema lugubre [SYNONYM SPECIES 9817:8G7XZ nidx=null parent=8GH8D]
 + Draconema lugubre (Gerlach, 1957) [SYNONYM SPECIES 9820:8YX3K nidx=null parent=8GH8D]
Drapetis flavipes
 - Drapetis flavipes Waltl, 1837 [ACCEPTED SPECIES 9817:37LD9 nidx=null]
 + Drapetis flavipes Macquart, 1834 [SYNONYM SPECIES 9820:6DJF5 nidx=null parent=8BVNJ]
Drepanosira ornata
 - Drepanosira ornata (Stach, 1963 nec Bonet, 1930) [ACCEPTED SPECIES 9817:37N27 nidx=null]
 + Drepanosira ornata (Bonet, F, 1930) [ACCEPTED SPECIES 9820:8Z67M nidx=null]
Drepanura punctata
 - Drepanura punctata Ritter, 1911 [SYNONYM SPECIES 9817:37NCD nidx=null parent=6YCF5]
 + Drepanura punctata Yosii, 1966 [SYNONYM SPECIES 9820:8Z67S nidx=null parent=6YCF5]
Drepanura wahlgreni
 - Drepanura wahlgreni Bonet, 1934 [ACCEPTED SPECIES 9817:37NCN nidx=null]
 + Drepanura wahlgreni (Bonet, F, 1933) [ACCEPTED SPECIES 9820:8Z67T nidx=null]
Dromioidea
 - Dromioidea De Haan, 1833 [in De Haan, 1833-1850] [ACCEPTED SUPERFAMILY 9817:7NFNF nidx=null]
 + Dromioidea De Haan, 1833 [ACCEPTED SUPERFAMILY 9820:53M nidx=null]
Drosophila albomicans
 - Drosophila albomicans Duda, 1923 [ACCEPTED SPECIES 9817:37R3V nidx=null]
 + Drosophila albomicans Duda, 1924 [SYNONYM SPECIES 9820:6DMB3 nidx=null parent=8BVY4]
Drosophila amaguana
 - Drosophila amaguana Vela & Rafael, 2003 [ACCEPTED SPECIES 9817:37R4N nidx=null]
 + Drosophila amaguana Vela & Rafael, 2004 [SYNONYM SPECIES 9820:8YSQT nidx=null parent=8BVYD]
Drosophila badia
 - Drosophila badia Lin & Wheeler, 1977 [ACCEPTED SPECIES 9817:885T5 nidx=null]
 + Drosophila badia Hardy, 1965 [SYNONYM SPECIES 9820:37R89 nidx=null parent=8BW2B]
Drosophila fengkaiensis
 - Drosophila fengkaiensis Zhang, Chen, Peng & Lin, 1996 [ACCEPTED SPECIES 9817:88MN5 nidx=null]
 + Drosophila fengkaiensis Zhang, Chen, Peng & Lin, 1998 [SYNONYM SPECIES 9820:8YSRH nidx=null parent=8BX9C]
Drosophila flava
 - Drosophila flava Meigen [ACCEPTED SPECIES 9817:88MN8 nidx=null]
 + Drosophila flava Zhang & Liang, 1992 [AMBIGUOUS_SYNONYM SPECIES 9820:37RM6 nidx=null parent=3W6Q8]
 + Drosophila flava Fallén, 1823 [AMBIGUOUS_SYNONYM SPECIES 9820:8YSRJ nidx=null parent=8DSF2]
Drosophila gigantea
 - Drosophila gigantea (Hsu, 1949) [ACCEPTED SPECIES 9817:88MPQ nidx=null]
 + Drosophila gigantea Thomson, 1869 [SYNONYM SPECIES 9820:8YSRK nidx=null parent=4S94S]
Drosophila hayashii
 - Drosophila hayashii Okada, 1948 [ACCEPTED SPECIES 9817:88MQT nidx=null]
 + Drosophila hayashii Okada, 1953 [SYNONYM SPECIES 9820:37RRN nidx=null parent=8BWVS]
Drosophila hirtominuta
 - Drosophila hirtominuta Bächli, 1988 [ACCEPTED SPECIES 9817:8BXT5 nidx=null]
 + Drosophila hirtominuta Bächli, 1974 [SYNONYM SPECIES 9820:8YSRM nidx=null parent=3M4JF]
Drosophila longecrinita
 - Drosophila longecrinita Duda, 1924 [ACCEPTED SPECIES 9817:88MVW nidx=null]
 + Drosophila longecrinita Duda, 1924 [SYNONYM SPECIES 9820:6DLT9 nidx=null parent=3M4K4]
Drosophila nigribasis
 - Drosophila nigribasis Hardy, 1965 [ACCEPTED SPECIES 9817:6DLV6 nidx=null]
 + Drosophila nigribasis Hardy, 1969 [SYNONYM SPECIES 9820:8YSR2 nidx=null parent=8BWMX]
Drosophila obscuricornis
 - Drosophila obscuricornis Meijere [ACCEPTED SPECIES 9817:8BY2C nidx=null]
 + Drosophila obscuricornis Grimshaw, 1901 [SYNONYM SPECIES 9820:8YSRT nidx=null parent=6Y5ZM]
Drosophila painii
 - Drosophila painii Singh & Negi, 1992 [ACCEPTED SPECIES 9817:37SDG nidx=null]
 + Drosophila painii Singh & Negi, 1992 [SYNONYM SPECIES 9820:37SDH nidx=null parent=8BWQ8]
 + Drosophila painii Singh & Negi, 1995 [SYNONYM SPECIES 9820:8YSR5 nidx=null parent=8BWQ8]
Drosophila palustris
 - Drosophila palustris Dahl, 1896 [ACCEPTED SPECIES 9817:8862K nidx=null]
 + Drosophila palustris Spencer, 1942 [SYNONYM SPECIES 9820:37SDV nidx=null parent=8BWQD]
Drosophila pusilla
 - Drosophila pusilla Eversmann, 1834 [ACCEPTED SPECIES 9817:8BY5J nidx=null]
 + Drosophila pusilla Grimshaw, 1901 [SYNONYM SPECIES 9820:8YSRX nidx=null parent=79TZY]
Drosophila suma
 - Drosophila suma Burla, 1954 [SYNONYM SPECIES 9817:88NG8 nidx=null parent=8CCDG]
 + Drosophila suma Burla, 1954 [SYNONYM SPECIES 9820:6DLWP nidx=null parent=3M4M5]
Drosophila trivittata
 - Drosophila trivittata Eversmann, 1834 [ACCEPTED SPECIES 9817:8BY8Z nidx=null]
 + Drosophila trivittata Strobl, 1893 [SYNONYM SPECIES 9820:8YSS5 nidx=null parent=3M4MM]
Dyris gracilis
 - Dyris gracilis Woodward, 1871 [ACCEPTED SPECIES 9817:386RV nidx=null]
 + Dyris gracilis Conrad, 1871 [ACCEPTED SPECIES 9820:8YX3M nidx=null]
Edmondsius
 - Edmondsius Gibbs & Cutler, 1987 [ACCEPTED SUBGENUS 9817:8W5BR nidx=null]
 - Edmondsius Gibbs & Cutler, 1987 [SYNONYM SUBGENUS 9817:8W5BS nidx=null parent=8W5BR]
 + Edmondsius Gibbs & Cutler, 1987 [ACCEPTED SUBGENUS 9820:7Q7GY nidx=null]
 + Edmondsius Gibbs & Cutler, 1987 [SYNONYM SUBGENUS 9820:8YT2S nidx=null parent=7Q7GY]
Egle hirta
 - Egle hirta Malloch, 1918 [SYNONYM SPECIES 9817:886HM nidx=null parent=8D7DK]
 + Egle hirta Malloch, 1918 [SYNONYM SPECIES 9820:6DYXM nidx=null parent=4DKG2]
Elaphoceridae
 - Elaphoceridae Blanchard, 1851 [SYNONYM GENUS 9817:8TM4F nidx=null parent=L46]
 + Elaphoceridae Blanchard, 1850 [SYNONYM GENUS 9820:8YX2J nidx=null parent=L46]
Elegantinia venusta
 - Elegantinia venusta J. Chen, 1976 [ACCEPTED SPECIES 9817:396XM nidx=null]
 + Elegantinia venusta (C.-Z. Chen, Q.-H. Ma & Z.-M. Zhang, 1974) [ACCEPTED SPECIES 9820:8YX47 nidx=null]
Emmesomyia fuscipalpis
 - Emmesomyia fuscipalpis Griffiths, 1984 [SYNONYM SPECIES 9817:886NX nidx=null parent=8BYX7]
 + Emmesomyia fuscipalpis Griffiths, 1984 [ACCEPTED SPECIES 9820:39H7T nidx=null]
Emmesomyia longiforceps
 - Emmesomyia longiforceps Griffiths, 1984 [SYNONYM SPECIES 9817:886NY nidx=null parent=8BYX8]
 + Emmesomyia longiforceps Griffiths, 1984 [ACCEPTED SPECIES 9820:39H83 nidx=null]
Emmesomyia unica
 - Emmesomyia unica Malloch, 1917 [SYNONYM SPECIES 9817:886P3 nidx=null parent=8BYXB]
 + Emmesomyia unica Malloch, 1917 [SYNONYM SPECIES 9820:39H93 nidx=null parent=39H8S]
Emphysomera hyacinthina
 - Emphysomera hyacinthina Bigot, 1877 [SYNONYM SPECIES 9817:8BYYN nidx=null parent=6SLSW]
 + Emphysomera hyacinthina Bigot, 1876 [SYNONYM SPECIES 9820:8YSTC nidx=null parent=6SLSW]
Empis (Empis) cyrenaica
 - Empis (Empis) cyrenaica (Bezzi, 1925) [ACCEPTED SPECIES 9817:8BZBF nidx=null]
 + Empis (Empis) cyrenaica (Bezzi, 1924) [ACCEPTED SPECIES 9820:8YSTP nidx=null]
Empis bicolor
 - Empis bicolor Bellardi, 1861 [ACCEPTED SPECIES 9817:39HZX nidx=null]
 + Empis bicolor Macquart, 1823 [SYNONYM SPECIES 9820:39HZY nidx=null parent=8DLJJ]
Empis cinerea
 - Empis cinerea Müller, 1776 [ACCEPTED SPECIES 9817:39J3R nidx=null]
 + Empis cinerea Zetterstedt, 1855 [AMBIGUOUS_SYNONYM SPECIES 9820:39J3S nidx=null parent=8BZ99]
 + Empis cinerea Fabricius, 1775 [AMBIGUOUS_SYNONYM SPECIES 9820:8YSVB nidx=null parent=7967H]
Empis elongata
 - Empis elongata Meigen, 1838 [SYNONYM SPECIES 9817:88PQV nidx=null parent=8BZH2]
 + Empis elongata Meigen & Waltl, 1835 [SYNONYM SPECIES 9820:8YSVC nidx=null parent=8BZH2]
Empis leucoptera
 - Empis leucoptera Meigen, 1804 [PROVISIONALLY_ACCEPTED SPECIES 9817:39JCZ nidx=null]
 + Empis leucoptera Macquart, 1823 [AMBIGUOUS_SYNONYM SPECIES 9820:39JCY nidx=null parent=8BZB5]
Empis longipes
 - Empis longipes Keilbach, 1982 [ACCEPTED SPECIES 9817:886QX nidx=null]
 + Empis longipes Loew, 1864 [AMBIGUOUS_SYNONYM SPECIES 9820:39JDS nidx=null parent=8BZRT]
 + Empis longipes Meigen, 1804 [AMBIGUOUS_SYNONYM SPECIES 9820:8YSVG nidx=null parent=8DL7T]
Empis nigricans
 - Empis nigricans Macquart, 1823 [ACCEPTED SPECIES 9817:88PYV nidx=null]
 + Empis nigricans Meigen, 1804 [SYNONYM SPECIES 9820:39JGY nidx=null parent=8BZK9]
Empis rufipes
 - Empis rufipes Gmelin, 1790 [PROVISIONALLY_ACCEPTED SPECIES 9817:39JNM nidx=null]
 + Empis rufipes Fabricius, 1805 [AMBIGUOUS_SYNONYM SPECIES 9820:39JNN nidx=null parent=8BZKF]
 + Empis rufipes Meigen, 1804 [AMBIGUOUS_SYNONYM SPECIES 9820:8YSVJ nidx=null parent=78TVR]
 + Empis rufipes Wiedemann, 1830 [PROVISIONALLY_ACCEPTED SPECIES 9820:8YSVK nidx=null]
Empis simplex
 - Empis simplex Keilbach, 1982 [ACCEPTED SPECIES 9817:8BZWK nidx=null]
 + Empis simplex Wiedemann, 1817 [SYNONYM SPECIES 9820:8YSVL nidx=null parent=3LWFJ]
Empis variabilis
 - Empis variabilis Bigot, 1857 [ACCEPTED SPECIES 9817:39JTM nidx=null]
 + Empis variabilis Fallén, 1816 [SYNONYM SPECIES 9820:8YSVM nidx=null parent=8DLCC]
Encya bisignata
 - Encya bisignata Blanchard, 1851 [SYNONYM SPECIES 9817:6F88Y nidx=null parent=LWRB]
 + Encya bisignata Blanchard, 1850 [SYNONYM SPECIES 9820:8YX48 nidx=null parent=8YVSW]
Endonura ludovicae
 - Endonura ludovicae (Denis, 1948) [ACCEPTED SPECIES 9817:39S22 nidx=null]
 + Endonura ludovicae (Denis, J-R, 1947) [ACCEPTED SPECIES 9820:8Z53H nidx=null]
Endonura urotuberculata
 - Endonura urotuberculata Pomorski, RJ & Skarzynski, D, 1999 [ACCEPTED SPECIES 9817:39S2Q nidx=null]
 + Endonura urotuberculata Pomorski, RJ & Skarzynski, D, 2000 [ACCEPTED SPECIES 9820:8Z67W nidx=null]
Ensina hyalipennis
 - Ensina hyalipennis (Hennig, 1940) [ACCEPTED SPECIES 9817:886YZ nidx=null]
 + Ensina hyalipennis Bezzi, 1924 [SYNONYM SPECIES 9820:8YSVN nidx=null parent=7BKBV]
Entomobrya carbonaria
 - Entomobrya carbonaria Bonet, 1934 [ACCEPTED SPECIES 9817:6FFF6 nidx=null]
 + Entomobrya carbonaria Bonet, F, 1933 [ACCEPTED SPECIES 9820:8Z685 nidx=null]
Entomobrya fasciata
 - Entomobrya fasciata Denis, 1931 [ACCEPTED SPECIES 9817:6FF8S nidx=null]
 + Entomobrya fasciata (Say, 1821) [ACCEPTED SPECIES 9820:8Z688 nidx=null]
Entomobrya flava
 - Entomobrya flava Maynard, EA, 1951 [AMBIGUOUS_SYNONYM SPECIES 9817:6FF96 nidx=null parent=6FFDR]
 + Entomobrya flava James, 1933 [SYNONYM SPECIES 9820:8Z53R nidx=null parent=6FFDR]
 + Entomobrya flava Lie-Pettersen, 1897 [SYNONYM SPECIES 9820:8Z53S nidx=null parent=6FFDR]
Entomobrya kali
 - Entomobrya kali Imms, 1912 [SYNONYM SPECIES 9817:6FF22 nidx=null parent=3MFD8]
 + Entomobrya kali Salmon, JT, 1964 [SYNONYM SPECIES 9820:8Z68H nidx=null parent=3MFD8]
Entomobrya lanuginosa
 - Entomobrya lanuginosa -maritima Denis, 1948 [AMBIGUOUS_SYNONYM SPECIES 9817:6FF2L nidx=null parent=6FF2Q]
 + Entomobrya lanuginosa Bonet, 1931 [AMBIGUOUS_SYNONYM SPECIES 9820:8YXPD nidx=null parent=6FF4B]
 + Entomobrya lanuginosa Arbea, JI, Baquero, E, Beruete, E, Pérez Fernández, T & Jordana, R, 2021 [AMBIGUOUS_SYNONYM SPECIES 9820:8YXPF nidx=null parent=6FF4B]
 + Entomobrya lanuginosa Jordana, R & Greenslade, P, 2020 [AMBIGUOUS_SYNONYM SPECIES 9820:8YXPH nidx=null parent=8ZMYP]
 + Entomobrya lanuginosa Brown, 1926 [AMBIGUOUS_SYNONYM SPECIES 9820:8YXPJ nidx=null parent=6FF5F]
Entomobrya lanuginosa-muscorum
 - Entomobrya lanuginosa-muscorum Ågren, 1903 [SYNONYM SPECIES 9817:6FF2S nidx=null parent=6FF5L]
 + Entomobrya lanuginosa-muscorum Handschin, E in Dahl, F, 1929 [SYNONYM SPECIES 9820:8Z68L nidx=null parent=6FF5L]
Entomobrya longipes
 - Entomobrya longipes Bonet, 1934 [ACCEPTED SPECIES 9817:6FF46 nidx=null]
 + Entomobrya longipes Bonet, F, 1933 [ACCEPTED SPECIES 9820:8Z68M nidx=null]
Entomobrya marginata
 - Entomobrya marginata Mills, 1934 [AMBIGUOUS_SYNONYM SPECIES 9817:6FF3S nidx=null parent=6FFFR]
 + Entomobrya marginata Jordana, R & Greenslade, P, 2020 [AMBIGUOUS_SYNONYM SPECIES 9820:8YXPK nidx=null parent=8ZNTH]
 + Entomobrya marginata Greenslade P in Jordana, R & Greenslade, P, 2020 [AMBIGUOUS_SYNONYM SPECIES 9820:8YXPL nidx=null parent=6FFDY]
 + Entomobrya marginata Greenslade P in Jordana, R & Greenslade, P, 2020 [AMBIGUOUS_SYNONYM SPECIES 9820:8YXPM nidx=null parent=8ZMZP]
 + Entomobrya marginata Jordana, R & Greenslade, P, 2020 [AMBIGUOUS_SYNONYM SPECIES 9820:8YXPN nidx=null parent=8ZMZP]
 + Entomobrya marginata Jordana, R & Greenslade, P, 2020 [AMBIGUOUS_SYNONYM SPECIES 9820:8YXPP nidx=null parent=8ZNM2]
 + Entomobrya marginata Womersley, 1934 [AMBIGUOUS_SYNONYM SPECIES 9820:8YXPQ nidx=null parent=6FFDY]
 + Entomobrya marginata Ireson J in Jordana, R & Greenslade, P, 2020 [AMBIGUOUS_SYNONYM SPECIES 9820:8YXPS nidx=null parent=8ZMZP]
 + Entomobrya marginata Bonet, 1931 [AMBIGUOUS_SYNONYM SPECIES 9820:8YXPT nidx=null parent=6FFF8]
 + Entomobrya marginata Major J in Jordana, R & Greenslade, P, 2020 [AMBIGUOUS_SYNONYM SPECIES 9820:8YXPV nidx=null parent=8ZNM2]
 + Entomobrya marginata Arbea, JI, Baquero, E, Beruete, E, Pérez Fernández, T & Jordana, R, 2021 [AMBIGUOUS_SYNONYM SPECIES 9820:8YXPW nidx=null parent=6FFF8]
Entomobrya maritima
 - Entomobrya maritima Womersley, 1934 [SYNONYM SPECIES 9817:6FF44 nidx=null parent=6FGMR]
 + Entomobrya maritima Reuter, OM, 1892 [SYNONYM SPECIES 9820:8Z68P nidx=null parent=6FF2Q]
 + Entomobrya maritima Womersley H in Jordana, R & Greenslade, P, 2020 [SYNONYM SPECIES 9820:8Z68Q nidx=null parent=6FGMR]
 + Entomobrya maritima Jordana, R & Greenslade, P, 2020 [SYNONYM SPECIES 9820:8Z68R nidx=null parent=6FGMR]
 + Entomobrya maritima Reuter, 1890 [SYNONYM SPECIES 9820:8Z68S nidx=null parent=6FF2Q]
Entomobrya multifasciata
 - Entomobrya multifasciata Authors pre-2012 [AMBIGUOUS_SYNONYM SPECIES 9817:6FF4S nidx=null parent=6FF4B]
 - Entomobrya multifasciata Brook, 1884, partim, nec Tullberg, 1871 [AMBIGUOUS_SYNONYM SPECIES 9817:6FF52 nidx=null parent=6FF7Y]
 + Entomobrya multifasciata Christiansen, K & Bellinger, P, 1998 [SYNONYM SPECIES 9820:8Z68T nidx=null parent=6FFDR]
 + Entomobrya multifasciata Moniez, 1889 [SYNONYM SPECIES 9820:8Z68V nidx=null parent=6FF5L]
 + Entomobrya multifasciata Cassagnau, 1963 [SYNONYM SPECIES 9820:8Z68W nidx=null parent=6FF3J]
 + Entomobrya multifasciata Handschin, 1928 [SYNONYM SPECIES 9820:8Z68X nidx=null parent=6FF3J]
 + Entomobrya multifasciata Jordana, R & Greenslade, P, 2020 [SYNONYM SPECIES 9820:8Z68Y nidx=null parent=8ZMYP]
 + Entomobrya multifasciata Parfitt, 1891 [SYNONYM SPECIES 9820:8Z68Z nidx=null parent=6FFD2]
Entomobrya nicoleti-obscura
 - Entomobrya nicoleti-obscura Linnaniemi, 1912 [SYNONYM SPECIES 9817:6FF69 nidx=null parent=6FF5L]
 + Entomobrya nicoleti-obscura Handschin, E in Dahl, F, 1929 [SYNONYM SPECIES 9820:8Z694 nidx=null parent=6FF5L]
Entomobrya nigrina
 - Entomobrya nigrina Womersley, 1928 [AMBIGUOUS_SYNONYM SPECIES 9817:6FF5P nidx=null parent=3ZZKL]
 + Entomobrya nigrina Bonet, F, 1933 [AMBIGUOUS_SYNONYM SPECIES 9820:8Z53V nidx=null parent=3ZZKL]
Entomobrya nivalis
 - Entomobrya nivalis Dallai, R, 1973 [AMBIGUOUS_SYNONYM SPECIES 9817:6FF5V nidx=null parent=6FF2Q]
 - Entomobrya nivalis Dallai, R, 1973 [AMBIGUOUS_SYNONYM SPECIES 9817:6FF64 nidx=null parent=6FF65]
 - Entomobrya nivalis Dallai, R, 1973 [AMBIGUOUS_SYNONYM SPECIES 9817:6FF66 nidx=null parent=6FF45]
 - Entomobrya nivalis Dallai, R, 1973 [AMBIGUOUS_SYNONYM SPECIES 9817:6FF67 nidx=null parent=6FF4B]
 + Entomobrya nivalis Hopkin, SP, 2007 [AMBIGUOUS_SYNONYM SPECIES 9820:8YXQ2 nidx=null parent=6FF9C]
 + Entomobrya nivalis Handschin, 1929 [AMBIGUOUS_SYNONYM SPECIES 9820:8YXQ7 nidx=null parent=6FF4B]
Entomobrya nivalis var. transiens
 - Entomobrya nivalis var. transiens Bonet, 1934 [AMBIGUOUS_SYNONYM VARIETY 9817:5NQXM nidx=null parent=6FF5L]
 - Entomobrya nivalis var. transiens Bonet, 1934 [AMBIGUOUS_SYNONYM VARIETY 9817:5NQXN nidx=null parent=6FF53]
 + Entomobrya nivalis var. transiens Mari Mutt, JA & Bellinger, PF, 1990 [AMBIGUOUS_SYNONYM VARIETY 9820:8Z83F nidx=null parent=6FF5L]
 + Entomobrya nivalis var. transiens South, A, 1961 [AMBIGUOUS_SYNONYM VARIETY 9820:8Z83G nidx=null parent=6FF53]
 + Entomobrya nivalis var. transiens Bonet, F, 1933 [AMBIGUOUS_SYNONYM VARIETY 9820:8Z83H nidx=null parent=6FF53]
 + Entomobrya nivalis var. transiens Christiansen, K, 1958 [AMBIGUOUS_SYNONYM VARIETY 9820:8Z83J nidx=null parent=6FF5L]
Entomobrya spectabilis
 - Entomobrya spectabilis Reuter, 1890 [ACCEPTED SPECIES 9817:6FGKR nidx=null]
 + Entomobrya spectabilis Reuter, OM, 1892 [ACCEPTED SPECIES 9820:8YXQ8 nidx=null]
Entomobrya termitophila var. clarki
 - Entomobrya termitophila var. clarki Womersley, H, 1937 [SYNONYM VARIETY 9817:7M2RP nidx=null parent=6FGLM]
 + Entomobrya termitophila var. clarki Greenslade, P in Houston, WWK, 1994 [SYNONYM VARIETY 9820:8Z83K nidx=null parent=6FGLM]
Entomobryini
 - Entomobryini Börner, C, 1901 [SYNONYM SUBFAMILY 9817:JJ9 nidx=null parent=JNV]
 + Entomobryini Börner C, 1906 [ACCEPTED TRIBE 9820:8Z37L nidx=null]
Eocheilosia
 - Eocheilosia [ACCEPTED SUBGENUS 9817:89S9H nidx=null]
 + Eocheilosia [ACCEPTED GENUS 9820:8YQRS nidx=null]
Eoseristalis
 - Eoseristalis [ACCEPTED GENUS 9817:89Q6G nidx=null]
 + Eoseristalis [ACCEPTED SUBGENUS 9820:8YQDM nidx=null]
Ephydra oscitans
 - Ephydra oscitans Walker, 1858 [ACCEPTED SPECIES 9817:88735 nidx=null]
 + Ephydra oscitans Walker, 1849 [SYNONYM SPECIES 9820:6FPQZ nidx=null parent=72BRW]
Epicypta scatophora
 - Epicypta scatophora (Perris, 1847) [ACCEPTED SPECIES 9817:6G2FP nidx=null]
 + Epicypta scatophora Winnertz, 1863 [SYNONYM SPECIES 9820:6FQFM nidx=null parent=6FQW4]
Epimedium musschianum trifoliolato-binatum
 - Epimedium musschianum trifoliolato-binatum Koidz. [SYNONYM INFRASPECIFIC_NAME 9817:7H3W9 nidx=null parent=6G6N3]
 + Epimedium musschianum trifoliolato-binatum Koidz. [SYNONYM INFRASPECIFIC_NAME 9820:8Z634 nidx=null parent=6G6N3]
Epiphellia
 - Epiphellia [ACCEPTED GENUS 9817:4D9R nidx=null]
 + Epiphellia Carlgren, 1950 [ACCEPTED GENUS 9820:8YRBV nidx=null]
Epitonium rectilaminatum
 - Epitonium rectilaminatum (Dall, 1907) [ACCEPTED SPECIES 9817:7R86F nidx=null]
 + Epitonium rectilaminatum (Dall, 1907) [SYNONYM SPECIES 9820:6FWSB nidx=null parent=6G9KT]
Epitriptus inconstans
 - Epitriptus inconstans (Wiedemann, 1818) [ACCEPTED SPECIES 9817:6G97J nidx=null]
 + Epitriptus inconstans (Wiedemann, 1820) [ACCEPTED SPECIES 9820:8YSVZ nidx=null]
Epitriptus solox
 - Epitriptus solox Enderlein, 1934 [ACCEPTED SPECIES 9817:6FX7H nidx=null]
 + Epitriptus solox Enderlein, 1933 [ACCEPTED SPECIES 9820:8YSW2 nidx=null]
Epoicocladius seiryuopeus
 - Epoicocladius seiryuopeus Sasa, Suzuki & Sakai, 1998 [ACCEPTED SPECIES 9817:6G8X3 nidx=null]
 + Epoicocladius seiryuopeus Sasa, Suzuki & Sakai, 1988 [SYNONYM SPECIES 9820:8YSW3 nidx=null parent=8ZPRK]
Equus burchellii chapmanni
 - Equus burchellii chapmanni Layard, 1865 [SYNONYM SUBSPECIES 9817:8XXQS nidx=null parent=5H5HQ]
 + Equus burchellii chapmanni Layard, 1865 [SYNONYM SUBSPECIES 9820:8Z5P4 nidx=null parent=5H5HQ]
Eremochaetomima incompleta
 - Eremochaetomima incompleta Mostovski, 1996 [ACCEPTED SPECIES 9817:8C2WS nidx=null]
 + Eremochaetomima incompleta Mostovski, 1997 [ACCEPTED SPECIES 9820:8YSW9 nidx=null]
Eremomukha (Eremocreta) addita
 - Eremomukha (Eremocreta) addita Mostovski, 1996 [ACCEPTED SPECIES 9817:8C2WX nidx=null]
 + Eremomukha (Eremocreta) addita Mostovski, 1997 [ACCEPTED SPECIES 9820:8YSWB nidx=null]
Eremomukha (Eremocreta) posita
 - Eremomukha (Eremocreta) posita Mostovski, 1996 [ACCEPTED SPECIES 9817:8C2WY nidx=null]
 + Eremomukha (Eremocreta) posita Mostovski, 1997 [ACCEPTED SPECIES 9820:8YSWF nidx=null]
Eremomukha (Eremocreta) sorosi
 - Eremomukha (Eremocreta) sorosi Mostovski, 1996 [ACCEPTED SPECIES 9817:8C2WZ nidx=null]
 + Eremomukha (Eremocreta) sorosi Mostovski, 1997 [ACCEPTED SPECIES 9820:8YSWG nidx=null]
Eremomukha (Eremomukha) tsokotukha
 - Eremomukha (Eremomukha) tsokotukha Mostovski, 1996 [ACCEPTED SPECIES 9817:8C2X2 nidx=null]
 + Eremomukha (Eremomukha) tsokotukha Mostovski, 1997 [ACCEPTED SPECIES 9820:8YSWJ nidx=null]
Eremomukha addita
 - Eremomukha addita Mostovski, 1996 [SYNONYM SPECIES 9817:8C2X4 nidx=null parent=8C2WX]
 + Eremomukha addita Mostovski, 1997 [SYNONYM SPECIES 9820:8YSWC nidx=null parent=8YSWB]
Eremomukha posita
 - Eremomukha posita Mostovski, 1996 [SYNONYM SPECIES 9817:8C2X6 nidx=null parent=8C2WY]
 + Eremomukha posita Mostovski, 1997 [SYNONYM SPECIES 9820:8YSWD nidx=null parent=8YSWF]
Eremomukha sorosi
 - Eremomukha sorosi Mostovski, 1996 [SYNONYM SPECIES 9817:8C2X7 nidx=null parent=8C2WZ]
 + Eremomukha sorosi Mostovski, 1997 [SYNONYM SPECIES 9820:8YSWH nidx=null parent=8YSWG]
Eremomukha tsokotukha
 - Eremomukha tsokotukha Mostovski, 1996 [SYNONYM SPECIES 9817:8C2X8 nidx=null parent=8C2X2]
 + Eremomukha tsokotukha Mostovski, 1997 [SYNONYM SPECIES 9820:8YSWK nidx=null parent=8YSWJ]
Eremomyia vernalis
 - Eremomyia vernalis Huckett, 1924 [SYNONYM SPECIES 9817:887C2 nidx=null parent=8C4S9]
 + Eremomyia vernalis Huckett, 1924 [SYNONYM SPECIES 9820:6GFVF nidx=null parent=6HKHL]
Eremomyioides conscriptus
 - Eremomyioides conscriptus Huckett, 1965 [SYNONYM SPECIES 9817:887C3 nidx=null parent=8C4R2]
 + Eremomyioides conscriptus Huckett, 1965 [SYNONYM SPECIES 9820:6GG7F nidx=null parent=6HKFC]
Eremomyioides setosus
 - Eremomyioides setosus Huckett, 1965 [SYNONYM SPECIES 9817:88RQN nidx=null parent=8C4SJ]
 + Eremomyioides setosus Huckett, 1965 [SYNONYM SPECIES 9820:6GG8Z nidx=null parent=6HKGV]
Eremomyioides similis
 - Eremomyioides similis Malloch, 1920 [SYNONYM SPECIES 9817:887C7 nidx=null parent=8C4SM]
 + Eremomyioides similis Malloch, 1920 [SYNONYM SPECIES 9820:6GFXB nidx=null parent=6HKH8]
Eristalis claricella
 - Eristalis claricella Speiser, 1910 [SYNONYM SPECIES 9817:88RXK nidx=null parent=8FGYR]
 + Eristalis claricella Speiser, 1910 [SYNONYM SPECIES 9820:3B7NC nidx=null parent=4WJ9G]
Eristalis flatiparamerus
 - Eristalis flatiparamerus Li, 1999 [SYNONYM SPECIES 9817:88RYB nidx=null parent=8C27D]
 + Eristalis flatiparamerus Li, 1999 [ACCEPTED SPECIES 9820:3B7PX nidx=null]
Eristalis gladiparamerus
 - Eristalis gladiparamerus Li, 1999 [SYNONYM SPECIES 9817:88RYM nidx=null parent=8C27K]
 + Eristalis gladiparamerus Li, 1999 [ACCEPTED SPECIES 9820:3B7QP nidx=null]
Eristalis gypseisquama
 - Eristalis gypseisquama Speiser, 1910 [SYNONYM SPECIES 9817:88RYQ nidx=null parent=8FGYQ]
 + Eristalis gypseisquama Speiser, 1910 [SYNONYM SPECIES 9820:3B7QW nidx=null parent=4WJ9F]
Eristalis latevittatus
 - Eristalis latevittatus Bigot, 1858 [SYNONYM SPECIES 9817:88RZK nidx=null parent=8FGYP]
 + Eristalis latevittatus Bigot, 1858 [SYNONYM SPECIES 9820:3B7S8 nidx=null parent=6YFHV]
Eristalis nigriceps
 - Eristalis nigriceps Li, 1999 [SYNONYM SPECIES 9817:88RZX nidx=null parent=8C288]
 + Eristalis nigriceps Li, 1999 [ACCEPTED SPECIES 9820:3B7TD nidx=null]
Eristalis nigripennis
 - Eristalis nigripennis Macquart, 1855 [SYNONYM SPECIES 9817:88S22 nidx=null parent=8FGYQ]
 + Eristalis nigripennis Macquart, 1855 [SYNONYM SPECIES 9820:3B7TG nidx=null parent=4WJ9F]
Eristalis sulfurata
 - Eristalis sulfurata Speiser, 1911 [SYNONYM SPECIES 9817:88S3G nidx=null parent=8FGYQ]
 + Eristalis sulfurata Speiser, 1911 [SYNONYM SPECIES 9820:3B7WQ nidx=null parent=4WJ9F]
Eristalomyia caledonica
 - Eristalomyia caledonica Bigot, 1883 [SYNONYM SPECIES 9817:8C3Q2 nidx=null parent=5VXKJ]
 + Eristalomyia caledonica Bigot, 1884 [SYNONYM SPECIES 9820:8YSYV nidx=null parent=5VXKJ]
Eristalomyia laticornis
 - Eristalomyia laticornis Bigot, 1883 [SYNONYM SPECIES 9817:8C3Q8 nidx=null parent=JXQV]
 + Eristalomyia laticornis Bigot, 1884 [SYNONYM SPECIES 9820:8YSYW nidx=null parent=JXQV]
Eristalomyia quadrioculata
 - Eristalomyia quadrioculata Bigot, 1883 [SYNONYM SPECIES 9817:8C3QC nidx=null parent=8C3FP]
 + Eristalomyia quadrioculata Bigot, 1884 [SYNONYM SPECIES 9820:8YSYX nidx=null parent=8C3FP]
Eristalomyia rufonasuta
 - Eristalomyia rufonasuta Bigot, 1891 [SYNONYM SPECIES 9817:88S4G nidx=null parent=8FGYQ]
 + Eristalomyia rufonasuta Bigot, 1891 [SYNONYM SPECIES 9820:3B7YX nidx=null parent=4WJ9F]
Ethalia guamensis montrouzieri
 - Ethalia guamensis montrouzieri (Souverbie, 1858) [SYNONYM SUBSPECIES 9817:5H7DV nidx=null parent=3BKVJ]
 + Ethalia guamensis montrouzieri (Souverbie, 1859) [SYNONYM SUBSPECIES 9820:8YZN7 nidx=null parent=3BKVJ]
Eubranchipus
 - Eubranchipus Verrill, 1870 [ACCEPTED SUBGENUS 9817:8VXJ6 nidx=null]
 + Eubranchipus Verrill, 1870 [ACCEPTED SUBGENUS 9820:7NZ8D nidx=null]
Euchlora anoguttata dichropus
 - Euchlora anoguttata dichropus Blanchard, 1851 [SYNONYM INFRASPECIFIC_NAME 9817:7H3PM nidx=null parent=5FMSJ]
 + Euchlora anoguttata dichropus Blanchard, 1850 [SYNONYM INFRASPECIFIC_NAME 9820:8YX9X nidx=null parent=8YXCH]
Euchlora obsoleta
 - Euchlora obsoleta Blanchard, 1851 [SYNONYM SPECIES 9817:3BT56 nidx=null parent=5V6WB]
 + Euchlora obsoleta Blanchard, 1850 [SYNONYM SPECIES 9820:8YX4F nidx=null parent=8YTKS]
Euchlora xanthoptera
 - Euchlora xanthoptera Blanchard, 1851 [SYNONYM SPECIES 9817:3BT5M nidx=null parent=676RP]
 + Euchlora xanthoptera Blanchard, 1850 [SYNONYM SPECIES 9820:8YX4G nidx=null parent=8YTKV]
Euhybus eurypterus
 - Euhybus eurypterus Bezzi, 1909 [SYNONYM SPECIES 9817:88SFP nidx=null parent=8C44Q]
 + Euhybus eurypterus Bezzi, 1909 [ACCEPTED SPECIES 9820:3C8WY nidx=null]
Euhybus latipennis
 - Euhybus latipennis Bezzi, 1909 [SYNONYM SPECIES 9817:88SFQ nidx=null parent=8C44R]
 + Euhybus latipennis Bezzi, 1909 [ACCEPTED SPECIES 9820:3C8X7 nidx=null]
Euhybus loewi
 - Euhybus loewi Wheeler & Melander, 1901 [SYNONYM SPECIES 9817:88SFR nidx=null parent=8C44S]
 + Euhybus loewi Wheeler & Melander, 1901 [ACCEPTED SPECIES 9820:3C8X9 nidx=null]
Euhybus pilosiformis
 - Euhybus pilosiformis Bezzi, 1909 [SYNONYM SPECIES 9817:88SFS nidx=null parent=8C44V]
 + Euhybus pilosiformis Bezzi, 1909 [ACCEPTED SPECIES 9820:3C8XM nidx=null]
Euhybus pilosus
 - Euhybus pilosus Schiner, 1868 [SYNONYM SPECIES 9817:88SFT nidx=null parent=8C44W]
 + Euhybus pilosus Schiner, 1868 [ACCEPTED SPECIES 9820:3C8XN nidx=null]
Euhybus smithi
 - Euhybus smithi Wheeler & Melander, 1901 [SYNONYM SPECIES 9817:88SFV nidx=null parent=8C44X]
 + Euhybus smithi Wheeler & Melander, 1901 [ACCEPTED SPECIES 9820:3C8XX nidx=null]
Euhybus spinosus
 - Euhybus spinosus Curran, 1928 [SYNONYM SPECIES 9817:88SFW nidx=null parent=8C44Y]
 + Euhybus spinosus Curran, 1928 [ACCEPTED SPECIES 9820:3C8Y2 nidx=null]
Euhybus stigmaticus
 - Euhybus stigmaticus Schiner, 1868 [SYNONYM SPECIES 9817:88SFX nidx=null parent=8C44Z]
 + Euhybus stigmaticus Schiner, 1868 [ACCEPTED SPECIES 9820:3C8Y3 nidx=null]
Euhybus tabascensis
 - Euhybus tabascensis Wheeler & Melander, 1901 [SYNONYM SPECIES 9817:88SFY nidx=null parent=8C453]
 + Euhybus tabascensis Wheeler & Melander, 1901 [ACCEPTED SPECIES 9820:3C8Y7 nidx=null]
Euhybus yucatanus
 - Euhybus yucatanus Wheeler & Melander, 1901 [SYNONYM SPECIES 9817:88SFZ nidx=null parent=8C454]
 + Euhybus yucatanus Wheeler & Melander, 1901 [ACCEPTED SPECIES 9820:6H7NZ nidx=null]
Eukiefferiella amamipubescia
 - Eukiefferiella amamipubescia Sasa, 1991 [ACCEPTED SPECIES 9817:3C95G nidx=null]
 + Eukiefferiella amamipubescia Sasa, 1990 [ACCEPTED SPECIES 9820:8YSZ8 nidx=null]
Eukiefferiella seiryuefea
 - Eukiefferiella seiryuefea Sasa, Suzuki & Sakai, 1998 [ACCEPTED SPECIES 9817:3C983 nidx=null]
 + Eukiefferiella seiryuefea Sasa, Suzuki & Sakai, 1988 [ACCEPTED SPECIES 9820:8YSZF nidx=null]
Eukiefferiella seiryufegea
 - Eukiefferiella seiryufegea Sasa, Suzuki & Sakai, 1998 [ACCEPTED SPECIES 9817:3C984 nidx=null]
 + Eukiefferiella seiryufegea Sasa, Suzuki & Sakai, 1988 [SYNONYM SPECIES 9820:8YSZG nidx=null parent=8ZS5C]
Eumerus fulvicornis
 - Eumerus fulvicornis Macquart, 1829 [ACCEPTED SPECIES 9817:3CDVT nidx=null]
 + Eumerus fulvicornis Macquart, 1850 [AMBIGUOUS_SYNONYM SPECIES 9820:6GWR7 nidx=null parent=3CDXP]
 + Eumerus fulvicornis Macquart, 1834 [ACCEPTED SPECIES 9820:8YSZK nidx=null]
Eumerus nigrostriatus
 - Eumerus nigrostriatus Lambeck, 1968 [ACCEPTED SPECIES 9817:3CDYK nidx=null]
 + Eumerus nigrostriatus Lambeck, 1973 [ACCEPTED SPECIES 9820:8YSZL nidx=null]
Euphyodesmus vector
 - Euphyodesmus vector Chamberlin, 1941 [SYNONYM SPECIES 9817:8W984 nidx=null parent=354BV]
 + Euphyodesmus vector Chamberlin, 1941 [SYNONYM SPECIES 9820:8YX6F nidx=null parent=354BV]
Eupolia brocki
 - Eupolia brocki ? [SYNONYM SPECIES 9817:8W985 nidx=null parent=68D67]
 + Eupolia brocki ? [SYNONYM SPECIES 9820:8YX6G nidx=null parent=68D67]
Eupolia hemprichi
 - Eupolia hemprichi ? [SYNONYM SPECIES 9817:8W986 nidx=null parent=68D67]
 + Eupolia hemprichi ? [SYNONYM SPECIES 9820:8YX6H nidx=null parent=68D67]
Eupolia quinquelineata
 - Eupolia quinquelineata ? [SYNONYM SPECIES 9817:8W987 nidx=null parent=68D5Y]
 + Eupolia quinquelineata ? [SYNONYM SPECIES 9820:8YX6J nidx=null parent=68D5Y]
Eupteryx mellisae
 - Eupteryx mellisae Curtis, 1837 [SYNONYM SPECIES 9817:8WPNY nidx=null parent=3CYPH]
 + Eupteryx mellisae Curtis, 1837 [SYNONYM SPECIES 9820:8YXW7 nidx=null parent=3CYPH]
Eupteryx pulchelus
 - Eupteryx pulchelus Fallén, 1806 [SYNONYM SPECIES 9817:8WPPM nidx=null parent=3CZDV]
 + Eupteryx pulchelus Fallén, 1806 [SYNONYM SPECIES 9820:8YXWD nidx=null parent=3CZDV]
Eurimyia
 - Eurimyia [ACCEPTED SUBGENUS 9817:89SBP nidx=null]
 + Eurimyia [ACCEPTED GENUS 9820:8YQRZ nidx=null]
Euryaspis
 - Euryaspis Blanchard, 1851 [ACCEPTED GENUS 9817:4GP5 nidx=null]
 + Euryaspis Blanchard, 1850 [ACCEPTED GENUS 9820:8YX2K nidx=null]
Euryaspis gaudichaudi
 - Euryaspis gaudichaudi Blanchard, 1851 [ACCEPTED SPECIES 9817:3D34Q nidx=null]
 + Euryaspis gaudichaudi Blanchard, 1850 [ACCEPTED SPECIES 9820:8YX4H nidx=null]
Eurycnemus amamiapiatus
 - Eurycnemus amamiapiatus Sasa, 1991 [ACCEPTED SPECIES 9817:3D3QD nidx=null]
 + Eurycnemus amamiapiatus Sasa, 1990 [SYNONYM SPECIES 9820:8YT26 nidx=null parent=8ZPGW]
Eutrichota aertaica
 - Eutrichota aertaica Qian & Fan, 1981 [SYNONYM SPECIES 9817:88T8T nidx=null parent=8C4QQ]
 + Eutrichota aertaica Qian & Fan, 1981 [ACCEPTED SPECIES 9820:6HKDW nidx=null]
Eutrichota brevirostris
 - Eutrichota brevirostris Fan, 1993 [SYNONYM SPECIES 9817:88T8V nidx=null parent=8C4TH]
 + Eutrichota brevirostris Fan, 1993 [ACCEPTED SPECIES 9820:6HKFF nidx=null]
Eutrichota clavata
 - Eutrichota clavata Fan, 1993 [SYNONYM SPECIES 9817:88T8W nidx=null parent=8C4T9]
 + Eutrichota clavata Fan, 1993 [ACCEPTED SPECIES 9820:6HKFJ nidx=null]
Eutrichota epiphallica
 - Eutrichota epiphallica Griffiths, 1984 [SYNONYM SPECIES 9817:888Y4 nidx=null parent=8C4R7]
 + Eutrichota epiphallica Griffiths, 1984 [ACCEPTED SPECIES 9820:6HKF8 nidx=null]
Eutrichota exomma
 - Eutrichota exomma Séguy, 1923 [SYNONYM SPECIES 9817:88T8X nidx=null parent=8C4RM]
 + Eutrichota exomma Séguy, 1923 [SYNONYM SPECIES 9820:6HKF5 nidx=null parent=6HKG8]
Eutrichota fanjingensis
 - Eutrichota fanjingensis Wei, 2006 [SYNONYM SPECIES 9817:88T8Y nidx=null parent=8C4TM]
 + Eutrichota fanjingensis Wei, 2006 [ACCEPTED SPECIES 9820:6HKF6 nidx=null]
Eutrichota fuscigenua
 - Eutrichota fuscigenua Feng, 1987 [SYNONYM SPECIES 9817:88T8Z nidx=null parent=8C4TN]
 + Eutrichota fuscigenua Feng, 1987 [ACCEPTED SPECIES 9820:6HKGH nidx=null]
Eutrichota geomyis
 - Eutrichota geomyis Griffiths, 1984 [SYNONYM SPECIES 9817:888Y5 nidx=null parent=8C4RF]
 + Eutrichota geomyis Griffiths, 1984 [ACCEPTED SPECIES 9820:6HKGG nidx=null]
Eutrichota hamata
 - Eutrichota hamata Qian & Fan, 1981 [SYNONYM SPECIES 9817:88T92 nidx=null parent=8C4RH]
 + Eutrichota hamata Qian & Fan, 1981 [ACCEPTED SPECIES 9820:6HKGK nidx=null]
Eutrichota interior
 - Eutrichota interior Griffiths, 1984 [SYNONYM SPECIES 9817:888Y6 nidx=null parent=8C4RN]
 + Eutrichota interior Griffiths, 1984 [ACCEPTED SPECIES 9820:6HKFX nidx=null]
Eutrichota leptinophalla
 - Eutrichota leptinophalla Fan, 1993 [SYNONYM SPECIES 9817:88T93 nidx=null parent=8C4TC]
 + Eutrichota leptinophalla Fan, 1993 [ACCEPTED SPECIES 9820:6HKFV nidx=null]
Eutrichota occidentalis
 - Eutrichota occidentalis Griffiths, 1984 [SYNONYM SPECIES 9817:888Y7 nidx=null parent=8C4S5]
 + Eutrichota occidentalis Griffiths, 1984 [ACCEPTED SPECIES 9820:6HKHJ nidx=null]
Eutrichota processualis
 - Eutrichota processualis Griffiths, 1984 [SYNONYM SPECIES 9817:888Y8 nidx=null parent=8C4SF]
 + Eutrichota processualis Griffiths, 1984 [ACCEPTED SPECIES 9820:6HKHD nidx=null]
Eutrichota punctata
 - Eutrichota punctata Griffiths, 1984 [SYNONYM SPECIES 9817:888Y9 nidx=null parent=8C4SG]
 + Eutrichota punctata Griffiths, 1984 [ACCEPTED SPECIES 9820:6HKGX nidx=null]
Eutrichota quadrirecta
 - Eutrichota quadrirecta Qian & Fan, 1981 [SYNONYM SPECIES 9817:88T95 nidx=null parent=8C4SH]
 + Eutrichota quadrirecta Qian & Fan, 1981 [ACCEPTED SPECIES 9820:6HKH9 nidx=null]
Eutrichota simillima
 - Eutrichota simillima Griffiths, 1984 [SYNONYM SPECIES 9817:888YB nidx=null parent=8C4SM]
 + Eutrichota simillima Griffiths, 1984 [ACCEPTED SPECIES 9820:6HKH8 nidx=null]
Eutrichota texana
 - Eutrichota texana Griffiths, 1984 [SYNONYM SPECIES 9817:888YC nidx=null parent=8C4T3]
 + Eutrichota texana Griffiths, 1984 [ACCEPTED SPECIES 9820:6HKH6 nidx=null]
Eutrichota woodi
 - Eutrichota woodi Griffiths, 1984 [SYNONYM SPECIES 9817:888YD nidx=null parent=8C4QN]
 + Eutrichota woodi Griffiths, 1984 [ACCEPTED SPECIES 9820:6HKH4 nidx=null]
Evaza demeijeri
 - Evaza demeijeri Brunetti [ACCEPTED SPECIES 9817:888Z5 nidx=null]
 + Evaza demeijeri Brunetti, 1923 [SYNONYM SPECIES 9820:3DH6F nidx=null parent=3DH6G]
Exechia (Exechiopsis) intersecta
 - Exechia (Exechiopsis) intersecta (Meigen, 1818) [ACCEPTED SPECIES 9817:8C4XL nidx=null]
 + Exechia (Exechiopsis) intersecta (Wiedemann, 1818) [ACCEPTED SPECIES 9820:8YT2N nidx=null]
Exechia borealis
 - Exechia borealis Van Duzee, 1928 [ACCEPTED SPECIES 9817:3DK8F nidx=null]
 + Exechia borealis Lundström, 1912 [SYNONYM SPECIES 9820:6HLF4 nidx=null parent=3DKCK]
Exechia rufithorax
 - Exechia rufithorax Wulp, 1874 [ACCEPTED SPECIES 9817:3DKBV nidx=null]
 + Exechia rufithorax Wulp, 1875 [ACCEPTED SPECIES 9820:8YT2R nidx=null]
Exoprosopa luteicosta
 - Exoprosopa luteicosta Bezzi, 1924 [ACCEPTED SPECIES 9817:3DPH6 nidx=null]
 + Exoprosopa luteicosta Bezzi, 1921 [SYNONYM SPECIES 9820:8YT2Z nidx=null parent=8BRFX]
Exosoma erythraea
 - Exosoma erythraea Bezzi, 1938 [SYNONYM SPECIES 9817:3DQ4K nidx=null parent=3VMGH]
 + Exosoma erythraea Séguy, 1938 [SYNONYM SPECIES 9820:8YT37 nidx=null parent=3VMGH]
Fainia kagerana
 - Fainia kagerana Lehrer, 2008 [ACCEPTED SPECIES 9817:3DSNX nidx=null]
 + Fainia kagerana Lehrer, 2007 [SYNONYM SPECIES 9820:8YT38 nidx=null parent=6HNYH]
Fannia admirabilis
 - Fannia admirabilis Albququerque [ACCEPTED SPECIES 9817:6HP78 nidx=null]
 + Fannia admirabilis Albuquerque, 1958 [ACCEPTED SPECIES 9820:8YT3B nidx=null]
Fannia setosa
 - Fannia setosa (Bigot, 1883) [ACCEPTED SPECIES 9817:6HQ9W nidx=null]
 + Fannia setosa (Bigot, 1885) [ACCEPTED SPECIES 9820:8YT3F nidx=null]
Faristodiplosis aculeata
 - Faristodiplosis aculeata Fedotova, 2005 [ACCEPTED SPECIES 9817:3DV8G nidx=null]
 + Faristodiplosis aculeata Fedotova, 2006 [ACCEPTED SPECIES 9820:8YT3H nidx=null]
Faristodiplosis aliformis
 - Faristodiplosis aliformis Fedotova, 2005 [ACCEPTED SPECIES 9817:3DV8H nidx=null]
 + Faristodiplosis aliformis Fedotova, 2006 [ACCEPTED SPECIES 9820:8YT3J nidx=null]
Faristodiplosis collaris
 - Faristodiplosis collaris Fedotova, 2005 [ACCEPTED SPECIES 9817:3DV8J nidx=null]
 + Faristodiplosis collaris Fedotova, 2006 [ACCEPTED SPECIES 9820:8YT3L nidx=null]
Faristodiplosis furcata
 - Faristodiplosis furcata Fedotova, 2005 [ACCEPTED SPECIES 9817:3DV8K nidx=null]
 + Faristodiplosis furcata Fedotova, 2006 [ACCEPTED SPECIES 9820:8YT3N nidx=null]
Faristodiplosis glochidiata
 - Faristodiplosis glochidiata Fedotova, 2005 [ACCEPTED SPECIES 9817:3DV8L nidx=null]
 + Faristodiplosis glochidiata Fedotova, 2006 [ACCEPTED SPECIES 9820:8YT3P nidx=null]
Faristodiplosis scalaris
 - Faristodiplosis scalaris Fedotova, 2005 [ACCEPTED SPECIES 9817:3DV8M nidx=null]
 + Faristodiplosis scalaris Fedotova, 2006 [ACCEPTED SPECIES 9820:8YT3Q nidx=null]
Faristodiplosis spathulata
 - Faristodiplosis spathulata Fedotova, 2005 [ACCEPTED SPECIES 9817:3DV8N nidx=null]
 + Faristodiplosis spathulata Fedotova, 2006 [ACCEPTED SPECIES 9820:8YT3R nidx=null]
Faristodiplosis stratiosa
 - Faristodiplosis stratiosa Fedotova, 2005 [ACCEPTED SPECIES 9817:3DV8P nidx=null]
 + Faristodiplosis stratiosa Fedotova, 2006 [ACCEPTED SPECIES 9820:8YT3S nidx=null]
Faristodiplosis urceolata
 - Faristodiplosis urceolata Fedotova, 2005 [ACCEPTED SPECIES 9817:3DV8Q nidx=null]
 + Faristodiplosis urceolata Fedotova, 2006 [ACCEPTED SPECIES 9820:8YT3T nidx=null]
Fidena (Fidena) pallidula
 - Fidena (Fidena) pallidula Kröber, 1931 [ACCEPTED SPECIES 9817:8C5N2 nidx=null]
 + Fidena (Fidena) pallidula Kröber, 1933 [ACCEPTED SPECIES 9820:8YT3V nidx=null]
Fitzcambarus
 - Fitzcambarus Hobbs, 1983 [ACCEPTED SUBGENUS 9817:8W5CM nidx=null]
 + Fitzcambarus Hobbs, 1983 [ACCEPTED SUBGENUS 9820:7Q7J3 nidx=null]
Flabellamon pretzmanni
 - Flabellamon pretzmanni P.K.L. Ng, 1996 [SYNONYM SPECIES 9817:6J6ZY nidx=null parent=6J6ZZ]
 + Flabellamon pretzmanni PKL Ng, 1996 [SYNONYM SPECIES 9820:8YX77 nidx=null parent=6J6ZZ]
Folsomia fimetaria
 - Folsomia fimetaria [AMBIGUOUS_SYNONYM SPECIES 9817:6JBGG nidx=null parent=6JBBB]
 + Folsomia fimetaria Leruth, R, 1939 [SYNONYM SPECIES 9820:8YXYH nidx=null parent=6JBFM]
 + Folsomia fimetaria Stach, J, 1947 [SYNONYM SPECIES 9820:8YXYJ nidx=null parent=6JBBB]
 + Folsomia fimetaria Uchida, 1940 [SYNONYM SPECIES 9820:8YXYK nidx=null parent=6JBFM]
 + Folsomia fimetaria Christiansen, K & Bellinger, P, 1998 [SYNONYM SPECIES 9820:8YXYL nidx=null parent=6JBBB]
 + Folsomia fimetaria Geyer & Mann, 1940 [SYNONYM SPECIES 9820:8YXYM nidx=null parent=6JBFM]
 + Folsomia fimetaria Womersley, H, 1939 [SYNONYM SPECIES 9820:8YXYN nidx=null parent=6JBFM]
 + Folsomia fimetaria Womersley, 1934 [SYNONYM SPECIES 9820:8YXYP nidx=null parent=6JBFM]
 + Folsomia fimetaria Bonet, F, 1931 [SYNONYM SPECIES 9820:8YXYQ nidx=null parent=6JBFM]
 + Folsomia fimetaria Salmon, JT, 1964 [SYNONYM SPECIES 9820:8YXYR nidx=null parent=6JBBB]
 + Folsomia fimetaria Uchida, 1952 [SYNONYM SPECIES 9820:8YXYS nidx=null parent=6JBFM]
 + Folsomia fimetaria Maynard, EA, 1951 [SYNONYM SPECIES 9820:8YXYT nidx=null parent=6JBBB]
 + Folsomia fimetaria Wolf, B, 1938 [SYNONYM SPECIES 9820:8YXYV nidx=null parent=6JBFM]
 + Folsomia fimetaria Folsom, 1932 [SYNONYM SPECIES 9820:8YXYW nidx=null parent=6JBFM]
 + Folsomia fimetaria Folsom, JW, 1937 [SYNONYM SPECIES 9820:8YXYX nidx=null parent=6JBBB]
 + Folsomia fimetaria Yosii, 1939 [SYNONYM SPECIES 9820:8YXYY nidx=null parent=6JBFM]
 + Folsomia fimetaria Stach, 1929 [SYNONYM SPECIES 9820:8YXYZ nidx=null parent=6JBFM]
Folsomides parvus
 - Folsomides parvus Folsom JW in Mills, 1934: 43-45 [SYNONYM SPECIES 9817:6JD8S nidx=null parent=6JCX4]
 + Folsomides parvus Prabhoo, 1971 [SYNONYM SPECIES 9820:8YY2D nidx=null parent=6JD8Q]
Folsomides stachi
 - Folsomides stachi Folsom JW in Mills, 1934: 45-46 [SYNONYM SPECIES 9817:6JD8V nidx=null parent=6JCX4]
 + Folsomides stachi Cassagnau, P & Delamare Deboutteville, C, 1955 [AMBIGUOUS_SYNONYM SPECIES 9820:8YY2M nidx=null parent=6JBC6]
 + Folsomides stachi Fjellberg, A, 1993 [AMBIGUOUS_SYNONYM SPECIES 9820:8YY2N nidx=null parent=6JCX4]
 + Folsomides stachi Potapov, M, 2001 [AMBIGUOUS_SYNONYM SPECIES 9820:8YY2P nidx=null parent=6JCX4]
Forcipomyia (Forcipomyia) myrmecophila
 - Forcipomyia (Forcipomyia) myrmecophila (Egger, 1863) [ACCEPTED SPECIES 9817:8C64X nidx=null]
 + Forcipomyia (Forcipomyia) myrmecophila (Egger, 1864) [ACCEPTED SPECIES 9820:8YT42 nidx=null]
Forcipomyia (Metaforcipomyia) fuliginosa
 - Forcipomyia (Metaforcipomyia) fuliginosa (Meigen, 1818) [ACCEPTED SPECIES 9817:8C6JM nidx=null]
 + Forcipomyia (Metaforcipomyia) fuliginosa (Wiedemann, 1818) [ACCEPTED SPECIES 9820:8YT43 nidx=null]
Forcipomyia lenis
 - Forcipomyia lenis Liu & Yu, 2006 [SYNONYM SPECIES 9817:8H32D nidx=null parent=8C6SD]
 + Forcipomyia lenis Liu & Yu, 2005 [SYNONYM SPECIES 9820:8YT44 nidx=null parent=8C6SD]
Friesea wilkeyi
 - Friesea wilkeyi Christiansen, K & Bellinger, P, 1973: 393 [ACCEPTED SPECIES 9817:6JPQF nidx=null]
 + Friesea wilkeyi Christiansen, K & Bellinger, P, 1973 [ACCEPTED SPECIES 9820:8YY2X nidx=null]
Galeidiplosis pleuridens
 - Galeidiplosis pleuridens Fedotova, 2005 [ACCEPTED SPECIES 9817:3F3G7 nidx=null]
 + Galeidiplosis pleuridens Fedotova, 2006 [ACCEPTED SPECIES 9820:8YT4D nidx=null]
Galeidiplosis quadricoxita
 - Galeidiplosis quadricoxita Fedotova, 2005 [ACCEPTED SPECIES 9817:3F3G8 nidx=null]
 + Galeidiplosis quadricoxita Fedotova, 2006 [ACCEPTED SPECIES 9820:8YT4F nidx=null]
Garthambrus posidon
 - Garthambrus posidon P.K.L. Ng, 1996 [ACCEPTED SPECIES 9817:3FBTG nidx=null]
 + Garthambrus posidon PKL Ng, 1996 [ACCEPTED SPECIES 9820:8YX8W nidx=null]
Gena lutea
 - Gena lutea A. Adams, 1854 [SYNONYM SPECIES 9817:3FKFL nidx=null parent=52TTH]
 + Gena lutea auctt, non Patella lutea Linnaeus, 1758 [SYNONYM SPECIES 9820:8YX93 nidx=null parent=6ZVBJ]
Geosesarma katibas
 - Geosesarma katibas P.K.L. Ng, 1995 [ACCEPTED SPECIES 9817:3FS9F nidx=null]
 + Geosesarma katibas PKL Ng, 1995 [ACCEPTED SPECIES 9820:8YX9B nidx=null]
Geotrochatella insignis
 - Geotrochatella insignis Dautzenberg, 1895 [ACCEPTED SPECIES 9817:7RDWJ nidx=null]
 + Geotrochatella insignis Dautzenberg, 1896 [ACCEPTED SPECIES 9820:8Z6DB nidx=null]
Geotrochatella jourdyi
 - Geotrochatella jourdyi Dautzenberg, 1895 [ACCEPTED SPECIES 9817:7RDWK nidx=null]
 + Geotrochatella jourdyi Dautzenberg, 1896 [ACCEPTED SPECIES 9820:8Z6DC nidx=null]
Geotrochatella nogieri
 - Geotrochatella nogieri (Dautzenberg & d'Hamonville, 1887) [ACCEPTED SPECIES 9817:8V2PB nidx=null]
 + Geotrochatella nogieri (Dautzenberg & d'Hamonville, 1888) [ACCEPTED SPECIES 9820:8Z6DD nidx=null]
Geotrogus inflatus deserticola
 - Geotrogus inflatus deserticola (Blanchard, 1851) [ACCEPTED SUBSPECIES 9817:5HG5P nidx=null]
 + Geotrogus inflatus deserticola (Blanchard, 1850) [ACCEPTED SUBSPECIES 9820:8YXCS nidx=null]
Gerocyptera tristis
 - Gerocyptera tristis (Bigot, 1875) [ACCEPTED SPECIES 9817:3FWQJ nidx=null]
 + Gerocyptera tristis (Bigot, 1878) [ACCEPTED SPECIES 9820:8YT4K nidx=null]
Gigantodax abalosi
 - Gigantodax abalosi Wygodzinsky, 1958 [SYNONYM SPECIES 9817:88B9P nidx=null parent=8C7XD]
 + Gigantodax abalosi Wygodzinsky, 1958 [ACCEPTED SPECIES 9820:6KFMJ nidx=null]
Gigantodax bettyae
 - Gigantodax bettyae Wygodzinsky, 1974 [SYNONYM SPECIES 9817:88B9Q nidx=null parent=8C7XJ]
 + Gigantodax bettyae Wygodzinsky, 1974 [ACCEPTED SPECIES 9820:3G26N nidx=null]
Gigantodax bolivianus
 - Gigantodax bolivianus Enderlein, 1925 [SYNONYM SPECIES 9817:88B9R nidx=null parent=8C7XK]
 + Gigantodax bolivianus Enderlein, 1925 [ACCEPTED SPECIES 9820:3G26Q nidx=null]
Gigantodax cervicornis
 - Gigantodax cervicornis Wygodzinsky, 1974 [SYNONYM SPECIES 9817:88X4L nidx=null parent=8C7XN]
 + Gigantodax cervicornis Wygodzinsky, 1974 [ACCEPTED SPECIES 9820:3G26V nidx=null]
Gigantodax conviti
 - Gigantodax conviti Ramírez-Pérez, 1980 [SYNONYM SPECIES 9817:88X4N nidx=null parent=8C7XQ]
 + Gigantodax conviti Ramírez-Pérez, 1980 [ACCEPTED SPECIES 9820:3G272 nidx=null]
Gigantodax corniculatus
 - Gigantodax corniculatus Wygodzinsky, 1974 [SYNONYM SPECIES 9817:88B9S nidx=null parent=8C7XR]
 + Gigantodax corniculatus Wygodzinsky, 1974 [ACCEPTED SPECIES 9820:3G274 nidx=null]
Gigantodax horcotiani
 - Gigantodax horcotiani Wygodzinsky, 1949 [SYNONYM SPECIES 9817:88X4P nidx=null parent=8C7XV]
 + Gigantodax horcotiani Wygodzinsky, 1949 [ACCEPTED SPECIES 9820:3G27F nidx=null]
Gigantodax igniculus
 - Gigantodax igniculus Coscarón & Wygodzinsky, 1962 [SYNONYM SPECIES 9817:88X4Q nidx=null parent=8C7XW]
 + Gigantodax igniculus Coscarón & Wygodzinsky, 1962 [ACCEPTED SPECIES 9820:3G27G nidx=null]
Gigantodax impossibilis
 - Gigantodax impossibilis Wygodzinsky, 1974 [SYNONYM SPECIES 9817:88X4R nidx=null parent=8C7XX]
 + Gigantodax impossibilis Wygodzinsky, 1974 [ACCEPTED SPECIES 9820:3G27H nidx=null]
Gigantodax kuscheli
 - Gigantodax kuscheli Wygodzinsky, 1952 [SYNONYM SPECIES 9817:88X4S nidx=null parent=8C7XY]
 + Gigantodax kuscheli Wygodzinsky, 1952 [ACCEPTED SPECIES 9820:3G27M nidx=null]
Gigantodax ortizi
 - Gigantodax ortizi Wygodzinsky, 1973 [SYNONYM SPECIES 9817:88B9T nidx=null parent=8C7Y3]
 + Gigantodax ortizi Wygodzinsky, 1973 [ACCEPTED SPECIES 9820:3G282 nidx=null]
Gigantodax vargasi
 - Gigantodax vargasi León, 1945 [SYNONYM SPECIES 9817:88X4T nidx=null parent=8C7Y8]
 + Gigantodax vargasi León, 1945 [ACCEPTED SPECIES 9820:3G28G nidx=null]
Gigantodax wittmeri
 - Gigantodax wittmeri Wygodzinsky, 1951 [SYNONYM SPECIES 9817:88X4W nidx=null parent=8C7YB]
 + Gigantodax wittmeri Wygodzinsky, 1951 [ACCEPTED SPECIES 9820:3G28L nidx=null]
Gigantodax wrighti
 - Gigantodax wrighti Vargas & Martínez Palacios, 1944 [SYNONYM SPECIES 9817:88X4X nidx=null parent=8C7YC]
 + Gigantodax wrighti (Vargas, Martínez Palacios & Días Nájera, 1944) [ACCEPTED SPECIES 9820:3G28M nidx=null]
Glycymeris pectinoides
 - Glycymeris pectinoides Verco, 1907 [SYNONYM SPECIES 9817:3GFGN nidx=null parent=59KFR]
 + Glycymeris pectinoides [SYNONYM SPECIES 9820:8YX9T nidx=null parent=59KFR]
Glyptothorax madraspatanus
 - Glyptothorax madraspatanus (Day, 1873) [ACCEPTED SPECIES 9817:3GJDM nidx=null]
 + Glyptothorax madraspatanus (Day, 1873) [ACCEPTED SPECIES 9820:8YX9W nidx=null]
Gnathonemus petersii
 - Gnathonemus petersii (Günther, 1862) [ACCEPTED SPECIES 9817:8V8GG nidx=null]
 + Gnathonemus petersii (Günther, 1862) [ACCEPTED SPECIES 9820:8YX9Z nidx=null]
Golfingia
 - Golfingia Lankester, 1885 [ACCEPTED SUBGENUS 9817:8VXX9 nidx=null]
 + Golfingia Lankester, 1885 [ACCEPTED SUBGENUS 9820:7P42M nidx=null]
Gonia bicincta
 - Gonia bicincta Šuster, 1929 [ACCEPTED SPECIES 9817:6L2V7 nidx=null]
 + Gonia bicincta Meigen, 1835 [SYNONYM SPECIES 9820:8YT4W nidx=null parent=3GV2P]
Gonia exul
 - Gonia exul Williston [ACCEPTED SPECIES 9817:88BDX nidx=null]
 + Gonia exul Williston, 1887 [SYNONYM SPECIES 9820:3GV3K nidx=null parent=3GV5C]
Gonia mexicana
 - Gonia mexicana Wulp, 1890 [ACCEPTED SPECIES 9817:6KR78 nidx=null]
 + Gonia mexicana Wulp, 1888 [ACCEPTED SPECIES 9820:8YT4X nidx=null]
Goniophyto tibialis
 - Goniophyto tibialis Hennig [ACCEPTED SPECIES 9817:88XGP nidx=null]
 + Goniophyto tibialis Hennig, 1941 [SYNONYM SPECIES 9820:3GX8M nidx=null parent=3GX8H]
Gracilopsina sinespina
 - Gracilopsina sinespina Feijen & Feijen, 2017 [ACCEPTED SPECIES 9817:8C8LW nidx=null]
 + Gracilopsina sinespina Feijen, Feijen & Feijen, 2018 [ACCEPTED SPECIES 9820:8YT52 nidx=null]
Graptomyza atripes
 - Graptomyza atripes Bigot, 1883 [ACCEPTED SPECIES 9817:3HB4B nidx=null]
 + Graptomyza atripes Bigot, 1884 [ACCEPTED SPECIES 9820:8YT5M nidx=null]
Guyanemidae
 - Guyanemidae Petter, 1975 [ACCEPTED FAMILY 9817:8FV7J nidx=null]
 + Guyanemidae Petter, 1974 [ACCEPTED FAMILY 9820:8YQYS nidx=null]
Gymnogaster
 - Gymnogaster Blanchard, 1851 [ACCEPTED GENUS 9817:62TXD nidx=null]
 + Gymnogaster Blanchard, 1850 [ACCEPTED GENUS 9820:8YRJC nidx=null]
Haematopota nigricolor
 - Haematopota nigricolor Dias, 1956 [ACCEPTED SPECIES 9817:3J8PY nidx=null]
 + Haematopota nigricolor Dias, 1957 [SYNONYM SPECIES 9820:8YT5T nidx=null parent=3J8J9]
Halobates
 - Halobates Eschscholtz, 1822 [ACCEPTED SUBGENUS 9817:8VY3D nidx=null]
 + Halobates Eschscholtz, 1822 [ACCEPTED SUBGENUS 9820:7P57Y nidx=null]
Hammomyia setigera
 - Hammomyia setigera Johannsen, 1916 [SYNONYM SPECIES 9817:88BS4 nidx=null parent=8B8M9]
 + Hammomyia setigera Johannsen, 1916 [SYNONYM SPECIES 9820:3JJ89 nidx=null parent=MMQT]
Handschinurida fluminensis
 - Handschinurida fluminensis (Arlé, 1939 tt) [ACCEPTED SPECIES 9817:3JJSP nidx=null]
 + Handschinurida fluminensis (Arlé, 1939) [ACCEPTED SPECIES 9820:8Z6DV nidx=null]
Haploplana
 - Haploplana Bock, 1913 [ACCEPTED GENUS 9817:7P5CQ nidx=null]
 + Haploplana Laidlaw, 1903 [ACCEPTED GENUS 9820:8YRYY nidx=null]
Harrovia longipes
 - Harrovia longipes H.-L. Chen & Z.X. Xu, 1991 [AMBIGUOUS_SYNONYM SPECIES 9817:6LG5W nidx=null parent=6LFTP]
 + Harrovia longipes HL Chen & ZX Xu, 1991 [SYNONYM SPECIES 9820:8YXG2 nidx=null parent=6LFTP]
Hayesomyia
 - Hayesomyia [ACCEPTED GENUS 9817:635TG nidx=null]
 + Hayesomyia [ACCEPTED SUBGENUS 9820:8YQFG nidx=null]
Hebesoma
 - Hebesoma Van Cleave, 1928 [ACCEPTED SUBGENUS 9817:8VY4R nidx=null]
 + Hebesoma Van Cleave, 1928 [ACCEPTED SUBGENUS 9820:7P5JK nidx=null]
Heissius
 - Heissius Zettel, 2006 [ACCEPTED SUBGENUS 9817:8W5CR nidx=null]
 + Heissius Zettel, 2006 [ACCEPTED SUBGENUS 9820:7Q7KC nidx=null]
Helianthemum grandiflorum glabrum
 - Helianthemum grandiflorum glabrum (Koch) Holub [SYNONYM INFRASPECIFIC_NAME 9817:8XBRJ nidx=null parent=5HM25]
 + Helianthemum grandiflorum glabrum (Koch) Holub [SYNONYM INFRASPECIFIC_NAME 9820:8Z2VS nidx=null parent=5HM25]
Helianthemum hirtum var. fontqueri
 - Helianthemum hirtum var. fontqueri (Sennen) Losa & Rivas Goday [SYNONYM VARIETY 9817:8YF8W nidx=null parent=5HLZC]
 + Helianthemum hirtum var. fontqueri (Sennen) Losa & Rivas Goday [SYNONYM VARIETY 9820:8Z7WF nidx=null parent=5HLZC]
Helianthemum pilosum var. fontiquerianum
 - Helianthemum pilosum var. fontiquerianum (Sennen) Losa & Rivas Goday [SYNONYM VARIETY 9817:8YF8X nidx=null parent=3K5KM]
 + Helianthemum pilosum var. fontiquerianum (Sennen) Losa & Rivas Goday [SYNONYM VARIETY 9820:8Z7WG nidx=null parent=3K5KM]
Helina dianica
 - Helina dianica Qian, 2006 [ACCEPTED SPECIES 9817:6LJR5 nidx=null]
 + Helina dianica Qian & Feng, 2005 [SYNONYM SPECIES 9820:8YT5Y nidx=null parent=6LJGS]
Helina guica
 - Helina guica Qian, 2006 [ACCEPTED SPECIES 9817:6LK3H nidx=null]
 + Helina guica Qian & Feng, 2005 [ACCEPTED SPECIES 9820:8YT62 nidx=null]
Helina meiguica
 - Helina meiguica Qian, 2006 [ACCEPTED SPECIES 9817:6LK5C nidx=null]
 + Helina meiguica Qian & Feng, 2005 [ACCEPTED SPECIES 9820:8YT63 nidx=null]
Helina tibialis
 - Helina tibialis (Curtis, 1837) [ACCEPTED SPECIES 9817:88YQP nidx=null]
 + Helina tibialis Robineau-Desvoidy, 1830 [SYNONYM SPECIES 9820:6LJM6 nidx=null parent=6LJHJ]
Helix depressiformis
 - Helix depressiformis Pease, 1864 [SYNONYM SPECIES 9817:7RL8F nidx=null parent=7TFSY]
 + Helix depressiformis Pease, 1865 [SYNONYM SPECIES 9820:8Z58Y nidx=null parent=7TFSY]
Helix helicinoides
 - Helix helicinoides L. Pfeiffer, 1849 [SYNONYM SPECIES 9817:8R769 nidx=null parent=8R7XR]
 + Helix helicinoides L. Pfeiffer, 1849 [SYNONYM SPECIES 9820:7RLLQ nidx=null parent=7R2CK]
Helix omicron
 - Helix omicron Pfeiffer, 1851 [SYNONYM SPECIES 9817:6LLXC nidx=null parent=45VHS]
 + Helix omicron L. Pfeiffer, 1852 [SYNONYM SPECIES 9820:8YXGK nidx=null parent=8YY3P]
Helix proserpinula
 - Helix proserpinula L. Pfeiffer, 1851 [SYNONYM SPECIES 9817:86YX3 nidx=null parent=86WGD]
 + Helix proserpinula L. Pfeiffer, 1852 [SYNONYM SPECIES 9820:8Z6F4 nidx=null parent=86WGD]
Helix scalarina
 - Helix scalarina L. Pfeiffer, 1851 [SYNONYM SPECIES 9817:6LLQ5 nidx=null parent=5ZTGH]
 + Helix scalarina L. Pfeiffer, 1852 [SYNONYM SPECIES 9820:8YXGL nidx=null parent=8YWLB]
Helophilus aesacus
 - Helophilus aesacus Walker, 1849 [SYNONYM SPECIES 9817:88YTT nidx=null parent=8FGYP]
 + Helophilus aesacus Walker, 1849 [SYNONYM SPECIES 9820:6LMXN nidx=null parent=6YFHV]
Hercostomus (Hercostomus) armenorum
 - Hercostomus (Hercostomus) armenorum Stackelberg, 1934 [ACCEPTED SPECIES 9817:8CB95 nidx=null]
 + Hercostomus (Hercostomus) armenorum Stackelberg, 1933 [ACCEPTED SPECIES 9820:8YT6K nidx=null]
Hercostomus (Hercostomus) caucasicus
 - Hercostomus (Hercostomus) caucasicus Stackelberg, 1934 [ACCEPTED SPECIES 9817:8CB9S nidx=null]
 + Hercostomus (Hercostomus) caucasicus Stackelberg, 1933 [ACCEPTED SPECIES 9820:8YT6L nidx=null]
Hercostomus (Hercostomus) crassivena
 - Hercostomus (Hercostomus) crassivena Stackelberg, 1934 [ACCEPTED SPECIES 9817:8CBBC nidx=null]
 + Hercostomus (Hercostomus) crassivena Stackelberg, 1933 [ACCEPTED SPECIES 9820:8YT6P nidx=null]
Hercostomus (Hercostomus) daubichensis
 - Hercostomus (Hercostomus) daubichensis Stackelberg, 1934 [ACCEPTED SPECIES 9817:8CBBS nidx=null]
 + Hercostomus (Hercostomus) daubichensis Stackelberg, 1933 [ACCEPTED SPECIES 9820:8YT6R nidx=null]
Hercostomus (Hercostomus) dichromopyga
 - Hercostomus (Hercostomus) dichromopyga Stackelberg, 1934 [ACCEPTED SPECIES 9817:8CBBW nidx=null]
 + Hercostomus (Hercostomus) dichromopyga Stackelberg, 1933 [ACCEPTED SPECIES 9820:8YT6T nidx=null]
Hercostomus (Hercostomus) potanini
 - Hercostomus (Hercostomus) potanini Stackelberg, 1934 [ACCEPTED SPECIES 9817:8CBGX nidx=null]
 + Hercostomus (Hercostomus) potanini Stackelberg, 1933 [ACCEPTED SPECIES 9820:8YT6X nidx=null]
Hercostomus (Hercostomus) pseudoceler
 - Hercostomus (Hercostomus) pseudoceler Stackelberg, 1934 [ACCEPTED SPECIES 9817:8CBH4 nidx=null]
 + Hercostomus (Hercostomus) pseudoceler Stackelberg, 1933 [ACCEPTED SPECIES 9820:8YT72 nidx=null]
Hercostomus (Hercostomus) radialis
 - Hercostomus (Hercostomus) radialis Stackelberg, 1934 [ACCEPTED SPECIES 9817:8CBHB nidx=null]
 + Hercostomus (Hercostomus) radialis Stackelberg, 1933 [ACCEPTED SPECIES 9820:8YT73 nidx=null]
Hercostomus (Hercostomus) rivulorum
 - Hercostomus (Hercostomus) rivulorum Stackelberg, 1934 [ACCEPTED SPECIES 9817:8CBHC nidx=null]
 + Hercostomus (Hercostomus) rivulorum Stackelberg, 1933 [ACCEPTED SPECIES 9820:8YT76 nidx=null]
Hercostomus (Hercostomus) rohdendorfi
 - Hercostomus (Hercostomus) rohdendorfi Stackelberg, 1934 [ACCEPTED SPECIES 9817:8CBHF nidx=null]
 + Hercostomus (Hercostomus) rohdendorfi Stackelberg, 1933 [ACCEPTED SPECIES 9820:8YT77 nidx=null]
Hercostomus (Hercostomus) sinicus
 - Hercostomus (Hercostomus) sinicus Stackelberg, 1934 [ACCEPTED SPECIES 9817:8CBJ4 nidx=null]
 + Hercostomus (Hercostomus) sinicus Stackelberg, 1933 [ACCEPTED SPECIES 9820:8YT79 nidx=null]
Hercostomus (Hercostomus) tadzhikorum
 - Hercostomus (Hercostomus) tadzhikorum Stackelberg, 1934 [ACCEPTED SPECIES 9817:8CBJF nidx=null]
 + Hercostomus (Hercostomus) tadzhikorum Stackelberg, 1933 [ACCEPTED SPECIES 9820:8YT7D nidx=null]
Hercostomus (Hercostomus) udeorum
 - Hercostomus (Hercostomus) udeorum Stackelberg, 1934 [ACCEPTED SPECIES 9817:8CBJS nidx=null]
 + Hercostomus (Hercostomus) udeorum Stackelberg, 1933 [ACCEPTED SPECIES 9820:8YT7F nidx=null]
Hercostomus (Hercostomus) ussurianus
 - Hercostomus (Hercostomus) ussurianus Stackelberg, 1934 [ACCEPTED SPECIES 9817:8CBJW nidx=null]
 + Hercostomus (Hercostomus) ussurianus Stackelberg, 1933 [ACCEPTED SPECIES 9820:8YT7H nidx=null]
Hercostomus (Hercostomus) uzbekorum
 - Hercostomus (Hercostomus) uzbekorum Stackelberg, 1934 [ACCEPTED SPECIES 9817:8CBJX nidx=null]
 + Hercostomus (Hercostomus) uzbekorum Stackelberg, 1933 [ACCEPTED SPECIES 9820:8YT7L nidx=null]
Hercostomus armenorum
 - Hercostomus armenorum Stackelberg, 1934 [SYNONYM SPECIES 9817:88Z77 nidx=null parent=8CB95]
 + Hercostomus armenorum Stackelberg, 1933 [SYNONYM SPECIES 9820:8YT6J nidx=null parent=8YT6K]
Hercostomus caucasicus
 - Hercostomus caucasicus Stackelberg, 1934 [SYNONYM SPECIES 9817:88Z7T nidx=null parent=8CB9S]
 + Hercostomus caucasicus Stackelberg, 1933 [SYNONYM SPECIES 9820:8YT6M nidx=null parent=8YT6L]
Hercostomus crassivena
 - Hercostomus crassivena Stackelberg, 1934 [SYNONYM SPECIES 9817:88Z85 nidx=null parent=8CBBC]
 + Hercostomus crassivena Stackelberg, 1933 [SYNONYM SPECIES 9820:8YT6N nidx=null parent=8YT6P]
Hercostomus daubichensis
 - Hercostomus daubichensis Stackelberg, 1934 [SYNONYM SPECIES 9817:88Z8H nidx=null parent=8CBBS]
 + Hercostomus daubichensis Stackelberg, 1933 [SYNONYM SPECIES 9820:8YT6Q nidx=null parent=8YT6R]
Hercostomus dichromopyga
 - Hercostomus dichromopyga Stackelberg, 1934 [SYNONYM SPECIES 9817:88Z8L nidx=null parent=8CBBW]
 + Hercostomus dichromopyga Stackelberg, 1933 [SYNONYM SPECIES 9820:8YT6S nidx=null parent=8YT6T]
Hercostomus fuscipennis
 - Hercostomus fuscipennis (Meigen, 1824) [ACCEPTED SPECIES 9817:3KY5J nidx=null]
 + Hercostomus fuscipennis Vanschuytbroeck, 1964 [SYNONYM SPECIES 9820:3KY5K nidx=null parent=3KY2X]
Hercostomus parvulus
 - Hercostomus parvulus Parent, 1928 [SYNONYM SPECIES 9817:88ZD9 nidx=null parent=8CBGK]
 + Hercostomus parvulus Parent, 1927 [SYNONYM SPECIES 9820:8YT6W nidx=null parent=8ZT77]
Hercostomus peterbus
 - Hercostomus peterbus Curran, 1924 [ACCEPTED SPECIES 9817:6M44D nidx=null]
 + Hercostomus peterbus Dyte & Smith, 1980 [SYNONYM SPECIES 9820:8YT7N nidx=null parent=8ZQ42]
Hercostomus potanini
 - Hercostomus potanini Stackelberg, 1934 [SYNONYM SPECIES 9817:88ZDM nidx=null parent=8CBGX]
 + Hercostomus potanini Stackelberg, 1933 [SYNONYM SPECIES 9820:8YT6Y nidx=null parent=8YT6X]
Hercostomus pseudoceler
 - Hercostomus pseudoceler Stackelberg, 1934 [SYNONYM SPECIES 9817:88ZDS nidx=null parent=8CBH4]
 + Hercostomus pseudoceler Stackelberg, 1933 [SYNONYM SPECIES 9820:8YT6Z nidx=null parent=8YT72]
Hercostomus radialis
 - Hercostomus radialis Stackelberg, 1934 [SYNONYM SPECIES 9817:88ZDZ nidx=null parent=8CBHB]
 + Hercostomus radialis Stackelberg, 1933 [SYNONYM SPECIES 9820:8YT74 nidx=null parent=8YT73]
Hercostomus rivulorum
 - Hercostomus rivulorum Stackelberg, 1934 [SYNONYM SPECIES 9817:88ZF3 nidx=null parent=8CBHC]
 + Hercostomus rivulorum Stackelberg, 1933 [SYNONYM SPECIES 9820:8YT75 nidx=null parent=8YT76]
Hercostomus rohdendorfi
 - Hercostomus rohdendorfi Stackelberg, 1934 [SYNONYM SPECIES 9817:88ZF4 nidx=null parent=8CBHF]
 + Hercostomus rohdendorfi Stackelberg, 1933 [SYNONYM SPECIES 9820:8YT78 nidx=null parent=8YT77]
Hercostomus setifacies
 - Hercostomus setifacies Stackelberg, 1934 [SYNONYM SPECIES 9817:8CBN3 nidx=null parent=4X2VB]
 + Hercostomus setifacies Stackelberg, 1933 [SYNONYM SPECIES 9820:8YT7P nidx=null parent=8YW45]
Hercostomus sinicus
 - Hercostomus sinicus Stackelberg, 1934 [SYNONYM SPECIES 9817:88ZFV nidx=null parent=8CBJ4]
 + Hercostomus sinicus Stackelberg, 1933 [SYNONYM SPECIES 9820:8YT7B nidx=null parent=8YT79]
Hercostomus tadzhikorum
 - Hercostomus tadzhikorum Stackelberg, 1934 [SYNONYM SPECIES 9817:88ZG9 nidx=null parent=8CBJF]
 + Hercostomus tadzhikorum Stackelberg, 1933 [SYNONYM SPECIES 9820:8YT7C nidx=null parent=8YT7D]
Hercostomus udeorum
 - Hercostomus udeorum Stackelberg, 1934 [SYNONYM SPECIES 9817:88ZGS nidx=null parent=8CBJS]
 + Hercostomus udeorum Stackelberg, 1933 [SYNONYM SPECIES 9820:8YT7G nidx=null parent=8YT7F]
Hercostomus ussurianus
 - Hercostomus ussurianus Stackelberg, 1934 [SYNONYM SPECIES 9817:88ZGW nidx=null parent=8CBJW]
 + Hercostomus ussurianus Stackelberg, 1933 [SYNONYM SPECIES 9820:8YT7J nidx=null parent=8YT7H]
Hercostomus uzbekorum
 - Hercostomus uzbekorum Stackelberg, 1934 [SYNONYM SPECIES 9817:88ZGX nidx=null parent=8CBJX]
 + Hercostomus uzbekorum Stackelberg, 1933 [SYNONYM SPECIES 9820:8YT7K nidx=null parent=8YT7L]
Hermetia flavipes
 - Hermetia flavipes Lindner, 1949 [PROVISIONALLY_ACCEPTED SPECIES 9817:88C6Z nidx=null]
 + Hermetia flavipes Lindner, 1933 [AMBIGUOUS_SYNONYM SPECIES 9820:6LS7H nidx=null parent=3KZZR]
Hervebazinia longipes
 - Hervebazinia longipes Séguy, 1923 [SYNONYM SPECIES 9817:88ZJJ nidx=null parent=8C4SL]
 + Hervebazinia longipes Séguy, 1923 [SYNONYM SPECIES 9820:6M3M5 nidx=null parent=6HKGW]
Heteralonia phaeoptera
 - Heteralonia phaeoptera (Wiedemann, 1820) [ACCEPTED SPECIES 9817:3L78T nidx=null]
 + Heteralonia phaeoptera (Meigen, 1820) [ACCEPTED SPECIES 9820:8YT7V nidx=null]
Heteromurus
 - Heteromurus Hopkin, SP, 1997 [SYNONYM GENUS 9817:4WK3 nidx=null parent=4WRX]
 - Heteromurus Wankel, 1860 nc Opinion, 1064, 1976 [ACCEPTED GENUS 9817:4WK4 nidx=null]
 + Heteromurus Wankel, 1860 [ACCEPTED GENUS 9820:8YRK8 nidx=null]
Heteromurus nitidus brevicornis
 - Heteromurus nitidus brevicornis Bonet, 1934 [SYNONYM SUBSPECIES 9817:5HP4F nidx=null parent=6M59L]
 + Heteromurus nitidus brevicornis Bonet, F, 1933 [SYNONYM SUBSPECIES 9820:8Z7TG nidx=null parent=8YY89]
 + Heteromurus nitidus brevicornis Mari Mutt, JA & Bellinger, PF, 1990 [SYNONYM SUBSPECIES 9820:8Z7TH nidx=null parent=8YY89]
Heteromydas bicolor
 - Heteromydas bicolor Hardy, 1944 [ACCEPTED SPECIES 9817:6M59D nidx=null]
 + Heteromydas bicolor Hardy, 1945 [ACCEPTED SPECIES 9820:8YT7W nidx=null]
Heteronucia margaritata
 - Heteronucia margaritata H.-L. Chen & P.K.L. Ng, 2003 [ACCEPTED SPECIES 9817:6M4P4 nidx=null]
 + Heteronucia margaritata HL Chen & PKL Ng, 2003 [ACCEPTED SPECIES 9820:8YXGW nidx=null]
Heteronychus (Heteronychus) lioderes
 - Heteronychus (Heteronychus) lioderes Redtenbacher, 1867 [ACCEPTED SPECIES 9817:7ZNKL nidx=null]
 + Heteronychus (Heteronychus) lioderes Redtenbacher, 1868 [ACCEPTED SPECIES 9820:8YX4T nidx=null]
Heteropterna abdominalis
 - Heteropterna abdominalis Lane, 1948 [SYNONYM SPECIES 9817:88ZPC nidx=null parent=8CC2K]
 + Heteropterna abdominalis (Lane, 1948) [ACCEPTED SPECIES 9820:3LCSZ nidx=null]
Heteropterna tetraleuca
 - Heteropterna tetraleuca Edwards, 1940 [SYNONYM SPECIES 9817:88ZPQ nidx=null parent=8CC2L]
 + Heteropterna tetraleuca (Edwards, 1940) [ACCEPTED SPECIES 9820:3LCTL nidx=null]
Heteropterna trileuca
 - Heteropterna trileuca Edwards, 1940 [SYNONYM SPECIES 9817:88ZPS nidx=null parent=8CC2M]
 + Heteropterna trileuca (Edwards, 1940) [ACCEPTED SPECIES 9820:3LCTP nidx=null]
Heterospio mediterranea
 - Heterospio mediterranea Laubier, Picard & Ramos, 1973 [ACCEPTED SPECIES 9817:6M64J nidx=null]
 + Heterospio mediterranea Laubier, Picard & Ramos, 1974 [ACCEPTED SPECIES 9820:8YWVW nidx=null]
Heterospio reducta
 - Heterospio reducta Laubier, Picard & Ramos, 1973 [ACCEPTED SPECIES 9817:6M5SK nidx=null]
 + Heterospio reducta Laubier, Picard & Ramos, 1974 [ACCEPTED SPECIES 9820:8YWVX nidx=null]
Heterostylodes pratensis
 - Heterostylodes pratensis (Meigen, 1826) [ACCEPTED SPECIES 9817:6M5Y7 nidx=null]
 + Heterostylodes pratensis Macquart, 1835 [ACCEPTED SPECIES 9820:8YT7Y nidx=null]
Hibiscus diversifolius witteanus
 - Hibiscus diversifolius witteanus Hochr. [SYNONYM INFRASPECIFIC_NAME 9817:7H94K nidx=null parent=3LJHK]
 + Hibiscus diversifolius witteanus Hochr. [SYNONYM INFRASPECIFIC_NAME 9820:8Z2X9 nidx=null parent=3LJHK]
Hilara fuscipes
 - Hilara fuscipes (Fabricius, 1794) [ACCEPTED SPECIES 9817:3LW7T nidx=null]
 + Hilara fuscipes Becker, 1887 [SYNONYM SPECIES 9820:3LW7S nidx=null parent=3LWDX]
Hilara heterogastra
 - Hilara heterogastra Nowicki, 1868 [ACCEPTED SPECIES 9817:3LW8K nidx=null]
 + Hilara heterogastra Loew, 1858 [SYNONYM SPECIES 9820:8YT84 nidx=null parent=3LWKW]
Hilara nana
 - Hilara nana Oldenberg, 1924 [ACCEPTED SPECIES 9817:3LWCG nidx=null]
 + Hilara nana Macquart, 1828 [SYNONYM SPECIES 9820:8YT85 nidx=null parent=3LW4X]
Holcocephala (Holcocephala) uruguayensis
 - Holcocephala (Holcocephala) uruguayensis Lynch Arribálzaga, 1882 [ACCEPTED SPECIES 9817:8CCGK nidx=null]
 + Holcocephala (Holcocephala) uruguayensis Lynch Arribálzaga, 1883 [ACCEPTED SPECIES 9820:8YT87 nidx=null]
Holcocephala uruguayensis
 - Holcocephala uruguayensis Lynch Arribálzaga, 1882 [SYNONYM SPECIES 9817:8924G nidx=null parent=8CCGK]
 + Holcocephala uruguayensis Lynch Arribálzaga, 1883 [SYNONYM SPECIES 9820:8YT88 nidx=null parent=8YT87]
Holotrichia coromandeliana
 - Holotrichia coromandeliana Blanchard, 1851 [SYNONYM SPECIES 9817:7WMYV nidx=null parent=7ZPVS]
 + Holotrichia coromandeliana Blanchard, 1850 [SYNONYM SPECIES 9820:8YX58 nidx=null parent=8YX69]
Holotrichia reynaudi
 - Holotrichia reynaudi Blanchard, 1851 [ACCEPTED SPECIES 9817:6LYLQ nidx=null]
 + Holotrichia reynaudi Blanchard, 1850 [ACCEPTED SPECIES 9820:8YX59 nidx=null]
Holotrichia sculpticollis
 - Holotrichia sculpticollis (Blanchard, 1851) [ACCEPTED SPECIES 9817:3MBFB nidx=null]
 + Holotrichia sculpticollis (Blanchard, 1850) [ACCEPTED SPECIES 9820:8YX5B nidx=null]
Homalochilus
 - Homalochilus Blanchard, 1851 [ACCEPTED GENUS 9817:4Y6V nidx=null]
 + Homalochilus Blanchard, 1850 [ACCEPTED GENUS 9820:8YRKM nidx=null]
Homidia dianbaiensis
 - Homidia dianbaiensis (Lin, 1985) [ACCEPTED SPECIES 9817:3MFD9 nidx=null]
 + Homidia dianbaiensis (Lln, S-X, 1985) [ACCEPTED SPECIES 9820:8Z6FV nidx=null]
Hoplophorella
 - Hoplophorella Berlese, 1923 [ACCEPTED SUBGENUS 9817:8VYC6 nidx=null]
 + Hoplophorella Berlese, 1923 [ACCEPTED SUBGENUS 9820:7P69Y nidx=null]
Hoplosternus
 - Hoplosternus Blanchard, 1851 [SYNONYM GENUS 9817:4YQ6 nidx=null parent=5NVB]
 + Hoplosternus Blanchard, 1850 [SYNONYM GENUS 9820:8YX2M nidx=null parent=5NVB]
Hoplosternus laevipennis
 - Hoplosternus laevipennis Blanchard, 1851 [SYNONYM SPECIES 9817:3MN6L nidx=null parent=7CG9V]
 + Hoplosternus laevipennis Blanchard, 1850 [SYNONYM SPECIES 9820:8YX5F nidx=null parent=8YX9C]
Hybos
 - Hybos [ACCEPTED SUBGENUS 9817:8V4D2 nidx=null]
 - Hybos [ACCEPTED SUBGENUS 9817:8VTDH nidx=null]
 + Hybos [PROVISIONALLY_ACCEPTED GENUS 9820:8YQG8 nidx=null]
Hybos fumipennis
 - Hybos fumipennis Meigen, 1820 [SYNONYM SPECIES 9817:3MYLW nidx=null parent=3MYLR]
 + Hybos fumipennis Wiedemann, 1820 [SYNONYM SPECIES 9820:8YT8K nidx=null parent=3MYLR]
Hybos integer
 - Hybos integer Walker, 1852 [SYNONYM SPECIES 9817:892YM nidx=null parent=8C44T]
 + Hybos integer Walker, 1852 [SYNONYM SPECIES 9820:3MYMC nidx=null parent=3C8XL]
Hydrellia nigra
 - Hydrellia nigra Canzoneri, 1982 [ACCEPTED SPECIES 9817:6MJ2D nidx=null]
 + Hydrellia nigra Miyagi, 1977 [SYNONYM SPECIES 9820:6MJ2C nidx=null parent=3N4WV]
Hydrophorus wahlgreni
 - Hydrophorus wahlgreni Frey, 1915 [ACCEPTED SPECIES 9817:88D8Z nidx=null]
 + Hydrophorus wahlgreni Frey, 1915 [SYNONYM SPECIES 9820:3N8KR nidx=null parent=3N8F8]
Hylemya hyemalis
 - Hylemya hyemalis Robineau-Desvoidy, 1830 [SYNONYM SPECIES 9817:8934D nidx=null parent=6MMM5]
 + Hylemya hyemalis Robineau-Desvoidy, 1830 [SYNONYM SPECIES 9820:6MMK8 nidx=null parent=6MMM5]
Hylemya luteipes
 - Hylemya luteipes Robineau-Desvoidy, 1830 [SYNONYM SPECIES 9817:8934F nidx=null parent=6MMM5]
 + Hylemya luteipes Robineau-Desvoidy, 1830 [SYNONYM SPECIES 9820:6MMLR nidx=null parent=6MMM5]
Hylemya salicola
 - Hylemya salicola Huckett, 1928 [SYNONYM SPECIES 9817:88DDJ nidx=null parent=8BYR4]
 + Hylemya salicola Huckett, 1928 [SYNONYM SPECIES 9820:6MMLL nidx=null parent=6DYXV]
Hylemya spinilamellata
 - Hylemya spinilamellata Stein, 1904 [SYNONYM SPECIES 9817:8934G nidx=null parent=8B8MK]
 + Hylemya spinilamellata Stein, 1904 [SYNONYM SPECIES 9820:6MMLF nidx=null parent=MMX8]
Hylemyia abrepta
 - Hylemyia abrepta Giglio-Tos, 1893 [SYNONYM SPECIES 9817:88DF7 nidx=null parent=8C4RP]
 + Hylemyia abrepta Giglio-Tos, 1893 [SYNONYM SPECIES 9820:6MMKW nidx=null parent=6HKG7]
Hylemyia anthracina
 - Hylemyia anthracina Malloch, 1918 [SYNONYM SPECIES 9817:88DFH nidx=null parent=8BRJH]
 + Hylemyia anthracina Malloch, 1918 [SYNONYM SPECIES 9820:6MMN4 nidx=null parent=34G3K]
Hylemyia anthracodes
 - Hylemyia anthracodes Malloch, 1920 [SYNONYM SPECIES 9817:88DFJ nidx=null parent=8BRJH]
 + Hylemyia anthracodes Malloch, 1920 [SYNONYM SPECIES 9820:6MMMV nidx=null parent=34G3K]
Hylemyia conicans
 - Hylemyia conicans Huckett, 1948 [SYNONYM SPECIES 9817:88DG5 nidx=null parent=8DBPD]
 + Hylemyia conicans Huckett, 1948 [SYNONYM SPECIES 9820:6MMMK nidx=null parent=4GRBG]
Hylemyia fuscohalterata
 - Hylemyia fuscohalterata Malloch, 1920 [SYNONYM SPECIES 9817:88DGP nidx=null parent=8BYR8]
 + Hylemyia fuscohalterata Malloch, 1920 [SYNONYM SPECIES 9820:6MMLX nidx=null parent=6DYY3]
Hylemyia intensa
 - Hylemyia intensa Malloch, 1924 [SYNONYM SPECIES 9817:8934H nidx=null parent=89ZNR]
 + Hylemyia intensa Malloch, 1924 [SYNONYM SPECIES 9820:6MMNK nidx=null parent=5VDLM]
Hylemyia mouillei
 - Hylemyia mouillei Séguy, 1944 [SYNONYM SPECIES 9817:8934J nidx=null parent=8D6FV]
 + Hylemyia mouillei Séguy, 1944 [SYNONYM SPECIES 9820:6MMMZ nidx=null parent=6TN8G]
Hylemyia nigribasis
 - Hylemyia nigribasis Stein, 1920 [SYNONYM SPECIES 9817:8934K nidx=null parent=8B8MF]
 + Hylemyia nigribasis Stein, 1920 [SYNONYM SPECIES 9820:6MMMY nidx=null parent=68P4S]
Hylemyia pedestris
 - Hylemyia pedestris Malloch, 1919 [SYNONYM SPECIES 9817:88DHT nidx=null parent=8D85L]
 + Hylemyia pedestris Malloch, 1919 [SYNONYM SPECIES 9820:6MMP4 nidx=null parent=769ZV]
Hylemyia pentaformis
 - Hylemyia pentaformis Huckett, 1929 [SYNONYM SPECIES 9817:88DHV nidx=null parent=8BRJS]
 + Hylemyia pentaformis Huckett, 1929 [SYNONYM SPECIES 9820:6MMNX nidx=null parent=34G4R]
Hylemyia setifer
 - Hylemyia setifer Malloch, 1920 [SYNONYM SPECIES 9817:88DJJ nidx=null parent=8BRJS]
 + Hylemyia setifer Malloch, 1920 [SYNONYM SPECIES 9820:6MN23 nidx=null parent=34G4R]
Hylemyia spinilamellata
 - Hylemyia spinilamellata Malloch, 1918 [SYNONYM SPECIES 9817:8934M nidx=null parent=8B8MJ]
 + Hylemyia spinilamellata Malloch, 1918 [SYNONYM SPECIES 9820:6MMPT nidx=null parent=8YRKQ]
Hylemyia tantalisa
 - Hylemyia tantalisa Huckett, 1928 [SYNONYM SPECIES 9817:88DJX nidx=null parent=8BYR8]
 + Hylemyia tantalisa Huckett, 1928 [SYNONYM SPECIES 9820:6MMPQ nidx=null parent=6DYY3]
Hylemyia villica
 - Hylemyia villica Meigen, 1838 [SYNONYM SPECIES 9817:88DK3 nidx=null parent=8BYX9]
 + Hylemyia villica Meigen, 1838 [SYNONYM SPECIES 9820:6MMPC nidx=null parent=39H8R]
Hylemyia vittithorax
 - Hylemyia vittithorax Stein, 1914 [SYNONYM SPECIES 9817:8934N nidx=null parent=8B8PY]
 + Hylemyia vittithorax Stein, 1914 [SYNONYM SPECIES 9820:6MMPD nidx=null parent=MMYG]
Hypogastrura (Hypogastrura) sensilis
 - Hypogastrura (Hypogastrura) sensilis (Folsom, JW, 1919: 5A) [ACCEPTED SPECIES 9817:6N3C3 nidx=null]
 + Hypogastrura (Hypogastrura) sensilis (Folsom, JW, 1919) [ACCEPTED SPECIES 9820:8YYDR nidx=null]
Hypogastrura (Hypogastrura) sonapani
 - Hypogastrura (Hypogastrura) sonapani (Baijal, HN, 1958: 349, i.s.) [ACCEPTED SPECIES 9817:3NVYZ nidx=null]
 + Hypogastrura (Hypogastrura) sonapani Baijal, HN, 1958 [ACCEPTED SPECIES 9820:8YYDZ nidx=null]
Hypogastrura (Hypogastrura) trilobata
 - Hypogastrura (Hypogastrura) trilobata Linnaniemi, 1912 [ACCEPTED SPECIES 9817:3NVZJ nidx=null]
 + Hypogastrura (Hypogastrura) trilobata [ACCEPTED SPECIES 9820:8ZNRK nidx=null]
Hypogastrura aequipilosa
 - Hypogastrura aequipilosa Gisin, H, 1960 [AMBIGUOUS_SYNONYM SPECIES 9817:3NW24 nidx=null parent=3NVZM]
 + Hypogastrura aequipilosa Weiner, WM, 1981 [SYNONYM SPECIES 9820:8YYC7 nidx=null parent=6MRBT]
Hypogastrura armata
 - Hypogastrura armata Poole, 1959 [AMBIGUOUS_SYNONYM SPECIES 9817:6N3C2 nidx=null parent=SNYY]
 + Hypogastrura armata Scott, 1961 [SYNONYM SPECIES 9820:8YYCB nidx=null parent=SNZR]
 + Hypogastrura armata Salmon, JT, 1964 [SYNONYM SPECIES 9820:8YYCF nidx=null parent=SNZR]
Hypogastrura crassaegranulata
 - Hypogastrura crassaegranulata Babenko, AB, Chernova, NM, Potapov, MB & Stebaeva, SK, 1994 [AMBIGUOUS_SYNONYM SPECIES 9817:3NW2S nidx=null parent=3NVZ6]
 + Hypogastrura crassaegranulata Weiner, 1981 [SYNONYM SPECIES 9820:8YYCX nidx=null parent=3NVZ7]
 + Hypogastrura crassaegranulata Skarzynski, 2003 [SYNONYM SPECIES 9820:8YYCY nidx=null parent=3NVW8]
 + Hypogastrura crassaegranulata Szeptycki, 1967 [SYNONYM SPECIES 9820:8YYCZ nidx=null parent=3NVZ7]
Hypogastrura manubrialis
 - Hypogastrura manubrialis Maynard, 1951 [SYNONYM SPECIES 9817:3NW3J nidx=null parent=3NVV3]
 + Hypogastrura manubrialis Womersley, 1939 [SYNONYM SPECIES 9820:8YYDD nidx=null parent=3NVV3]
Hypogastrura nivicola
 - Hypogastrura nivicola Christiansen, K & Bellinger, P, 1980 [SYNONYM SPECIES 9817:3NW3W nidx=null parent=3NVZB]
 + Hypogastrura nivicola Yosii, 1960 [SYNONYM SPECIES 9820:8YYDG nidx=null parent=3NVZB]
Hypogastrura purpurascens
 - Hypogastrura purpurascens Womersley, 1928 [AMBIGUOUS_SYNONYM SPECIES 9817:3NW4J nidx=null parent=3NVZM]
 + Hypogastrura purpurascens Busvine, JR, 1966 [SYNONYM SPECIES 9820:8Z6GG nidx=null parent=3NVYK]
 + Hypogastrura purpurascens Szeptycki & Weiner in Razowski, 1990 [SYNONYM SPECIES 9820:8Z6GH nidx=null parent=3NVYK]
 + Hypogastrura purpurascens Latzel, R, 1917 [SYNONYM SPECIES 9820:8Z6GJ nidx=null parent=3NVYK]
 + Hypogastrura purpurascens Handschin, 1929 [SYNONYM SPECIES 9820:8Z6GK nidx=null parent=3NVYK]
 + Hypogastrura purpurascens Berg, M & Aptroot, A, 2003 [SYNONYM SPECIES 9820:8Z6GL nidx=null parent=3NVYK]
 + Hypogastrura purpurascens Obenberger, 1955 [SYNONYM SPECIES 9820:8Z6GM nidx=null parent=3NVYK]
 + Hypogastrura purpurascens Cassagnau, P in Vandel, A, 1955 [SYNONYM SPECIES 9820:8Z6GN nidx=null parent=3NVYK]
 + Hypogastrura purpurascens Bonet, F, 1930 [SYNONYM SPECIES 9820:8Z6GP nidx=null parent=3NVYK]
 + Hypogastrura purpurascens Linnaniemi, WM, 1912 [SYNONYM SPECIES 9820:8Z6GQ nidx=null parent=3NVYK]
 + Hypogastrura purpurascens Hubart, J-M, 1982 [SYNONYM SPECIES 9820:8Z6GR nidx=null parent=3NVYK]
 + Hypogastrura purpurascens Delhez, F & Houssa, M, 1969 [SYNONYM SPECIES 9820:8Z6GS nidx=null parent=3NVYK]
 + Hypogastrura purpurascens Linnaniemi, 1911 [SYNONYM SPECIES 9820:8Z6GT nidx=null parent=3NVYK]
 + Hypogastrura purpurascens Marlier, GJ, 1942 [SYNONYM SPECIES 9820:8Z6GV nidx=null parent=3NVYK]
 + Hypogastrura purpurascens Busvine, J, 1951 [SYNONYM SPECIES 9820:8Z6GW nidx=null parent=3NVYK]
 + Hypogastrura purpurascens Kühnelt, W, 1961 [SYNONYM SPECIES 9820:8Z6GX nidx=null parent=3NVYK]
 + Hypogastrura purpurascens Poole in Poole & Gentili, 1997 [SYNONYM SPECIES 9820:8Z6GY nidx=null parent=3NVYK]
 + Hypogastrura purpurascens Handschin, 1924 [SYNONYM SPECIES 9820:8Z6GZ nidx=null parent=3NVYK]
Hypogastrura socialis
 - Hypogastrura socialis Babenko, AB, Chernova, NM, Potapov, MB & Stebaeva, SK, 1994 [SYNONYM SPECIES 9817:3NW4T nidx=null parent=3NVZB]
 + Hypogastrura socialis Arbea, JI, 2007 [SYNONYM SPECIES 9820:8YYDY nidx=null parent=3NVWY]
Ibanum aethes
 - Ibanum aethes P.K.L. Ng, 1995 [ACCEPTED SPECIES 9817:3P76J nidx=null]
 + Ibanum aethes PKL Ng, 1995 [ACCEPTED SPECIES 9820:8YXKL nidx=null]
Iglica (Iglica) tellinii
 - Iglica (Iglica) tellinii (Pollonera, 1887) [SYNONYM SPECIES 9817:7RQHY nidx=null parent=7RQJY]
 + Iglica (Iglica) tellinii (Pollonera, 1886) [SYNONYM SPECIES 9820:8YXKP nidx=null parent=8YXKQ]
Iglica tellinii
 - Iglica tellinii (Pollonera, 1887) [ACCEPTED SPECIES 9817:7RQJY nidx=null]
 + Iglica tellinii (Pollonera, 1886) [ACCEPTED SPECIES 9820:8YXKQ nidx=null]
Ilyactis
 - Ilyactis [ACCEPTED GENUS 9817:53WW nidx=null]
 + Ilyactis Andres, 1881 [ACCEPTED GENUS 9820:8YS5B nidx=null]
Indoaxarus santokhi
 - Indoaxarus santokhi Maheshwari & Maheshwari, 2001 [ACCEPTED SPECIES 9817:3PMXK nidx=null]
 + Indoaxarus santokhi Maheshwari & Maheshwari, 2002 [ACCEPTED SPECIES 9820:8YT9R nidx=null]
Isolapotamon bauense
 - Isolapotamon bauense P.K.L. Ng, 1987 [ACCEPTED SPECIES 9817:3Q9BL nidx=null]
 + Isolapotamon bauense PKL Ng, 1987 [ACCEPTED SPECIES 9820:8YXKT nidx=null]
Isolapotamon beeliae
 - Isolapotamon beeliae P.K.L. Ng, 1986 [ACCEPTED SPECIES 9817:3Q9BM nidx=null]
 + Isolapotamon beeliae PKL Ng, 1986 [ACCEPTED SPECIES 9820:8YXKV nidx=null]
Isolapotamon naiadis
 - Isolapotamon naiadis P.K.L. Ng, 1986 [ACCEPTED SPECIES 9817:3Q9C2 nidx=null]
 + Isolapotamon naiadis PKL Ng, 1986 [ACCEPTED SPECIES 9820:8YXKW nidx=null]
Isolapotamon nimboni
 - Isolapotamon nimboni P.K.L. Ng, 1987 [ACCEPTED SPECIES 9817:3Q9C4 nidx=null]
 + Isolapotamon nimboni PKL Ng, 1987 [ACCEPTED SPECIES 9820:8YPXZ nidx=null]
Isolapotamon stuebingi
 - Isolapotamon stuebingi P.K.L. Ng, 1995 [SYNONYM SPECIES 9817:3Q9CC nidx=null parent=3Q9C4]
 + Isolapotamon stuebingi PKL Ng, 1995 [SYNONYM SPECIES 9820:8YPY2 nidx=null parent=8YPXZ]
Isomya
 - Isomya E. Cutler & Cutler, 1985 [ACCEPTED SUBGENUS 9817:8W5DT nidx=null]
 + Isomya E. Cutler & Cutler, 1985 [ACCEPTED SUBGENUS 9820:7Q7LV nidx=null]
Isotoma brucei
 - Isotoma brucei Wray, 1953 [SYNONYM SPECIES 9817:3QCCT nidx=null parent=43P23]
 + Isotoma brucei Carpenter, GH, 1907 [SYNONYM SPECIES 9820:8Z6HG nidx=null parent=G9NL]
Isotoma decorata
 - Isotoma decorata Janetschek, 1990 [AMBIGUOUS_SYNONYM SPECIES 9817:3QCDJ nidx=null parent=3QCJJ]
 + Isotoma decorata Martynova, 1968 [AMBIGUOUS_SYNONYM SPECIES 9820:8Z6HM nidx=null parent=3QCJJ]
 + Isotoma decorata Martynova & Chikatunov, 1968 [AMBIGUOUS_SYNONYM SPECIES 9820:8Z6HN nidx=null parent=3QCJJ]
 + Isotoma decorata Vtorov & Martynova, 1974 [AMBIGUOUS_SYNONYM SPECIES 9820:8Z6HQ nidx=null parent=3QCJJ]
 + Isotoma decorata Martynova & Vtorov, 1973 [AMBIGUOUS_SYNONYM SPECIES 9820:8Z6HR nidx=null parent=3QCJJ]
 + Isotoma decorata Yosii, 1971 [AMBIGUOUS_SYNONYM SPECIES 9820:8Z6HT nidx=null parent=3QCJJ]
 + Isotoma decorata Vtorov & Martynova, 1975 [AMBIGUOUS_SYNONYM SPECIES 9820:8Z6HV nidx=null parent=3QCJJ]
Isotoma hibernica
 - Isotoma hibernica Carpenter, 1906 [AMBIGUOUS_SYNONYM SPECIES 9817:6MZHR nidx=null parent=3QCL6]
 + Isotoma hibernica Gisin, H, 1960 [AMBIGUOUS_SYNONYM SPECIES 9820:8Z6HY nidx=null parent=3QCL6]
Isotoma litoralis
 - Isotoma litoralis Schött, H, 1893 [AMBIGUOUS_SYNONYM SPECIES 9817:3QCFQ nidx=null parent=KHJ8]
 + Isotoma litoralis Reuter, OM, 1901 [SYNONYM SPECIES 9820:8Z5C6 nidx=null parent=KHJ8]
Isotoma manubriata
 - Isotoma manubriata Macnamara [AMBIGUOUS_SYNONYM SPECIES 9817:3QCG5 nidx=null parent=6JBBB]
 - Isotoma manubriata Mac Gillivray, 1896 [ACCEPTED SPECIES 9817:3QCG6 nidx=null]
 + Isotoma manubriata Macgillivray, 1896 [SYNONYM SPECIES 9820:8Z6J2 nidx=null parent=6JBBB]
 + Isotoma manubriata Christiansen, K & Bellinger, P, 1998 [SYNONYM SPECIES 9820:8Z6J3 nidx=null parent=6JBBB]
 + Isotoma manubriata Christiansen, K & Bellinger, P, 1980 [SYNONYM SPECIES 9820:8Z6J4 nidx=null parent=6JBBB]
 + Isotoma manubriata Christiansen, KA & Tucker, BE, 1977 [SYNONYM SPECIES 9820:8Z6J5 nidx=null parent=6JBBB]
Isotoma palustris
 - Isotoma palustris forma principalis Schött, H, 1893 [AMBIGUOUS_SYNONYM SPECIES 9817:3QCH8 nidx=null parent=3QCSQ]
 + Isotoma palustris Guthrie, JE, 1903 [SYNONYM SPECIES 9820:8Z6J7 nidx=null parent=3QCTD]
 + Isotoma palustris Börner, 1907 [SYNONYM SPECIES 9820:8Z6J8 nidx=null parent=4MRKC]
 + Isotoma palustris Folsom, JW, 1901 [SYNONYM SPECIES 9820:8Z6J9 nidx=null parent=3QCTD]
Isotoma spinicauda
 - Isotoma spinicauda Bonet, 1930 [AMBIGUOUS_SYNONYM SPECIES 9817:3QCJK nidx=null parent=3QCL6]
 + Isotoma spinicauda Gisin, H, 1960 [AMBIGUOUS_SYNONYM SPECIES 9820:8Z6JJ nidx=null parent=3QCL6]
Isotoma tigrina
 - Isotoma tigrina Schött, 1899 [SYNONYM SPECIES 9817:3QCK7 nidx=null parent=3QCK8]
 + Isotoma tigrina Denis, 1937 [AMBIGUOUS_SYNONYM SPECIES 9820:8YYL2 nidx=null parent=354GK]
 + Isotoma tigrina Linnaniemi, 1912 [AMBIGUOUS_SYNONYM SPECIES 9820:8YYL3 nidx=null parent=354GK]
Isotoma viridis var. pomona
 - Isotoma viridis var. pomona Folsom, JW, 1937 [SYNONYM VARIETY 9817:7LV7L nidx=null parent=3QCL6]
 + Isotoma viridis var. pomona Christiansen, K & Bellinger, P, 1998 [SYNONYM VARIETY 9820:8Z843 nidx=null parent=3QCL6]
 + Isotoma viridis var. pomona Poole, RW in Poole, RW & Gentili, P, 1997 [SYNONYM VARIETY 9820:8Z844 nidx=null parent=3QCL6]
 + Isotoma viridis var. pomona Christiansen, K & Bellinger, P, 1980 [SYNONYM VARIETY 9820:8Z845 nidx=null parent=3QCL6]
Isotomiella aluluminor
 - Isotomiella aluluminor Deharveng & Suhardjono, 1995 [ACCEPTED SPECIES 9817:3QCLF nidx=null]
 + Isotomiella aluluminor Yoshii, 1995 [ACCEPTED SPECIES 9820:8Z6KD nidx=null]
Isotomurus palustris var. maculata
 - Isotomurus palustris var. maculata Pfliegler, WP & Janssens, F, 2016 [SYNONYM VARIETY 9817:7M77K nidx=null parent=3QCRX]
 + Isotomurus palustris var. maculata Stach, J, 1924 [SYNONYM VARIETY 9820:8Z5ZK nidx=null parent=3QCRX]
 + Isotomurus palustris var. maculata Gisin, H, 1960 [SYNONYM VARIETY 9820:8Z5ZN nidx=null parent=3QCRX]
Johora aipooae
 - Johora aipooae (P.K.L. Ng, 1986) [ACCEPTED SPECIES 9817:6NFVC nidx=null]
 + Johora aipooae (PKL Ng, 1986) [ACCEPTED SPECIES 9820:8YXLF nidx=null]
Johora counsilmani
 - Johora counsilmani (P.K.L. Ng, 1985) [ACCEPTED SPECIES 9817:6NG7C nidx=null]
 + Johora counsilmani (PKL Ng, 1985) [ACCEPTED SPECIES 9820:8YXLG nidx=null]
Johora grallator
 - Johora grallator P.K.L. Ng, 1988 [ACCEPTED SPECIES 9817:6NG7B nidx=null]
 + Johora grallator PKL Ng, 1988 [ACCEPTED SPECIES 9820:8YXLH nidx=null]
Johora intermedia
 - Johora intermedia P.K.L. Ng, 1986 [ACCEPTED SPECIES 9817:3QQB2 nidx=null]
 + Johora intermedia PKL Ng, 1986 [ACCEPTED SPECIES 9820:8YXLJ nidx=null]
Johora johorensis intermedia
 - Johora johorensis intermedia P.K.L. Ng, 1986 [SYNONYM SUBSPECIES 9817:84GG3 nidx=null parent=3QQB2]
 + Johora johorensis intermedia PKL Ng, 1986 [SYNONYM SUBSPECIES 9820:8YZNR nidx=null parent=8YXLJ]
Johora johorensis murphyi
 - Johora johorensis murphyi P.K.L. Ng, 1986 [SYNONYM SUBSPECIES 9817:84GG4 nidx=null parent=3QQB4]
 + Johora johorensis murphyi PKL Ng, 1986 [SYNONYM SUBSPECIES 9820:8YZNS nidx=null parent=8YXLK]
Johora murphyi
 - Johora murphyi P.K.L. Ng, 1986 [ACCEPTED SPECIES 9817:3QQB4 nidx=null]
 + Johora murphyi PKL Ng, 1986 [ACCEPTED SPECIES 9820:8YXLK nidx=null]
Johora punicea
 - Johora punicea (P.K.L. Ng, 1985) [ACCEPTED SPECIES 9817:3QQB5 nidx=null]
 + Johora punicea (PKL Ng, 1985) [ACCEPTED SPECIES 9820:8YXLL nidx=null]
Johora singaporensis
 - Johora singaporensis P.K.L. Ng, 1986 [ACCEPTED SPECIES 9817:3QQB6 nidx=null]
 + Johora singaporensis PKL Ng, 1986 [ACCEPTED SPECIES 9820:8YXLM nidx=null]
Johora thoi
 - Johora thoi P.K.L. Ng, 1990 [ACCEPTED SPECIES 9817:3QQB9 nidx=null]
 + Johora thoi PKL Ng, 1990 [ACCEPTED SPECIES 9820:8YXLN nidx=null]
Jurinia adusta
 - Jurinia adusta Wulp, 1890 [SYNONYM SPECIES 9817:88H6L nidx=null parent=3QVK6]
 + Jurinia adusta Wulp, 1888 [SYNONYM SPECIES 9820:8YTB6 nidx=null parent=8YTB8]
Juriniopsis adusta
 - Juriniopsis adusta (Wulp, 1890) [ACCEPTED SPECIES 9817:3QVK6 nidx=null]
 + Juriniopsis adusta (Wulp, 1888) [ACCEPTED SPECIES 9820:8YTB8 nidx=null]
Kioconus sugimotonis
 - Kioconus sugimotonis (Kuroda, 1928) [SYNONYM SPECIES 9817:3R89Z nidx=null parent=5ZY5X]
 + Kioconus sugimotonis (Kuroda, 1929) [SYNONYM SPECIES 9820:8YXMF nidx=null parent=5ZY5X]
Krenopelopia amaminova
 - Krenopelopia amaminova Sasa, 1991 [ACCEPTED SPECIES 9817:6NNYR nidx=null]
 + Krenopelopia amaminova Sasa, 1990 [SYNONYM SPECIES 9820:8YTBF nidx=null parent=4D339]
Lactistomyia sequens
 - Lactistomyia sequens Melander, 1902 [SYNONYM SPECIES 9817:8952D nidx=null parent=8CG65]
 + Lactistomyia sequens Melander, 1902 [SYNONYM SPECIES 9820:3RSPG nidx=null parent=3RSP5]
Laevityphis muticus
 - Laevityphis muticus (J. de C. Sowerby, 1834) [ACCEPTED SPECIES 9817:3RVKP nidx=null]
 + Laevityphis muticus (J. de C. Sowerby, 1835) [ACCEPTED SPECIES 9820:8YXML nidx=null]
Lagenopsis
 - Lagenopsis Edmonds, 1980 [ACCEPTED SUBGENUS 9817:8W3XT nidx=null]
 + Lagenopsis Edmonds, 1980 [ACCEPTED SUBGENUS 9820:7Q7N2 nidx=null]
Lambrus macrochelos
 - Lambrus macrochelos [SYNONYM SPECIES 9817:3RYVD nidx=null parent=4Z5Q9]
 + Lambrus macrochelos (Herbst, 1790 [in Herbst, 1782-1790] ) [SYNONYM SPECIES 9820:8YXMP nidx=null parent=4Z5Q9]
Lamprempis diaphorina
 - Lamprempis diaphorina Osten Sacken, 1887 [SYNONYM SPECIES 9817:8954K nidx=null parent=8CG7J]
 + Lamprempis diaphorina Osten Sacken, 1887 [ACCEPTED SPECIES 9820:3S3VR nidx=null]
Lamprologus lemairii
 - Lamprologus lemairii Boulenger, 1899 [ACCEPTED SPECIES 9817:8V94R nidx=null]
 + Lamprologus lemairii Boulenger, 1899 [ACCEPTED SPECIES 9820:8YXMS nidx=null]
Laneella nigripes
 - Laneella nigripes Guimarães, 1977 [SYNONYM SPECIES 9817:895DP nidx=null parent=8CT8H]
 + Laneella nigripes Guimarães, 1977 [ACCEPTED SPECIES 9820:3S6TJ nidx=null]
Laphria affinis
 - Laphria affinis Macquart, 1855 [ACCEPTED SPECIES 9817:3S8XJ nidx=null]
 + Laphria affinis Fabricius, 1805 [SYNONYM SPECIES 9820:3S8XK nidx=null parent=8CG82]
Laphria auricincta
 - Laphria auricincta Wulp, 1872 [ACCEPTED SPECIES 9817:3S8YQ nidx=null]
 + Laphria auricincta Loew, 1851 [SYNONYM SPECIES 9820:8YTBJ nidx=null parent=3S5S4]
Laphria bicolor
 - Laphria bicolor Macquart, 1834 [ACCEPTED SPECIES 9817:88HH3 nidx=null]
 + Laphria bicolor Wiedemann, 1828 [SYNONYM SPECIES 9820:8YTBK nidx=null parent=6NVBL]
Laphria brevipennis
 - Laphria brevipennis Meigen, 1838 [SYNONYM SPECIES 9817:8CGF6 nidx=null parent=349L4]
 + Laphria brevipennis Meigen, 1835 [SYNONYM SPECIES 9820:8YTBL nidx=null parent=349L4]
Laphria notabilis
 - Laphria notabilis Walker, 1857 [ACCEPTED SPECIES 9817:3S97M nidx=null]
 + Laphria notabilis Macquart, 1838 [SYNONYM SPECIES 9820:8YTBV nidx=null parent=6NVQB]
Laphria ruficauda
 - Laphria ruficauda Williston, 1885 [ACCEPTED SPECIES 9817:3S98W nidx=null]
 + Laphria ruficauda Fabricius, 1805 [SYNONYM SPECIES 9820:8YTBW nidx=null parent=349P9]
Laphria scutellata
 - Laphria scutellata Macquart, 1834 [ACCEPTED SPECIES 9817:3S99C nidx=null]
 + Laphria scutellata Macquart, 1835 [ACCEPTED SPECIES 9820:8YTBX nidx=null]
Laphria varipes
 - Laphria varipes Bigot, 1878 [ACCEPTED SPECIES 9817:6NWH2 nidx=null]
 + Laphria varipes McAtee, 1919 [AMBIGUOUS_SYNONYM SPECIES 9820:6NWGP nidx=null parent=3S93W]
 + Laphria varipes Macquart, 1834 [AMBIGUOUS_SYNONYM SPECIES 9820:6NWGQ nidx=null parent=3S94C]
Lapposyrphus
 - Lapposyrphus [ACCEPTED SUBGENUS 9817:89SK6 nidx=null]
 + Lapposyrphus [ACCEPTED GENUS 9820:8YQT2 nidx=null]
Lapyruta fasciventris
 - Lapyruta fasciventris Williston, 1896 [SYNONYM SPECIES 9817:895JH nidx=null parent=8CGKK]
 + Lapyruta fasciventris Williston, 1896 [ACCEPTED SPECIES 9820:3S9ZT nidx=null]
Lasiambia
 - Lasiambia [ACCEPTED SUBGENUS 9817:89SK8 nidx=null]
 + Lasiambia [ACCEPTED GENUS 9820:8YQT4 nidx=null]
Lasiopogon anaphlecter
 - Lasiopogon anaphlecter McKknight, 2020 [ACCEPTED SPECIES 9817:8CGQR nidx=null]
 + Lasiopogon anaphlecter McKnight, 2020 [ACCEPTED SPECIES 9820:8YTC4 nidx=null]
Lasiopogon apoecus
 - Lasiopogon apoecus McKknight, 2020 [ACCEPTED SPECIES 9817:8CGQS nidx=null]
 + Lasiopogon apoecus McKnight, 2020 [ACCEPTED SPECIES 9820:8YTC5 nidx=null]
Lasiopogon asilomar
 - Lasiopogon asilomar McKknight, 2020 [ACCEPTED SPECIES 9817:8CGQT nidx=null]
 + Lasiopogon asilomar McKnight, 2020 [ACCEPTED SPECIES 9820:8YTC6 nidx=null]
Lasiopogon bitumineus
 - Lasiopogon bitumineus McKknight, 2020 [ACCEPTED SPECIES 9817:8CGQV nidx=null]
 + Lasiopogon bitumineus McKnight, 2020 [ACCEPTED SPECIES 9820:8YTC7 nidx=null]
Lasiopogon canningsi
 - Lasiopogon canningsi McKknight, 2020 [ACCEPTED SPECIES 9817:8CGQW nidx=null]
 + Lasiopogon canningsi McKnight, 2020 [ACCEPTED SPECIES 9820:8YTC8 nidx=null]
Lasiopogon condylophorus
 - Lasiopogon condylophorus McKknight, 2020 [ACCEPTED SPECIES 9817:8CGQX nidx=null]
 + Lasiopogon condylophorus McKnight, 2020 [ACCEPTED SPECIES 9820:8YTC9 nidx=null]
Lasiopogon esau
 - Lasiopogon esau McKknight, 2020 [ACCEPTED SPECIES 9817:8CGQY nidx=null]
 + Lasiopogon esau McKnight, 2020 [ACCEPTED SPECIES 9820:8YTCB nidx=null]
Lasiopogon karli
 - Lasiopogon karli McKknight, 2020 [ACCEPTED SPECIES 9817:8CGQZ nidx=null]
 + Lasiopogon karli McKnight, 2020 [ACCEPTED SPECIES 9820:8YTCC nidx=null]
Lasiopogon nelsoni
 - Lasiopogon nelsoni McKknight, 2020 [ACCEPTED SPECIES 9817:8CGR2 nidx=null]
 + Lasiopogon nelsoni McKnight, 2020 [ACCEPTED SPECIES 9820:8YTCD nidx=null]
Lasiopogon odontotus
 - Lasiopogon odontotus McKknight, 2020 [ACCEPTED SPECIES 9817:8CGR3 nidx=null]
 + Lasiopogon odontotus McKnight, 2020 [ACCEPTED SPECIES 9820:8YTCF nidx=null]
Lasiopogon sierra
 - Lasiopogon sierra McKknight, 2020 [ACCEPTED SPECIES 9817:8CGR4 nidx=null]
 + Lasiopogon sierra McKnight, 2020 [ACCEPTED SPECIES 9820:8YTCG nidx=null]
Lasiopogon tumulicola
 - Lasiopogon tumulicola McKknight, 2020 [ACCEPTED SPECIES 9817:8CGR5 nidx=null]
 + Lasiopogon tumulicola McKnight, 2020 [ACCEPTED SPECIES 9820:8YTCH nidx=null]
Lasiopogon wilcoxi
 - Lasiopogon wilcoxi McKknight, 2020 [ACCEPTED SPECIES 9817:8CGR6 nidx=null]
 + Lasiopogon wilcoxi McKnight, 2020 [ACCEPTED SPECIES 9820:8YTCJ nidx=null]
Lathriopyga conjucta
 - Lathriopyga conjucta Cassagnau, 1966 [SYNONYM SPECIES 9817:3SJ88 nidx=null parent=355KX]
 + Lathriopyga conjucta Nosek, 1957 [SYNONYM SPECIES 9820:8Z6LQ nidx=null parent=355KX]
Lauxanacanthis barbipes
 - Lauxanacanthis barbipes Bigot, 1860 [SYNONYM SPECIES 9817:6P4GJ nidx=null parent=66L5T]
 + Lauxanacanthis barbipes Bigot, 1859 [SYNONYM SPECIES 9820:8YTCP nidx=null parent=66L5T]
Leeuwenhoekiidae
 - Leeuwenhoekiidae [ACCEPTED FAMILY 9817:624WL nidx=null]
 + Leeuwenhoekiidae Womersley, 1944 [ACCEPTED FAMILY 9820:8YPZN nidx=null]
Leia bifasciata
 - Leia bifasciata (Roser, 1840) [ACCEPTED SPECIES 9817:895TQ nidx=null]
 + Leia bifasciata Gimmerthal, 1846 [SYNONYM SPECIES 9820:3SXJD nidx=null parent=6P7QB]
Leia sororcula
 - Leia sororcula Loew, 1870 [ACCEPTED SPECIES 9817:88HNZ nidx=null]
 + Leia sororcula Loew, 1870 [SYNONYM SPECIES 9820:3SXNR nidx=null parent=4TB9W]
Leia subfasciata
 - Leia subfasciata (Meigen, 1818) [ACCEPTED SPECIES 9817:3SXP2 nidx=null]
 + Leia subfasciata (Wiedemann, 1818) [ACCEPTED SPECIES 9820:8YTCQ nidx=null]
Lepidiota pruinosa
 - Lepidiota pruinosa Blanchard, 1851 [AMBIGUOUS_SYNONYM SPECIES 9817:6P9DT nidx=null parent=6P9P6]
 + Lepidiota pruinosa Blanchard, 1850 [SYNONYM SPECIES 9820:8YX5J nidx=null parent=6P9P6]
Lepidocyrtinus annulicornis
 - Lepidocyrtinus annulicornis (Oudemans, 1890) [ACCEPTED SPECIES 9817:6PCFY nidx=null]
 + Lepidocyrtinus annulicornis (Börner, 1903) [ACCEPTED SPECIES 9820:8Z6LV nidx=null]
 + Lepidocyrtinus annulicornis Cipola, NG, de Morais, JW & Bellini, BC, 2020 [AMBIGUOUS_SYNONYM SPECIES 9820:8Z6LW nidx=null parent=5CGJ]
 + Lepidocyrtinus annulicornis Szeptycki, 1979 [AMBIGUOUS_SYNONYM SPECIES 9820:8Z6LX nidx=null parent=5CGJ]
Lepidocyrtinus dapeste
 - Lepidocyrtinus dapeste (Bellini, Santos & Souza, 2018) [ACCEPTED SPECIES 9817:6PCFX nidx=null]
 + Lepidocyrtinus dapeste (Bellini, Santos, Souza & Weiner, 2019) [ACCEPTED SPECIES 9820:8Z3RL nidx=null]
Lepidocyrtinus domesticus
 - Lepidocyrtinus domesticus Börner, 1903 [AMBIGUOUS_SYNONYM SPECIES 9817:6PCFS nidx=null parent=6YCF4]
 + Lepidocyrtinus domesticus Denis, 1931 [SYNONYM SPECIES 9820:8Z6M2 nidx=null parent=6YCDC]
Lepidocyrtus (Lanocyrtus) floridensis
 - Lepidocyrtus (Lanocyrtus) floridensis Snider, RJ, 1967 [ACCEPTED SPECIES 9817:3TBDF nidx=null]
 + Lepidocyrtus (Lanocyrtus) floridensis Folsom JW in Snider, RJ, 1967 [ACCEPTED SPECIES 9820:8YYQ3 nidx=null]
Lepidocyrtus (Lanocyrtus) pallidus
 - Lepidocyrtus (Lanocyrtus) pallidus Reuter, 1890 [ACCEPTED SPECIES 9817:3TBDM nidx=null]
 + Lepidocyrtus (Lanocyrtus) pallidus Reuter, OM, 1892 [ACCEPTED SPECIES 9820:8YYQC nidx=null]
Lepidocyrtus (Lepidocyrtus) dentilus
 - Lepidocyrtus (Lepidocyrtus) dentilus Winter, 1963 [ACCEPTED SPECIES 9817:6PCHZ nidx=null]
 + Lepidocyrtus (Lepidocyrtus) dentilus [ACCEPTED SPECIES 9820:8ZNJW nidx=null]
Lepidocyrtus (Lepidocyrtus) epiphytus
 - Lepidocyrtus (Lepidocyrtus) epiphytus Winter, 1963 [ACCEPTED SPECIES 9817:6PCHQ nidx=null]
 + Lepidocyrtus (Lepidocyrtus) epiphytus [ACCEPTED SPECIES 9820:8ZNF2 nidx=null]
Lepidocyrtus (Lepidocyrtus) pseudopictus
 - Lepidocyrtus (Lepidocyrtus) pseudopictus Womersley, 1934 [ACCEPTED SPECIES 9817:3TBH2 nidx=null]
 + Lepidocyrtus (Lepidocyrtus) pseudopictus Womersley, 1928 [ACCEPTED SPECIES 9820:8Z6MN nidx=null]
Lepidocyrtus (Lepidocyrtus) tropicus
 - Lepidocyrtus (Lepidocyrtus) tropicus Winter, 1963 [ACCEPTED SPECIES 9817:3TBHL nidx=null]
 + Lepidocyrtus (Lepidocyrtus) tropicus [ACCEPTED SPECIES 9820:8ZMXJ nidx=null]
Lepidocyrtus (Lepidocyrtus) violaceus
 - Lepidocyrtus (Lepidocyrtus) violaceus (Fourcroy, 1785) [ACCEPTED SPECIES 9817:3TBHY nidx=null]
 + Lepidocyrtus (Lepidocyrtus) violaceus (Geoffroy in Fourcroy, 1785) [ACCEPTED SPECIES 9820:8YYQL nidx=null]
Lepidocyrtus americanus
 - Lepidocyrtus americanus Christiansen, K & Bellinger, P, 1998 [AMBIGUOUS_SYNONYM SPECIES 9817:3TBJR nidx=null parent=5BZND]
 - Lepidocyrtus americanus Salmon, JT, 1964 [AMBIGUOUS_SYNONYM SPECIES 9817:3TBJS nidx=null parent=5BZNG]
 + Lepidocyrtus americanus Marlatt, 1896 [SYNONYM SPECIES 9820:8Z6M9 nidx=null parent=5BZND]
Lepidocyrtus assimilis
 - Lepidocyrtus assimilis Reuter, 1890 [AMBIGUOUS_SYNONYM SPECIES 9817:3TBJX nidx=null parent=3TBD8]
 + Lepidocyrtus assimilis Folsom, JW, 1919 [AMBIGUOUS_SYNONYM SPECIES 9820:8Z5F4 nidx=null parent=3TBD8]
 + Lepidocyrtus assimilis Gisin, H, 1965 [AMBIGUOUS_SYNONYM SPECIES 9820:8Z5F5 nidx=null parent=8YYQL]
 + Lepidocyrtus assimilis Maynard, EA, 1951 [AMBIGUOUS_SYNONYM SPECIES 9820:8Z5F6 nidx=null parent=3TBD8]
 + Lepidocyrtus assimilis Christiansen, K & Bellinger, P, 1980 [AMBIGUOUS_SYNONYM SPECIES 9820:8Z5F7 nidx=null parent=8YYQL]
 + Lepidocyrtus assimilis Handschin, E in Dahl, F, 1929 [AMBIGUOUS_SYNONYM SPECIES 9820:8Z5F8 nidx=null parent=3TBD8]
 + Lepidocyrtus assimilis Gisin, H, 1960 [AMBIGUOUS_SYNONYM SPECIES 9820:8Z5F9 nidx=null parent=3TBD8]
 + Lepidocyrtus assimilis Reuter, OM, 1892 [AMBIGUOUS_SYNONYM SPECIES 9820:8Z5FB nidx=null parent=8YYQL]
Lepidocyrtus pulchellus
 - Lepidocyrtus pulchellus Denis, 1927 [SYNONYM SPECIES 9817:3TBLZ nidx=null parent=3TBH8]
 + Lepidocyrtus pulchellus Nosek, 1962 [SYNONYM SPECIES 9820:8Z3RS nidx=null parent=3TBH8]
 + Lepidocyrtus pulchellus Gisin, H, 1960 [SYNONYM SPECIES 9820:8Z3RT nidx=null parent=3TBH8]
 + Lepidocyrtus pulchellus Denis, 1941 [SYNONYM SPECIES 9820:8Z3RV nidx=null parent=3TBH8]
 + Lepidocyrtus pulchellus Salmon, JT, 1964 [SYNONYM SPECIES 9820:8Z3RW nidx=null parent=3TBH8]
 + Lepidocyrtus pulchellus Zangheri, 1966 [SYNONYM SPECIES 9820:8Z3RX nidx=null parent=3TBH8]
 + Lepidocyrtus pulchellus Palissa, A in Brohmer, P, Ehrmann, P & Ulmer, G, 1964 [SYNONYM SPECIES 9820:8Z3RY nidx=null parent=3TBH8]
Leptarthrus vitripennis
 - Leptarthrus vitripennis (Meigen, 1804) [ACCEPTED SPECIES 9817:6PDV4 nidx=null]
 + Leptarthrus vitripennis (Meigen, 1820) [ACCEPTED SPECIES 9820:8YTCS nidx=null]
Leptocera maculinea
 - Leptocera maculinea Richards, 1965 [SYNONYM SPECIES 9817:896DR nidx=null parent=8DKP6]
 + Leptocera maculinea Richards, 1966 [SYNONYM SPECIES 9820:8YTD6 nidx=null parent=8YVS6]
Leptoconops albiventris
 - Leptoconops albiventris Meijere, 1913 [ACCEPTED SPECIES 9817:3TMJ6 nidx=null]
 + Leptoconops albiventris Meijere, 1915 [SYNONYM SPECIES 9820:8YTDD nidx=null parent=8CHY5]
Leptogaster dorsalis
 - Leptogaster dorsalis Williston, 1901 [ACCEPTED SPECIES 9817:3TP57 nidx=null]
 + Leptogaster dorsalis Dahlbom, 1850 [SYNONYM SPECIES 9820:3TP58 nidx=null parent=3TP4W]
Leptogaster obscuripennis
 - Leptogaster obscuripennis Johnson, 1895 [ACCEPTED SPECIES 9817:3TP8Q nidx=null]
 + Leptogaster obscuripennis Loew, 1851 [SYNONYM SPECIES 9820:8YTDS nidx=null parent=6NYL2]
Leptogaster varipes
 - Leptogaster varipes Wulp, 1880 [ACCEPTED SPECIES 9817:3TPBJ nidx=null]
 + Leptogaster varipes Loew, 1862 [SYNONYM SPECIES 9820:3TPBK nidx=null parent=L5BP]
Lespesia afra
 - Lespesia afra (Wulp, 1890) [ACCEPTED SPECIES 9817:723HX nidx=null]
 + Lespesia afra (Wulp, 1888) [ACCEPTED SPECIES 9820:8YTDW nidx=null]
Lessinosoma
 - Lessinosoma Strasser, 1977 [ACCEPTED GENUS 9817:7PMQK nidx=null]
 + Lessinosoma [ACCEPTED GENUS 9820:5DMB nidx=null]
Leucopholis (Lepidiota) manillae
 - Leucopholis (Lepidiota) manillae Redtenbacher, 1867 [SYNONYM SPECIES 9817:6PSTK nidx=null parent=6WKDC]
 + Leucopholis (Lepidiota) manillae Redtenbacher, 1868 [SYNONYM SPECIES 9820:8YX5K nidx=null parent=6WKDC]
Leucosia major
 - Leucosia major H.-L. Chen & P.K.L. Ng, 2003 [SYNONYM SPECIES 9817:6Q5P5 nidx=null parent=4XYP5]
 + Leucosia major HL Chen & PKL Ng, 2003 [SYNONYM SPECIES 9820:8YXR8 nidx=null parent=8YYW5]
Leucosia singaporensis
 - Leucosia singaporensis H.-L. Chen & P.K.L. Ng, 2003 [SYNONYM SPECIES 9817:6Q623 nidx=null parent=4XYP4]
 + Leucosia singaporensis HL Chen & PKL Ng, 2003 [SYNONYM SPECIES 9820:8YXR9 nidx=null parent=4XYP4]
Limnophora acrostichalis
 - Limnophora acrostichalis Shinonaga, 2005 [ACCEPTED SPECIES 9817:72D6J nidx=null]
 + Limnophora acrostichalis Stein, 1916 [SYNONYM SPECIES 9820:8YTF8 nidx=null parent=4Z3RQ]
Limnophora latifrons
 - Limnophora latifrons Zhang & Xue, 1996 [ACCEPTED SPECIES 9817:6QCWJ nidx=null]
 + Limnophora latifrons Stein, 1916 [SYNONYM SPECIES 9820:6QD8J nidx=null parent=4Z3S3]
Limnophora malaisei
 - Limnophora malaisei Shinonaga, 2005 [PROVISIONALLY_ACCEPTED SPECIES 9817:6QCVZ nidx=null]
 - Limnophora malaisei Emden, 1965 [ACCEPTED SPECIES 9817:6QD7Z nidx=null]
 + Limnophora malaisei Ringdahl, 1920 [SYNONYM SPECIES 9820:8YTFC nidx=null parent=4Z3WJ]
Limnophora montana
 - Limnophora montana Shinonaga, 2005 [ACCEPTED SPECIES 9817:72D7V nidx=null]
 + Limnophora montana Stein, 1916 [SYNONYM SPECIES 9820:72CW7 nidx=null parent=4Z3VX]
Limnophora nigrifrons
 - Limnophora nigrifrons Shinonaga, 2005 [ACCEPTED SPECIES 9817:72D7T nidx=null]
 + Limnophora nigrifrons Stein, 1920 [SYNONYM SPECIES 9820:72CW5 nidx=null parent=4Z3WZ]
Limnophora septentrionalis
 - Limnophora septentrionalis Xue, 1984 [ACCEPTED SPECIES 9817:6QCWV nidx=null]
 + Limnophora septentrionalis Ringdahl, 1918 [SYNONYM SPECIES 9820:8YTFH nidx=null parent=4Z3YS]
Limnophora setitibia
 - Limnophora setitibia Shinonaga, 2005 [ACCEPTED SPECIES 9817:6QCX4 nidx=null]
 + Limnophora setitibia Stein, 1911 [SYNONYM SPECIES 9820:8YTFJ nidx=null parent=53MMH]
Limnophyes brevis
 - Limnophyes brevis Chaudhuri, Sinharay & Gupta, 1979 [ACCEPTED SPECIES 9817:72D9S nidx=null]
 + Limnophyes brevis Goetghebuer, 1934 [SYNONYM SPECIES 9820:6QCXP nidx=null parent=72CJZ]
Limnophyes seiryuijeus
 - Limnophyes seiryuijeus Sasa, Suzuki & Sakai, 1998 [ACCEPTED SPECIES 9817:72CK3 nidx=null]
 + Limnophyes seiryuijeus Sasa, Suzuki & Sakai, 1988 [SYNONYM SPECIES 9820:8YTFM nidx=null parent=84X]
Limosina brevicostata
 - Limosina brevicostata Duda, 1925 [ACCEPTED SPECIES 9817:8CMCY nidx=null]
 + Limosina brevicostata Duda, 1918 [SYNONYM SPECIES 9820:8YTFW nidx=null parent=4Z5GJ]
Limosina lugubris
 - Limosina lugubris Dufour, 1839 [ACCEPTED SPECIES 9817:6QFFG nidx=null]
 + Limosina lugubris Williston, 1896 [AMBIGUOUS_SYNONYM SPECIES 9820:72FFJ nidx=null parent=8DK98]
 + Limosina lugubris Haliday, 1836 [AMBIGUOUS_SYNONYM SPECIES 9820:8YTFY nidx=null parent=5ZYFX]
Lindebergia kadamtullaensis
 - Lindebergia kadamtullaensis Maheshwari & Maheshwari, 2001 [ACCEPTED SPECIES 9817:72GHF nidx=null]
 + Lindebergia kadamtullaensis Maheshwari & Maheshwari, 2002 [ACCEPTED SPECIES 9820:8YTFZ nidx=null]
Linnaemya (Ophina) obscurellina
 - Linnaemya (Ophina) obscurellina Mesnil, 1917 [ACCEPTED SPECIES 9817:8CMJR nidx=null]
 + Linnaemya (Ophina) obscurellina Mesnil, 1971 [ACCEPTED SPECIES 9820:8YTG3 nidx=null]
Linnaemya obscurellina
 - Linnaemya obscurellina Mesnil, 1917 [SYNONYM SPECIES 9817:8988K nidx=null parent=8CMJR]
 + Linnaemya obscurellina Mesnil, 1971 [SYNONYM SPECIES 9820:8YTG4 nidx=null parent=8YTG3]
Liponeura klapaleki
 - Liponeura klapaleki Vimmer [ACCEPTED SPECIES 9817:898H6 nidx=null]
 + Liponeura klapaleki Vimmer, 1916 [SYNONYM SPECIES 9820:3VB28 nidx=null parent=3VB29]
Lipothrix bernardi
 - Lipothrix bernardi Delamare Deboutteville, 1954 [ACCEPTED SPECIES 9817:6QK2R nidx=null]
 + Lipothrix bernardi (Delamare Deboutteville, 1953) [ACCEPTED SPECIES 9820:8Z6NY nidx=null]
Lispe tetrastigma
 - Lispe tetrastigma Schiner [ACCEPTED SPECIES 9817:898HS nidx=null]
 + Lispe tetrastigma Schiner, 1868 [SYNONYM SPECIES 9820:72JW9 nidx=null parent=3VDWR]
Listrochelus
 - Listrochelus Blanchard, 1851 [ACCEPTED GENUS 9817:5FJB nidx=null]
 + Listrochelus Blanchard, 1850 [ACCEPTED GENUS 9820:8YX2P nidx=null]
Lonchaea ruficornis
 - Lonchaea ruficornis Malloch, 1920 [ACCEPTED SPECIES 9817:3VXMT nidx=null]
 + Lonchaea ruficornis Becker, 1905 [SYNONYM SPECIES 9820:6QMXM nidx=null parent=3VXJF]
Loripes lacteus
 - Loripes lacteus sensu Poli, 1791 [SYNONYM SPECIES 9817:3W7FB nidx=null parent=3W7FH]
 + Loripes lacteus (Linnaeus, 1758) [SYNONYM SPECIES 9820:8YXSP nidx=null parent=3W7FH]
Lucilia violacea
 - Lucilia violacea Gimmerthal, 1842 [ACCEPTED SPECIES 9817:3WC47 nidx=null]
 + Lucilia violacea Macquart, 1834 [SYNONYM SPECIES 9820:3WC44 nidx=null parent=4QR6Z]
Lumbrinereis hebes
 - Lumbrinereis hebes Verrill, 1880 [SYNONYM SPECIES 9817:8559F nidx=null parent=87557]
 + Lumbrinereis hebes Verrill, 1879 [SYNONYM SPECIES 9820:8YWW5 nidx=null parent=8YWXH]
Lumbrineris hebes
 - Lumbrineris hebes Verrill, 1880 [SYNONYM SPECIES 9817:85376 nidx=null parent=87557]
 + Lumbrineris hebes Verrill, 1879 [SYNONYM SPECIES 9820:8YWW6 nidx=null parent=8YWXH]
Luria isabella isabella
 - Luria isabella isabella (Linnaeus, 1758) [ACCEPTED SUBSPECIES 9817:8SY8J nidx=null]
 + Luria isabella isabella (Linnaeus, 1758) [SYNONYM SUBSPECIES 9820:5JFQG nidx=null parent=6QPPF]
Luteocarcinus sordidus
 - Luteocarcinus sordidus P.K.L. Ng, 1990 [ACCEPTED SPECIES 9817:3WG32 nidx=null]
 + Luteocarcinus sordidus PKL Ng, 1990 [ACCEPTED SPECIES 9820:8YXT3 nidx=null]
Lutzia
 - Lutzia [ACCEPTED SUBGENUS 9817:8V4FG nidx=null]
 - Lutzia [ACCEPTED SUBGENUS 9817:8VTJ2 nidx=null]
 + Lutzia [ACCEPTED GENUS 9820:8YQHF nidx=null]
Lutzia allostigma
 - Lutzia allostigma Howard, Dyar & Knab, 1915 [SYNONYM SPECIES 9817:8999Q nidx=null parent=8CNLD]
 + Lutzia allostigma Howard, Dyar & Knab, 1915 [ACCEPTED SPECIES 9820:3WGL2 nidx=null]
Lydella cinerea
 - Lydella cinerea Robineau-Desvoidy, 1863 [ACCEPTED SPECIES 9817:6R3FL nidx=null]
 + Lydella cinerea Macquart, 1834 [SYNONYM SPECIES 9820:8YTJC nidx=null parent=3Z2WY]
Machaomyia caudata
 - Machaomyia caudata Hendel, 1915 [ACCEPTED SPECIES 9817:3WYSK nidx=null]
 + Machaomyia caudata Hendel, 1914 [SYNONYM SPECIES 9820:8YTJF nidx=null parent=89TSC]
Macraspis concoloripes
 - Macraspis concoloripes (Blanchard, 1851) [ACCEPTED SPECIES 9817:3X2BH nidx=null]
 + Macraspis concoloripes (Blanchard, 1850) [ACCEPTED SPECIES 9820:8YX5R nidx=null]
Macraspis concoloripes concoloripes
 - Macraspis concoloripes concoloripes (Blanchard, 1851) [ACCEPTED SUBSPECIES 9817:7ZC67 nidx=null]
 + Macraspis concoloripes concoloripes (Blanchard, 1850) [ACCEPTED SUBSPECIES 9820:8YXCV nidx=null]
Macraspis festiva pantochloris
 - Macraspis festiva pantochloris (Blanchard, 1851) [ACCEPTED SUBSPECIES 9817:5JH3D nidx=null]
 + Macraspis festiva pantochloris (Blanchard, 1850) [ACCEPTED SUBSPECIES 9820:8YXCW nidx=null]
Macraspis pubiventris
 - Macraspis pubiventris (Blanchard, 1851) [ACCEPTED SPECIES 9817:3X2CW nidx=null]
 + Macraspis pubiventris (Blanchard, 1850) [ACCEPTED SPECIES 9820:8YX5S nidx=null]
Macrocera elegantissima
 - Macrocera elegantissima Meunier, 1899 [ACCEPTED SPECIES 9817:8CPGV nidx=null]
 + Macrocera elegantissima Meunier, 1904 [SYNONYM SPECIES 9820:8YTJH nidx=null parent=8Z94K]
Macrocera maculata
 - Macrocera maculata Meigen, 1818 [ACCEPTED SPECIES 9817:3X3NL nidx=null]
 + Macrocera maculata Wiedemann, 1818 [ACCEPTED SPECIES 9820:8YTJJ nidx=null]
Macrocera phalerata
 - Macrocera phalerata Meigen, 1818 [ACCEPTED SPECIES 9817:3X3PV nidx=null]
 + Macrocera phalerata Wiedemann, 1818 [ACCEPTED SPECIES 9820:8YTJL nidx=null]
Madagopsina freidbergi
 - Madagopsina freidbergi Feijen & Feijen, 2017 [ACCEPTED SPECIES 9817:8CPRR nidx=null]
 + Madagopsina freidbergi Feijen, Feijen & Feijen, 2018 [ACCEPTED SPECIES 9820:8YTJN nidx=null]
Madagopsina parvapollina
 - Madagopsina parvapollina Feijen & Feijen, 2017 [ACCEPTED SPECIES 9817:8CPRS nidx=null]
 + Madagopsina parvapollina Feijen, Feijen & Feijen, 2018 [ACCEPTED SPECIES 9820:8YTJP nidx=null]
Madagopsina tschirnausi
 - Madagopsina tschirnausi Feijen & Feijen, 2017 [ACCEPTED SPECIES 9817:8CPRT nidx=null]
 + Madagopsina tschirnausi Feijen, Feijen & Feijen, 2018 [ACCEPTED SPECIES 9820:8YTJQ nidx=null]
Magelona papilliformis
 - Magelona papilliformis Müller in Grube, 1858 [ACCEPTED SPECIES 9817:3XGSV nidx=null]
 + Magelona papilliformis [auctt. misspelling for papillicornis] [SYNONYM SPECIES 9820:8YWW8 nidx=null parent=6R5JD]
Magelona wilsoni
 - Magelona wilsoni Glémarec, 1966 [ACCEPTED SPECIES 9817:3XGTL nidx=null]
 + Magelona wilsoni Glémarec, 1967 [ACCEPTED SPECIES 9820:8YWW9 nidx=null]
Maladera (Maladera) sinica
 - Maladera (Maladera) sinica (Hope, 1842) [ACCEPTED SPECIES 9817:7ZPP8 nidx=null]
 + Maladera (Maladera) sinica (Hope, 1845) [ACCEPTED SPECIES 9820:8YX5T nidx=null]
Maldane filifera
 - Maldane filifera Verrill, 1880 [SYNONYM SPECIES 9817:3XMLS nidx=null parent=776MR]
 + Maldane filifera Verrill, 1879 [SYNONYM SPECIES 9820:8YWWB nidx=null parent=8YWWV]
Mallophora vegeta
 - Mallophora vegeta Lynch Arribálzaga, 1882 [ACCEPTED SPECIES 9817:3XPHS nidx=null]
 + Mallophora vegeta Lynch Arribálzaga, 1883 [ACCEPTED SPECIES 9820:8YTJW nidx=null]
Mallota meromacrimima
 - Mallota meromacrimima Hull, 1941 [SYNONYM SPECIES 9817:89BC4 nidx=null parent=8CPS4]
 + Mallota meromacrimima Hull, 1941 [ACCEPTED SPECIES 9820:3XPS2 nidx=null]
Manota grootaerti
 - Manota grootaerti Kurina & Hippa, 2017 [ACCEPTED SPECIES 9817:8CPXR nidx=null]
 + Manota grootaerti Kurina & Hippa, 2014 [ACCEPTED SPECIES 9820:8YTJY nidx=null]
Manota peltata
 - Manota peltata Kurina & Hippa, 2017 [ACCEPTED SPECIES 9817:8CPZ4 nidx=null]
 + Manota peltata Kurina & Hippa, 2014 [ACCEPTED SPECIES 9820:8YTK2 nidx=null]
Manota peltigera
 - Manota peltigera Kurina & Hippa, 2017 [ACCEPTED SPECIES 9817:8CPZ5 nidx=null]
 + Manota peltigera Kurina & Hippa, 2014 [ACCEPTED SPECIES 9820:8YTK3 nidx=null]
Manota reclinata
 - Manota reclinata Kurina & Hippa, 2017 [ACCEPTED SPECIES 9817:8CPZS nidx=null]
 + Manota reclinata Kurina & Hippa, 2014 [ACCEPTED SPECIES 9820:8YTK4 nidx=null]
Manota wittei
 - Manota wittei Kurina & Hippa, 2017 [ACCEPTED SPECIES 9817:8CQ2X nidx=null]
 + Manota wittei Kurina & Hippa, 2014 [ACCEPTED SPECIES 9820:8YTK5 nidx=null]
Margarita miliaris
 - Margarita miliaris Seguenza G., 1876 [SYNONYM SPECIES 9817:3Y3X8 nidx=null parent=72KSD]
 + Margarita miliaris G. Seguenza, 1876 [SYNONYM SPECIES 9820:8YXV9 nidx=null parent=72KSD]
Masicera cylindrica
 - Masicera cylindrica Perris, 1852 [ACCEPTED SPECIES 9817:3YBGC nidx=null]
 + Masicera cylindrica Macquart, 1851 [SYNONYM SPECIES 9820:3YBGD nidx=null parent=T2FC]
Masicera quadrimaculata
 - Masicera quadrimaculata Robineau-Desvoidy, 1863 [ACCEPTED SPECIES 9817:6QVCP nidx=null]
 + Masicera quadrimaculata Macquart, 1851 [SYNONYM SPECIES 9820:3YBJ9 nidx=null parent=3Z2Y7]
Medetera (Medetera) afra
 - Medetera (Medetera) afra Curran, 1924 [ACCEPTED SPECIES 9817:8CQBM nidx=null]
 + Medetera (Medetera) afra Curran, 1927 [ACCEPTED SPECIES 9820:8YTKR nidx=null]
Medyla (Coneuplecta) scalarina
 - Medyla (Coneuplecta) scalarina (L. Pfeiffer, 1851) [SYNONYM SPECIES 9817:7S3F8 nidx=null parent=5ZTGH]
 + Medyla (Coneuplecta) scalarina (L. Pfeiffer, 1852) [SYNONYM SPECIES 9820:8Z6Q4 nidx=null parent=8YWLB]
Megascops choliba cruciger
 - Megascops choliba cruciger (von Spix, 1824) [ACCEPTED SUBSPECIES 9817:8XJ8K nidx=null]
 + Megascops choliba cruciger (von Spix, 1824) [ACCEPTED SUBSPECIES 9820:8Z38W nidx=null]
Megascops choliba crucigerus
 - Megascops choliba crucigerus (von Spix, 1824) [SYNONYM SUBSPECIES 9817:8XJ8L nidx=null parent=8XJ8K]
 + Megascops choliba crucigerus (von Spix, 1824) [SYNONYM SUBSPECIES 9820:8Z38X nidx=null parent=8Z38W]
Megaselia keiseri
 - Megaselia keiseri Disney & Beyer, 2005 [ACCEPTED SPECIES 9817:3YY6R nidx=null]
 + Megaselia keiseri Beyer, 1965 [SYNONYM SPECIES 9820:8YTL3 nidx=null parent=8CRN5]
Megaspis capito
 - Megaspis capito Loew, 1858 [SYNONYM SPECIES 9817:89DG3 nidx=null parent=8DCGK]
 + Megaspis capito Loew, 1858 [SYNONYM SPECIES 9820:3YZ54 nidx=null parent=4HMGS]
Megaspis rufifacies
 - Megaspis rufifacies Doesburg, 1955 [SYNONYM SPECIES 9817:89DG5 nidx=null parent=8DCGL]
 + Megaspis rufifacies Doesburg, 1955 [SYNONYM SPECIES 9820:3YZ56 nidx=null parent=6VHL8]
Megaspis varipes
 - Megaspis varipes Doesburg, 1955 [SYNONYM SPECIES 9817:89DG7 nidx=null parent=8DCGL]
 + Megaspis varipes Doesburg, 1955 [SYNONYM SPECIES 9820:3YZ58 nidx=null parent=6VHL8]
Megasyrphus
 - Megasyrphus [ACCEPTED SUBGENUS 9817:89SNB nidx=null]
 + Megasyrphus [ACCEPTED GENUS 9820:8YQTB nidx=null]
Melanagromyza jonesi
 - Melanagromyza jonesi Spencer [ACCEPTED SPECIES 9817:89DKP nidx=null]
 + Melanagromyza jonesi Spencer, 1964 [SYNONYM SPECIES 9820:3Z5L8 nidx=null parent=59B6M]
Melania subplicata
 - Melania subplicata Schepman, 1896 [SYNONYM SPECIES 9817:6QXFV nidx=null parent=5X2XH]
 + Melania subplicata Schepman, 1880 [SYNONYM SPECIES 9820:8YXVT nidx=null parent=5X2XH]
Melanochaeta
 - Melanochaeta [ACCEPTED SUBGENUS 9817:8V4FW nidx=null]
 - Melanochaeta [ACCEPTED SUBGENUS 9817:8VTK9 nidx=null]
 + Melanochaeta [ACCEPTED GENUS 9820:8YQHS nidx=null]
Melanopsis bartolini
 - Melanopsis bartolini Capellini, 1873 [SYNONYM SPECIES 9817:6QX53 nidx=null parent=73954]
 + Melanopsis bartolini [sic] [SYNONYM SPECIES 9820:8YXVX nidx=null parent=73954]
Melanostoma agens
 - Melanostoma agens Curran, 1931 [SYNONYM SPECIES 9817:88M27 nidx=null parent=8DDSL]
 + Melanostoma agens Curran, 1931 [SYNONYM SPECIES 9820:3ZBF6 nidx=null parent=77PPZ]
Melanostoma chaetopoda
 - Melanostoma chaetopoda Davidson, 1922 [SYNONYM SPECIES 9817:88M2B nidx=null parent=8DDSG]
 + Melanostoma chaetopoda Davidson, 1922 [SYNONYM SPECIES 9820:3ZBFX nidx=null parent=4JPGC]
Melanostoma japonicum
 - Melanostoma japonicum Goot, 1964 [SYNONYM SPECIES 9817:89DQV nidx=null parent=8DDYW]
 + Melanostoma japonicum Goot, 1964 [SYNONYM SPECIES 9820:3ZBGY nidx=null parent=4JPLB]
Melanostoma johnsoni
 - Melanostoma johnsoni Jones, 1917 [SYNONYM SPECIES 9817:88M2L nidx=null parent=8DDV5]
 + Melanostoma johnsoni Jones, 1917 [SYNONYM SPECIES 9820:3ZBGZ nidx=null parent=4JPGW]
Melanostoma nitidiventris
 - Melanostoma nitidiventris Curran, 1931 [SYNONYM SPECIES 9817:88M2W nidx=null parent=8DDSN]
 + Melanostoma nitidiventris Curran, 1931 [SYNONYM SPECIES 9820:3ZBHG nidx=null parent=4JPJ4]
Melanostoma ontario
 - Melanostoma ontario Davidson, 1922 [SYNONYM SPECIES 9817:88M2Y nidx=null parent=8DDSN]
 + Melanostoma ontario Davidson, 1922 [SYNONYM SPECIES 9820:3ZBHP nidx=null parent=4JPJ4]
Melanostoma rostrata
 - Melanostoma rostrata Bigot, 1884 [SYNONYM SPECIES 9817:88M32 nidx=null parent=8DDSN]
 + Melanostoma rostrata Bigot, 1884 [SYNONYM SPECIES 9820:3ZBJ7 nidx=null parent=4JPJ4]
Melanostoma rufipes
 - Melanostoma rufipes Bigot, 1884 [SYNONYM SPECIES 9817:88M33 nidx=null parent=8DDSN]
 + Melanostoma rufipes Bigot, 1884 [SYNONYM SPECIES 9820:3ZBJ9 nidx=null parent=4JPJ4]
Melanostoma tigrina
 - Melanostoma tigrina Osten Sacken, 1877 [SYNONYM SPECIES 9817:88M35 nidx=null parent=8DDT4]
 + Melanostoma tigrina Osten Sacken, 1877 [SYNONYM SPECIES 9820:3ZBJK nidx=null parent=77PP4]
Meligramma
 - Meligramma [ACCEPTED SUBGENUS 9817:89SNQ nidx=null]
 + Meligramma [ACCEPTED GENUS 9820:8YQTC nidx=null]
Melinda cognata
 - Melinda cognata (Meigen, 1826) [ACCEPTED SPECIES 9817:3ZFG3 nidx=null]
 + Melinda cognata (Meigen, 1830) [ACCEPTED SPECIES 9820:8YTPQ nidx=null]
Mepachymerus sabroskyi
 - Mepachymerus sabroskyi Kanmiya [PROVISIONALLY_ACCEPTED SPECIES 9817:89DZ4 nidx=null]
 + Mepachymerus sabroskyi Kanmiya, 1977 [AMBIGUOUS_SYNONYM SPECIES 9820:3ZT2R nidx=null parent=3ZT2M]
Merodon femoratus
 - Merodon femoratus Sack, 1913 [SYNONYM SPECIES 9817:89F38 nidx=null parent=8CSZ3]
 + Merodon femoratus Sack, 1913 [ACCEPTED SPECIES 9820:3ZVGJ nidx=null]
Mesachorutes espagnoli
 - Mesachorutes espagnoli Selga, 1959 [SYNONYM SPECIES 9817:3ZXG3 nidx=null parent=74VWC]
 + Mesachorutes espagnoli Arbea, JI & Jordana, R, 1990 [AMBIGUOUS_SYNONYM SPECIES 9820:8Z6QK nidx=null parent=8ZNXX]
 + Mesachorutes espagnoli Arbea, JI & Jordana, R, 1990 [AMBIGUOUS_SYNONYM SPECIES 9820:8Z6QL nidx=null parent=6T7WC]
Mesembrinella purpurata
 - Mesembrinella purpurata Séguy, 1925 [ACCEPTED SPECIES 9817:89F82 nidx=null]
 + Mesembrinella purpurata Aldrich, 1922 [ACCEPTED SPECIES 9820:73CCV nidx=null]
Mesembrius ruficauda
 - Mesembrius ruficauda Bigot, 1883 [SYNONYM SPECIES 9817:89F8V nidx=null parent=8CT9G]
 + Mesembrius ruficauda Bigot, 1884 [SYNONYM SPECIES 9820:8YTQ2 nidx=null parent=8CT9G]
Mesorhagiophryne intcerta
 - Mesorhagiophryne intcerta Regional Geological Surveying Team, 1990 [SYNONYM SPECIES 9817:8CTLZ nidx=null parent=8CTLY]
 + Mesorhagiophryne intcerta Anonymous, 1990 [SYNONYM SPECIES 9820:8YTQQ nidx=null parent=8CTLY]
Metriocnemus amamianomalis
 - Metriocnemus amamianomalis Sasa, 1991 [ACCEPTED SPECIES 9817:42J3G nidx=null]
 + Metriocnemus amamianomalis Sasa, 1990 [SYNONYM SPECIES 9820:8YTQW nidx=null parent=8YTQX]
Metriocnemus seiryukeleus
 - Metriocnemus seiryukeleus Sasa, Suzuki & Sakai, 1998 [SYNONYM SPECIES 9817:89FMB nidx=null parent=8CTVZ]
 + Metriocnemus seiryukeleus Sasa, Suzuki & Sakai, 1988 [SYNONYM SPECIES 9820:8YTQS nidx=null parent=8ZWDX]
Metriocnemus seiryumeneus
 - Metriocnemus seiryumeneus Sasa, Suzuki & Sakai, 1998 [SYNONYM SPECIES 9817:89FMD nidx=null parent=8CTW3]
 + Metriocnemus seiryumeneus Sasa, Suzuki & Sakai, 1988 [SYNONYM SPECIES 9820:8YTQV nidx=null parent=8YTQT]
Micrapemon majusculum
 - Micrapemon majusculum Edwards, 1940 [SYNONYM SPECIES 9817:89FMZ nidx=null parent=8CTYC]
 + Micrapemon majusculum Edwards, 1940 [ACCEPTED SPECIES 9820:42QMM nidx=null]
Microcephalops conspectus
 - Microcephalops conspectus [ACCEPTED SPECIES 9817:89FND nidx=null]
 + Microcephalops conspectus (Hardy, 1949) [ACCEPTED SPECIES 9820:42SFC nidx=null]
Microchilus
 - Microchilus Blanchard, 1851 [ACCEPTED GENUS 9817:5RLS nidx=null]
 + Microchilus Blanchard, 1850 [ACCEPTED GENUS 9820:8YRPQ nidx=null]
Microdon bertonii
 - Microdon bertonii Bezzi [ACCEPTED SPECIES 9817:89FR3 nidx=null]
 + Microdon bertonii Bezzi, 1910 [SYNONYM SPECIES 9820:42VSM nidx=null parent=42VYJ]
Micropanope urinator
 - Micropanope urinator (A. Milne-Edwards, 1881) [SYNONYM SPECIES 9817:432BR nidx=null parent=5WFT6]
 + Micropanope urinator (A. Milne-Edwards, 1880) [SYNONYM SPECIES 9820:8YXWX nidx=null parent=5WFT6]
Micropeza atripes
 - Micropeza atripes Bezzi, 1895 [ACCEPTED SPECIES 9817:432WZ nidx=null]
 + Micropeza atripes Robineau-Desvoidy, 1830 [SYNONYM SPECIES 9820:432X2 nidx=null parent=8DVSZ]
Micropleuridae
 - Micropleuridae Baylis & Daubney, 1926 [ACCEPTED FAMILY 9817:8FV7Z nidx=null]
 + Micropleuridae Baylis & Daubney, 1922 [ACCEPTED FAMILY 9820:8YQZV nidx=null]
Microprosopa zlobini
 - Microprosopa zlobini Ozerov, 2008 [SYNONYM SPECIES 9817:89G7S nidx=null parent=8H3YP]
 + Microprosopa zlobini Ozerov, 2009 [SYNONYM SPECIES 9820:8YTRK nidx=null parent=8H3YP]
Microtendipes amamihosoides
 - Microtendipes amamihosoides Sasa, 1991 [ACCEPTED SPECIES 9817:73K2J nidx=null]
 + Microtendipes amamihosoides Sasa, 1990 [SYNONYM SPECIES 9820:8YTRQ nidx=null parent=437WF]
Minettia americana
 - Minettia americana Malloch [ACCEPTED SPECIES 9817:88P86 nidx=null]
 + Minettia americana Malloch, 1923 [SYNONYM SPECIES 9820:6RM73 nidx=null parent=8CVTC]
Miodomeris
 - Miodomeris Chavan, 1936 [ACCEPTED GENUS 9817:7P92Q nidx=null]
 + Miodomeris Chavan, 1938 [ACCEPTED GENUS 9820:8YSFF nidx=null]
Miridiba (Miridiba) coromandeliana
 - Miridiba (Miridiba) coromandeliana (Blanchard, 1851) [ACCEPTED SPECIES 9817:7ZPVS nidx=null]
 + Miridiba (Miridiba) coromandeliana (Blanchard, 1850) [ACCEPTED SPECIES 9820:8YX69 nidx=null]
Modiola nebulosa
 - Modiola nebulosa Tenison Woods, 1876 [SYNONYM SPECIES 9817:43TJJ nidx=null parent=5CBRG]
 + Modiola nebulosa Tenison Woods, 1877 [SYNONYM SPECIES 9820:8YXXG nidx=null parent=5CBRG]
Monodacna (Pseudocatillus) pseudocatillus
 - Monodacna (Pseudocatillus) pseudocatillus (Barbot de Marny, 1869) [SYNONYM SPECIES 9817:877WW nidx=null parent=7STVQ]
 + Monodacna (Pseudocatillus) pseudocatillus (Abich, 1869) [SYNONYM SPECIES 9820:8Z6R2 nidx=null parent=8Z74K]
Monodontocerus modificatus satsumensis
 - Monodontocerus modificatus satsumensis Yosii, R, 1967 [SYNONYM SUBSPECIES 9817:5JR4V nidx=null parent=446VN]
 + Monodontocerus modificatus satsumensis Yosii, R, 1956 [SYNONYM SUBSPECIES 9820:8Z7V9 nidx=null parent=446VN]
Monopelopia okigenga
 - Monopelopia okigenga Sasa, 1991 [ACCEPTED SPECIES 9817:448GX nidx=null]
 + Monopelopia okigenga Sasa, 1990 [SYNONYM SPECIES 9820:8YTSP nidx=null parent=4D339]
Monopelopia tenuicalcar
 - Monopelopia tenuicalcar (Kieffer, 1915) [ACCEPTED SPECIES 9817:448GZ nidx=null]
 + Monopelopia tenuicalcar (Kieffer, 1918) [ACCEPTED SPECIES 9820:8YTSR nidx=null]
Mormia (Mormia) curvistylis
 - Mormia (Mormia) curvistylis (Krek, 1970) [ACCEPTED SPECIES 9817:8CWKJ nidx=null]
 + Mormia (Mormia) curvistylis (Krek, 1971) [ACCEPTED SPECIES 9820:8YTSY nidx=null]
Musca navus
 - Musca navus Harris, 1780 [SYNONYM SPECIES 9817:89HC7 nidx=null parent=8DDWP]
 + Musca navus Harris, 1780 [SYNONYM SPECIES 9820:44PH2 nidx=null parent=4JPGM]
Musca sorbens
 - Musca sorbens Salem & EL-Sherif, 1960 [ACCEPTED SPECIES 9817:89HDM nidx=null]
 + Musca sorbens Wiedemann, 1830 [SYNONYM SPECIES 9820:44PPQ nidx=null parent=8CWPS]
Musca timeo
 - Musca timeo Harris, 1780 [SYNONYM SPECIES 9817:89HF3 nidx=null parent=8DDXX]
 + Musca timeo Harris, 1780 [SYNONYM SPECIES 9820:44PRK nidx=null parent=4JPJL]
Musca xanthomelas
 - Musca xanthomelas Wiedemann, 1830 [ACCEPTED SPECIES 9817:44PTS nidx=null]
 + Musca xanthomelas Wiedemann, 1824 [SYNONYM SPECIES 9820:8YTTL nidx=null parent=8CWQR]
Mycetophila confusa
 - Mycetophila confusa Théobald, 1937 [PROVISIONALLY_ACCEPTED SPECIES 9817:89HHV nidx=null]
 + Mycetophila confusa Lane, 1948 [AMBIGUOUS_SYNONYM SPECIES 9820:8YV4F nidx=null parent=8CXCN]
Mycetophila fallax
 - Mycetophila fallax Keilbach, 1982 [ACCEPTED SPECIES 9817:88QHV nidx=null]
 + Mycetophila fallax Loew, 1870 [SYNONYM SPECIES 9820:44V39 nidx=null parent=7446T]
Mycetophila grata
 - Mycetophila grata Wu & He, 1998 [ACCEPTED SPECIES 9817:44V5G nidx=null]
 + Mycetophila grata Meigen, 1830 [SYNONYM SPECIES 9820:8YV4K nidx=null parent=89X63]
Mycetophila intersecta
 - Mycetophila intersecta Meigen, 1818 [SYNONYM SPECIES 9817:8CXH3 nidx=null parent=8C4XL]
 + Mycetophila intersecta Wiedemann, 1818 [SYNONYM SPECIES 9820:8YV4L nidx=null parent=8YT2N]
Mycetophila longicornis
 - Mycetophila longicornis Keilbach, 1982 [ACCEPTED SPECIES 9817:89HKH nidx=null]
 + Mycetophila longicornis Walker, 1856 [SYNONYM SPECIES 9820:44V8M nidx=null parent=89X5B]
Mycetophila pusilla
 - Mycetophila pusilla Keilbach, 1982 [ACCEPTED SPECIES 9817:89HM3 nidx=null]
 + Mycetophila pusilla Meigen, 1830 [SYNONYM SPECIES 9820:44VGB nidx=null parent=5DBB5]
Mycetophila sordida
 - Mycetophila sordida Wulp, 1874 [ACCEPTED SPECIES 9817:44VJK nidx=null]
 + Mycetophila sordida Wulp, 1875 [ACCEPTED SPECIES 9820:8YV4T nidx=null]
Mycetophila subfasciata
 - Mycetophila subfasciata Meigen [ACCEPTED SPECIES 9817:89HML nidx=null]
 + Mycetophila subfasciata Freeman, 1951 [AMBIGUOUS_SYNONYM SPECIES 9820:44VKD nidx=null parent=8CXF3]
 + Mycetophila subfasciata Wiedemann, 1818 [AMBIGUOUS_SYNONYM SPECIES 9820:8YV4V nidx=null parent=8YTCQ]
Mycetophila unipunctata
 - Mycetophila unipunctata Meigen, 1818 [ACCEPTED SPECIES 9817:44VMW nidx=null]
 + Mycetophila unipunctata Wiedemann, 1818 [ACCEPTED SPECIES 9820:8YV4W nidx=null]
Mycomya fusca
 - Mycomya fusca (Meigen, 1818) [ACCEPTED SPECIES 9817:44X3L nidx=null]
 + Mycomya fusca (Wiedemann, 1818) [ACCEPTED SPECIES 9820:8YV52 nidx=null]
Mydas clavatus
 - Mydas clavatus (Drury, 1773) [ACCEPTED SPECIES 9817:4526F nidx=null]
 - Mydas clavatus De Geer, 1776 [PROVISIONALLY_ACCEPTED SPECIES 9817:88QNH nidx=null]
 + Mydas clavatus (Drury, 1773) [ACCEPTED SPECIES 9820:8YV58 nidx=null]
Myopa occulta
 - Myopa occulta Wiedemann, 1824 [ACCEPTED SPECIES 9817:4553S nidx=null]
 + Myopa occulta Meigen, 1824 [ACCEPTED SPECIES 9820:8YV5Q nidx=null]
Myopa pusilla
 - Myopa pusilla Meigen, 1824 [SYNONYM SPECIES 9817:73RQN nidx=null parent=5674V]
 + Myopa pusilla Wiedemann, 1824 [SYNONYM SPECIES 9820:8YV5R nidx=null parent=5674V]
Myophoria (Costatoria) submultistriata
 - Myophoria (Costatoria) submultistriata C.-Z. Chen, 1976 [SYNONYM SPECIES 9817:6RRQK nidx=null parent=YWGB]
 + Myophoria (Costatoria) submultistriata (C.-Z. Chen, Q.-H. Ma & Z.-M. Zhang, 1974) [SYNONYM SPECIES 9820:8YY35 nidx=null parent=8YWQZ]
Myothyria majorina
 - Myothyria majorina Wulp, 1891 [SYNONYM SPECIES 9817:8CY8X nidx=null parent=SFZ8]
 + Myothyria majorina Wulp, 1890 [SYNONYM SPECIES 9820:8YV6L nidx=null parent=8YRX2]
Myrina
 - Myrina Redtenbacher, 1867 [SYNONYM GENUS 9817:5WJ3 nidx=null parent=SFJ]
 + Myrina Redtenbacher, 1868 [SYNONYM GENUS 9820:8YRQD nidx=null parent=SFJ]
Myrina pfeifferi
 - Myrina pfeifferi Redtenbacher, 1867 [SYNONYM SPECIES 9817:458KH nidx=null parent=BXKL]
 + Myrina pfeifferi Redtenbacher, 1868 [SYNONYM SPECIES 9820:8YX6B nidx=null parent=8YT8B]
Nautiliropa omicron
 - Nautiliropa omicron (Pfeiffer, 1851) [ACCEPTED SPECIES 9817:45VHS nidx=null]
 + Nautiliropa omicron (L. Pfeiffer, 1852) [ACCEPTED SPECIES 9820:8YY3P nidx=null]
Navicula reinhardtii var. reinhardtii
 - Navicula reinhardtii var. reinhardtii [ACCEPTED VARIETY 9817:5Q9GR nidx=null]
 + Navicula reinhardtii var. reinhardtii [ACCEPTED VARIETY 9820:8YZTY nidx=null]
Neanura tigrina
 - Neanura tigrina [PROVISIONALLY_ACCEPTED SPECIES 9817:45Y9S nidx=null]
 + Neanura tigrina Massoud, Z, 1967 [SYNONYM SPECIES 9820:8Z6RF nidx=null parent=3NVZG]
Neanurini
 - Neanurini Becker, E, 1905 [SYNONYM SUBFAMILY 9817:JYF nidx=null parent=K7X]
 + Neanurini Börner, 1901 [ACCEPTED TRIBE 9820:8Z24T nidx=null]
Nemkovella evae subsp. reinechensis
 - Nemkovella evae subsp. reinechensis Özcan, Ismail-Lattrache & Boukhalfa, 2013 [ACCEPTED SUBSPECIES 9817:83XTQ nidx=null]
 + Nemkovella evae subsp. reinechensis Özcan, Ismail-Lattrache & Boukhalfa, 2014 [ACCEPTED SUBSPECIES 9820:8YZP7 nidx=null]
Nemoron nomas
 - Nemoron nomas P.K.L. Ng, 1996 [ACCEPTED SPECIES 9817:4696P nidx=null]
 + Nemoron nomas PKL Ng, 1996 [ACCEPTED SPECIES 9820:8YY3Y nidx=null]
Nemotelus frontalis
 - Nemotelus frontalis Olivier, 1811 [SYNONYM SPECIES 9817:89JQ4 nidx=null parent=8CYVS]
 + Nemotelus frontalis Oliver [ACCEPTED SPECIES 9820:469BW nidx=null]
Nemotelus leucorhynchus
 - Nemotelus leucorhynchus Costa, 1884 [SYNONYM SPECIES 9817:89JR6 nidx=null parent=8CYVT]
 + Nemotelus leucorhynchus Costa, 1884 [ACCEPTED SPECIES 9820:469DB nidx=null]
Nemotelus niloticus
 - Nemotelus niloticus Olivier, 1811 [SYNONYM SPECIES 9817:89JRY nidx=null parent=8CYVV]
 + Nemotelus niloticus Olivier, 1811 [ACCEPTED SPECIES 9820:6RV6G nidx=null]
Nemotelus paludosus
 - Nemotelus paludosus Meigen, 1830 [SYNONYM SPECIES 9817:89JS6 nidx=null parent=8CYVW]
 + Nemotelus paludosus Meigen, 1830 [ACCEPTED SPECIES 9820:7476F nidx=null]
Nemotelus stellaris
 - Nemotelus stellaris Geoffroy, 1785 [SYNONYM SPECIES 9817:89JT7 nidx=null parent=8CYVX]
 + Nemotelus stellaris Geoffroy, 1785 [ACCEPTED SPECIES 9820:469GQ nidx=null]
Nemotelus ventralis
 - Nemotelus ventralis Meigen, 1830 [SYNONYM SPECIES 9817:89JTM nidx=null parent=88RGT]
 + Nemotelus ventralis Meigen, 1830 [ACCEPTED SPECIES 9820:469HJ nidx=null]
Neoascarophis sphaerocaudata
 - Neoascarophis sphaerocaudata Rossin, Incorvaia & Timi, 2011 [ACCEPTED SPECIES 9817:8GDN6 nidx=null]
 + Neoascarophis sphaerocaudata Rossin, Incorvaia & Timi, 2012 [ACCEPTED SPECIES 9820:8YY3Z nidx=null]
Neoceroplatus lauroi
 - Neoceroplatus lauroi Lane, 1961 [SYNONYM SPECIES 9817:89JYG nidx=null parent=8CYXW]
 + Neoceroplatus lauroi (Lane, 1961) [ACCEPTED SPECIES 9820:46CKJ nidx=null]
Neoceroplatus minimax
 - Neoceroplatus minimax Edwards, 1934 [SYNONYM SPECIES 9817:89JYH nidx=null parent=8CYXT]
 + Neoceroplatus minimax (Edwards, 1934) [ACCEPTED SPECIES 9820:46CKK nidx=null]
Neoceroplatus paicoenai
 - Neoceroplatus paicoenai Lane, 1950 [SYNONYM SPECIES 9817:89JYJ nidx=null parent=8CYXV]
 + Neoceroplatus paicoenai (Lane, 1950) [ACCEPTED SPECIES 9820:46CKM nidx=null]
Neochirosia pechorica
 - Neochirosia pechorica Ozerov, 2009 [ACCEPTED SPECIES 9817:8CYY2 nidx=null]
 + Neochirosia pechorica Ozerov, 2010 [ACCEPTED SPECIES 9820:8YV78 nidx=null]
Neodartus vinulus
 - Neodartus vinulus (Stål, 1855) [ACCEPTED SPECIES 9817:46FRW nidx=null]
 + Neodartus vinulus (Stål, 1855) [AMBIGUOUS_SYNONYM SPECIES 9820:8YZCW nidx=null parent=8K2T9]
 + Neodartus vinulus (Stål, 1855) [ACCEPTED SPECIES 9820:8YZCX nidx=null]
Neoditomyia aerospicator
 - Neoditomyia aerospicator Jackson, 1974 [SYNONYM SPECIES 9817:89K2P nidx=null parent=8CZ2R]
 + Neoditomyia aerospicator Jackson, 1974 [ACCEPTED SPECIES 9820:46G9H nidx=null]
Neoechinorhynchus
 - Neoechinorhynchus Hamann, 1892 [ACCEPTED SUBGENUS 9817:8VZN3 nidx=null]
 + Neoechinorhynchus Hamann, 1892 [ACCEPTED SUBGENUS 9820:7PLXH nidx=null]
Neohaplegis
 - Neohaplegis [ACCEPTED SUBGENUS 9817:8V4S7 nidx=null]
 - Neohaplegis [ACCEPTED SUBGENUS 9817:8VVKT nidx=null]
 + Neohaplegis [ACCEPTED GENUS 9820:8YQTK nidx=null]
Neoitamus tabidus
 - Neoitamus tabidus (Meigen, 1820) [ACCEPTED SPECIES 9817:46JSC nidx=null]
 + Neoitamus tabidus (Wiedemann, 1820) [ACCEPTED SPECIES 9820:8YV7H nidx=null]
Neoliomera cerasinus
 - Neoliomera cerasinus P.K.L. Ng, 2002 [ACCEPTED SPECIES 9817:46L22 nidx=null]
 + Neoliomera cerasinus PKL Ng, 2002 [ACCEPTED SPECIES 9820:8YY47 nidx=null]
Neotropiella denisi
 - Neotropiella denisi (Arlé, 1939) [ACCEPTED SPECIES 9817:749GM nidx=null]
 + Neotropiella denisi Arlé, 1981 [SYNONYM SPECIES 9820:8Z6RH nidx=null parent=648GC]
Nereis alacris
 - Nereis alacris Verrill, 1880 [SYNONYM SPECIES 9817:474GM nidx=null parent=4JT63]
 + Nereis alacris Verrill, 1879 [SYNONYM SPECIES 9820:8YWWH nidx=null parent=4JT63]
Nereis noctiluca
 - Nereis noctiluca Linnaeus, 1761 [ACCEPTED SPECIES 9817:474RC nidx=null]
 + Nereis noctiluca Linnaeus, 1758 [SYNONYM SPECIES 9820:8YWWJ nidx=null parent=48RQ8]
Norellisoma lituratum
 - Norellisoma lituratum (Wiedemann, 1826) [ACCEPTED SPECIES 9817:6RZYF nidx=null]
 + Norellisoma lituratum (Meigen, 1826) [ACCEPTED SPECIES 9820:8YV8B nidx=null]
Notomastus gracilis
 - Notomastus gracilis Verrill, 1880 [SYNONYM SPECIES 9817:47WRD nidx=null parent=QQDS]
 + Notomastus gracilis Verrill, 1879 [SYNONYM SPECIES 9820:8YWWN nidx=null parent=8YVQ9]
Nowickia (Fabriciella) pamirica
 - Nowickia (Fabriciella) pamirica (Enderlein, 1934) [ACCEPTED SPECIES 9817:8W6PY nidx=null]
 + Nowickia (Fabriciella) pamirica (Enderlein, 1933) [ACCEPTED SPECIES 9820:8YV8V nidx=null]
Nymphon tenuimanum
 - Nymphon tenuimanum Hodgson, 1915 [ACCEPTED SPECIES 9817:4873B nidx=null]
 + Nymphon tenuimanum Hodgson, 1914 [ACCEPTED SPECIES 9820:8YY57 nidx=null]
Nymphon unguiculatum
 - Nymphon unguiculatum Hodgson, 1915 [ACCEPTED SPECIES 9817:4873S nidx=null]
 + Nymphon unguiculatum Hodgson, 1914 [ACCEPTED SPECIES 9820:8YY58 nidx=null]
Ochromusca trifaria
 - Ochromusca trifaria (Bigot, 1875) [ACCEPTED SPECIES 9817:6SF68 nidx=null]
 + Ochromusca trifaria (Bigot, 1878) [ACCEPTED SPECIES 9820:8YV8W nidx=null]
Ochtheroidea granulosa
 - Ochtheroidea granulosa Cresson, 1922 [SYNONYM SPECIES 9817:88SGF nidx=null parent=8B55Y]
 + Ochtheroidea granulosa Cresson, 1923 [SYNONYM SPECIES 9820:8YV8Y nidx=null parent=8YRBK]
Ochtheroidea melanderi
 - Ochtheroidea melanderi Cresson, 1922 [SYNONYM SPECIES 9817:88SGH nidx=null parent=JGBR]
 + Ochtheroidea melanderi Cresson, 1923 [SYNONYM SPECIES 9820:8YV8Z nidx=null parent=8YRBL]
Ocyptamus fascipennis
 - Ocyptamus fascipennis Wiedemann [ACCEPTED SPECIES 9817:48LZX nidx=null]
 + Ocyptamus fascipennis Macquart, 1834 [SYNONYM SPECIES 9820:48LZY nidx=null parent=48M2H]
Ocyptamus octomaculatus
 - Ocyptamus octomaculatus Hull, 1943 [ACCEPTED SPECIES 9817:89L95 nidx=null]
 + Ocyptamus octomaculatus Thompson, 1976 [SYNONYM SPECIES 9820:48M52 nidx=null parent=8D2G3]
Ocyptera simplex
 - Ocyptera simplex Fallén [ACCEPTED SPECIES 9817:88SK7 nidx=null]
 + Ocyptera simplex Bigot, 1878 [SYNONYM SPECIES 9820:8YV96 nidx=null parent=333NL]
Odinia trinotata
 - Odinia trinotata Robineau-Desvoidy [ACCEPTED SPECIES 9817:89LCP nidx=null]
 + Odinia trinotata Robineau-Desvoidy, 1830 [SYNONYM SPECIES 9820:48N4G nidx=null parent=6SHL5]
Odontomyia limbata
 - Odontomyia limbata Meigen [PROVISIONALLY_ACCEPTED SPECIES 9817:88SLZ nidx=null]
 + Odontomyia limbata Macquart, 1849 [AMBIGUOUS_SYNONYM SPECIES 9820:48QNX nidx=null parent=48QL8]
Oestrus rufibarbis
 - Oestrus rufibarbis Meigen, 1824 [SYNONYM SPECIES 9817:48YL6 nidx=null parent=SF49]
 + Oestrus rufibarbis Wiedemann, 1824 [SYNONYM SPECIES 9820:8YV9Q nidx=null parent=SF49]
Oestrus salutaris
 - Oestrus salutaris Clark, 1816 [SYNONYM SPECIES 9817:48YL7 nidx=null parent=3FCKG]
 + Oestrus salutaris Clark, 1815 [SYNONYM SPECIES 9820:8YV9R nidx=null parent=3FCKC]
Oistotrigonia lamarckii
 - Oistotrigonia lamarckii (Matheron, 1842) [ACCEPTED SPECIES 9817:4923M nidx=null]
 + Oistotrigonia lamarckii (Matheron, 1843) [ACCEPTED SPECIES 9820:8YY5R nidx=null]
Olenothus uogi
 - Olenothus uogi P.K.L. Ng, 2002 [ACCEPTED SPECIES 9817:6SJ7Q nidx=null]
 + Olenothus uogi PKL Ng, 2002 [ACCEPTED SPECIES 9820:8YY5T nidx=null]
Olfersia coriacea
 - Olfersia coriacea Wulp [ACCEPTED SPECIES 9817:89LQ5 nidx=null]
 + Olfersia coriacea Wulp, 1903 [SYNONYM SPECIES 9820:494QG nidx=null parent=3WSDL]
Ommatius apicalis
 - Ommatius apicalis (Bellardi, 1861) [ACCEPTED SPECIES 9817:49CBX nidx=null]
 + Ommatius apicalis Schiner, 1868 [SYNONYM SPECIES 9820:49CBY nidx=null parent=49CLQ]
Ommatius flavipes
 - Ommatius flavipes Loew [PROVISIONALLY_ACCEPTED SPECIES 9817:89LVB nidx=null]
 + Ommatius flavipes Macquart [PROVISIONALLY_ACCEPTED SPECIES 9820:8YV9V nidx=null]
Oncopodura rosetta
 - Oncopodura rosetta Winter, 1963 [ACCEPTED SPECIES 9817:49JB3 nidx=null]
 + Oncopodura rosetta [ACCEPTED SPECIES 9820:8Z6S5 nidx=null]
Onesia floralis
 - Onesia floralis Robineau-Desvoidy [ACCEPTED SPECIES 9817:89LXL nidx=null]
 + Onesia floralis Robineau-Desvoidy, 1830 [SYNONYM SPECIES 9820:49JXR nidx=null parent=8D3JN]
Onthophagus reflexicornis
 - Onthophagus reflexicornis Redtenbacher, 1867 [SYNONYM SPECIES 9817:7XNVL nidx=null parent=7XP8F]
 + Onthophagus reflexicornis Redtenbacher, 1868 [SYNONYM SPECIES 9820:8YX6P nidx=null parent=7XP8F]
Onychiurus fimentarius
 - Onychiurus fimentarius Yayuk, 1989 [SYNONYM SPECIES 9817:49QTK nidx=null parent=3557F]
 + Onychiurus fimentarius Imms, AD, 1939 [SYNONYM SPECIES 9820:8Z6SC nidx=null parent=3557F]
 + Onychiurus fimentarius Axelson, 1919 [SYNONYM SPECIES 9820:8Z6SD nidx=null parent=3557F]
 + Onychiurus fimentarius Wahlgren, 1919 [SYNONYM SPECIES 9820:8Z6SF nidx=null parent=3557F]
 + Onychiurus fimentarius Wahlgren, 1906 [SYNONYM SPECIES 9820:8Z6SG nidx=null parent=3557F]
 + Onychiurus fimentarius Brown, 1919 [SYNONYM SPECIES 9820:8Z6SJ nidx=null parent=3557F]
Onychiurus flavescens
 - Onychiurus flavescens Bagnall, 1935 [SYNONYM SPECIES 9817:49QTX nidx=null parent=4N285]
 + Onychiurus flavescens Salmon, 1959 [AMBIGUOUS_SYNONYM SPECIES 9820:8YZGB nidx=null parent=4N27W]
Onychiurus gisini
 - Onychiurus gisini da Gama, 1964 [SYNONYM SPECIES 9817:74LXH nidx=null parent=4N285]
 + Onychiurus gisini da Gama, 1984 [AMBIGUOUS_SYNONYM SPECIES 9820:8Z6SR nidx=null parent=6VYPQ]
 + Onychiurus gisini Arbea, JI & Jordana, R, 1991 [AMBIGUOUS_SYNONYM SPECIES 9820:8Z6SS nidx=null parent=4N285]
 + Onychiurus gisini Ellis, WN, 1976 [AMBIGUOUS_SYNONYM SPECIES 9820:8Z6ST nidx=null parent=4N285]
Onychiurus handschini
 - Onychiurus handschini Bonet, 1931 [SYNONYM SPECIES 9817:6SLXF nidx=null parent=3556F]
 + Onychiurus handschini Denis, J-R, 1924 [SYNONYM SPECIES 9820:8YZGG nidx=null parent=35578]
Onychiurus imminutus
 - Onychiurus imminutus Bagnall, 1937 [SYNONYM SPECIES 9817:6SM9D nidx=null parent=7C5GT]
 + Onychiurus imminutus Sun, X, Bedos, A & Deharveng, L, 2018 [SYNONYM SPECIES 9820:8Z5LW nidx=null parent=7BTH9]
 + Onychiurus imminutus Salmon, JT, 1959 [SYNONYM SPECIES 9820:8Z5LX nidx=null parent=7BTH9]
 + Onychiurus imminutus Salmon, JT, 1964 [SYNONYM SPECIES 9820:8Z5LY nidx=null parent=7BTH9]
Onychiurus litoreus
 - Onychiurus litoreus Folsom, 1917 [SYNONYM SPECIES 9817:49QV8 nidx=null parent=7C5GT]
 + Onychiurus litoreus Salmon, 1959 [SYNONYM SPECIES 9820:8YZGH nidx=null parent=7C5GT]
 + Onychiurus litoreus Jordana et al., 1997 [SYNONYM SPECIES 9820:8YZGJ nidx=null parent=7C5GT]
 + Onychiurus litoreus Bagnall, 1935 [SYNONYM SPECIES 9820:8YZGK nidx=null parent=7C5GT]
 + Onychiurus litoreus Denis, 1923 [SYNONYM SPECIES 9820:8YZGL nidx=null parent=7C5GT]
 + Onychiurus litoreus Salmon, JT, 1964 [SYNONYM SPECIES 9820:8YZGM nidx=null parent=7C5GT]
 + Onychiurus litoreus Palissa, 1964 [SYNONYM SPECIES 9820:8YZGN nidx=null parent=7C5GT]
 + Onychiurus litoreus Bagnall, 1937 [SYNONYM SPECIES 9820:8YZGP nidx=null parent=7C5GT]
 + Onychiurus litoreus Sun, X, Bedos, A & Deharveng, L, 2018 [SYNONYM SPECIES 9820:8YZGQ nidx=null parent=7C5GT]
Onychiurus littoralis
 - Onychiurus littoralis Bagnall, 1935 [AMBIGUOUS_SYNONYM SPECIES 9817:49QV9 nidx=null parent=7BTGP]
 + Onychiurus littoralis Remane & Schutz, 1934 [AMBIGUOUS_SYNONYM SPECIES 9820:8Z5LZ nidx=null parent=8ZNHW]
 + Onychiurus littoralis Gisin, H, 1960 [AMBIGUOUS_SYNONYM SPECIES 9820:8Z5M2 nidx=null parent=7C5GT]
 + Onychiurus littoralis Gisin, 1944 [AMBIGUOUS_SYNONYM SPECIES 9820:8Z5M3 nidx=null parent=7C5GT]
 + Onychiurus littoralis Salmon, JT, 1964 [AMBIGUOUS_SYNONYM SPECIES 9820:8Z5M4 nidx=null parent=7C5GT]
 + Onychiurus littoralis Strenzke, 1954 [AMBIGUOUS_SYNONYM SPECIES 9820:8Z5M5 nidx=null parent=7C5GT]
 + Onychiurus littoralis Strenzke, 1955 [AMBIGUOUS_SYNONYM SPECIES 9820:8Z5M6 nidx=null parent=7C5GT]
 + Onychiurus littoralis Palissa, 1964 [AMBIGUOUS_SYNONYM SPECIES 9820:8Z5M7 nidx=null parent=7C5GT]
 + Onychiurus littoralis Bagnall, 1937 [AMBIGUOUS_SYNONYM SPECIES 9820:8Z5M8 nidx=null parent=7C5GT]
 + Onychiurus littoralis Szeptycki, 1962 [AMBIGUOUS_SYNONYM SPECIES 9820:8Z5M9 nidx=null parent=7C5GT]
 + Onychiurus littoralis Delamare, 1960 [AMBIGUOUS_SYNONYM SPECIES 9820:8Z5MB nidx=null parent=7C5GT]
 + Onychiurus littoralis Strenzke, 1951 [AMBIGUOUS_SYNONYM SPECIES 9820:8Z5MC nidx=null parent=7C5GT]
 + Onychiurus littoralis Sun, X, Bedos, A & Deharveng, L, 2018 [AMBIGUOUS_SYNONYM SPECIES 9820:8Z5MD nidx=null parent=7C5GT]
Onychiurus pseudogranulosus
 - Onychiurus pseudogranulosus Delamare Deboutteville & Gisin, 1951 [SYNONYM SPECIES 9817:49QWT nidx=null parent=49QRB]
 + Onychiurus pseudogranulosus Stach, J, 1954 [SYNONYM SPECIES 9820:8Z5MF nidx=null parent=49QRB]
Onychiurus quadrituberculata
 - Onychiurus quadrituberculata Frenzel, 1937 ISS Syn.: Onychiurus quadrioculatus Bagnall, 1949 [SYNONYM SPECIES 9817:49QX2 nidx=null parent=495M5]
 + Onychiurus quadrituberculata Frenzel, 1937 [SYNONYM SPECIES 9820:8Z6T7 nidx=null parent=495M5]
Onychiurus stachi
 - Onychiurus stachi Denis, 1938 [AMBIGUOUS_SYNONYM SPECIES 9817:49QXQ nidx=null parent=74WQ2]
 + Onychiurus stachi Bagnall, 1935 [SYNONYM SPECIES 9820:8Z6TL nidx=null parent=63PH3]
Onychiurus zschokkei
 - Onychiurus zschokkei Handschin, 1919, partim Handschin, 1924 [SYNONYM SPECIES 9817:49QZ5 nidx=null parent=55ZC6]
 + Onychiurus zschokkei Handschin, 1926 [SYNONYM SPECIES 9820:8Z5ML nidx=null parent=55ZC6]
Onychostoma angustistomata
 - Onychostoma angustistomata (Fang, 1940) [ACCEPTED SPECIES 9817:49RGY nidx=null]
 + Onychostoma angustistomata (Fang, 1940) [ACCEPTED SPECIES 9820:8YY65 nidx=null]
Ophiomyia subdefinita
 - Ophiomyia subdefinita Spencer, 1981 [ACCEPTED SPECIES 9817:49YD7 nidx=null]
 + Ophiomyia subdefinita Spencer, 1986 [ACCEPTED SPECIES 9820:8YVB3 nidx=null]
Ophiosabine aristata
 - Ophiosabine aristata (Koehler, 1896) [ACCEPTED SPECIES 9817:8VSNQ nidx=null]
 + Ophiosabine aristata (Koehler, 1895) [ACCEPTED SPECIES 9820:8YPYW nidx=null]
Opsius stactogalus
 - Opsius stactogalus Fieber, 1866 [ACCEPTED SPECIES 9817:74S9R nidx=null]
 + Opsius stactogalus Fieber, 1866 [ACCEPTED SPECIES 9820:8YZH4 nidx=null]
Orchesella fastuosa
 - Orchesella fastuosa mauritanica Lucas, H, 1849 [SYNONYM SPECIES 9817:754TZ nidx=null parent=6T5DQ]
 + Orchesella fastuosa Kolenati, FA, 1858 [SYNONYM SPECIES 9820:8Z5MR nidx=null parent=6T5DQ]
Orchesella litoralis
 - Orchesella litoralis Brown, 1925 [AMBIGUOUS_SYNONYM SPECIES 9817:754TW nidx=null parent=755DY]
 + Orchesella litoralis Bull, 1966 [SYNONYM SPECIES 9820:8Z5MX nidx=null parent=6SSTP]
 + Orchesella litoralis Stach, J, 1960 [SYNONYM SPECIES 9820:8Z5MY nidx=null parent=755DY]
 + Orchesella litoralis Goto, HE & Lawrence, PN in Kloet, GS & Hincks, WD, 1964 [SYNONYM SPECIES 9820:8Z5MZ nidx=null parent=6SSTP]
 + Orchesella litoralis Gisin, H, 1960 [SYNONYM SPECIES 9820:8Z5N2 nidx=null parent=6SSTP]
 + Orchesella litoralis Hopkin, 2000 [SYNONYM SPECIES 9820:8Z5N3 nidx=null parent=6SSTP]
 + Orchesella litoralis Palissa, 1964 [SYNONYM SPECIES 9820:8Z5N4 nidx=null parent=6SSTP]
Orchesella multifasciata
 - Orchesella multifasciata Ionesco, 1915 [AMBIGUOUS_SYNONYM SPECIES 9817:6ST65 nidx=null parent=6SSTP]
 + Orchesella multifasciata Scherbakov, 1898 [AMBIGUOUS_SYNONYM SPECIES 9820:8Z6TV nidx=null parent=6SSTP]
Orchesella sylvatica
 - Orchesella sylvatica Ionesco, 1915 [SYNONYM SPECIES 9817:6T563 nidx=null parent=755DW]
 + Orchesella sylvatica Kolenati, FA, 1858 [AMBIGUOUS_SYNONYM SPECIES 9820:8Z5N9 nidx=null parent=6T5DQ]
 + Orchesella sylvatica Bourlet, C, 1845 [AMBIGUOUS_SYNONYM SPECIES 9820:8Z5NB nidx=null parent=6ST5Y]
Orchesellidae
 - Orchesellidae [ACCEPTED FAMILY 9817:DPK nidx=null]
 + Orchesellidae Börner C, 1906 [ACCEPTED FAMILY 9820:8Z22W nidx=null]
Orfelia abbrevinervis
 - Orfelia abbrevinervis Edwards, 1941 [SYNONYM SPECIES 9817:89M4F nidx=null parent=8D3RW]
 + Orfelia abbrevinervis Edwards, 1941 [ACCEPTED SPECIES 9820:6T636 nidx=null]
Orfelia aczeli
 - Orfelia aczeli Lane, 1958 [SYNONYM SPECIES 9817:89M4G nidx=null parent=8D3RX]
 + Orfelia aczeli Lane, 1958 [ACCEPTED SPECIES 9820:74TR6 nidx=null]
Orfelia alticola
 - Orfelia alticola Lane, 1948 [SYNONYM SPECIES 9817:89M4H nidx=null parent=8D3RY]
 + Orfelia alticola Lane, 1948 [ACCEPTED SPECIES 9820:6STQT nidx=null]
Orfelia amapaensis
 - Orfelia amapaensis Lane, 1959 [SYNONYM SPECIES 9817:89M4J nidx=null parent=8D3RZ]
 + Orfelia amapaensis Lane, 1959 [ACCEPTED SPECIES 9820:6STR5 nidx=null]
Orfelia amazonensis
 - Orfelia amazonensis Lane, 1958 [SYNONYM SPECIES 9817:89M4K nidx=null parent=8D3S2]
 + Orfelia amazonensis Lane, 1958 [ACCEPTED SPECIES 9820:6T5R5 nidx=null]
Orfelia anomala
 - Orfelia anomala Lane, 1960 [SYNONYM SPECIES 9817:89M4L nidx=null parent=8D3S4]
 + Orfelia anomala Lane, 1960 [ACCEPTED SPECIES 9820:74TR5 nidx=null]
Orfelia bicelli
 - Orfelia bicelli Lane, 1961 [SYNONYM SPECIES 9817:89M4N nidx=null parent=8D3S5]
 + Orfelia bicelli Lane, 1961 [ACCEPTED SPECIES 9820:6STR4 nidx=null]
Orfelia biguttata
 - Orfelia biguttata Freeman, 1951 [SYNONYM SPECIES 9817:89M4P nidx=null parent=8D3S6]
 + Orfelia biguttata Freeman, 1951 [ACCEPTED SPECIES 9820:6T5R4 nidx=null]
Orfelia burmeisteri
 - Orfelia burmeisteri Edwards, 1934 [SYNONYM SPECIES 9817:89M4Q nidx=null parent=8D3S7]
 + Orfelia burmeisteri Edwards, 1934 [ACCEPTED SPECIES 9820:6T62S nidx=null]
Orfelia chacoensis
 - Orfelia chacoensis Edwards, 1931 [SYNONYM SPECIES 9817:89M4R nidx=null parent=8D3S8]
 + Orfelia chacoensis Edwards, 1931 [ACCEPTED SPECIES 9820:6T634 nidx=null]
Orfelia chilensis
 - Orfelia chilensis Freeman, 1951 [SYNONYM SPECIES 9817:89M4S nidx=null parent=8D3S9]
 + Orfelia chilensis Freeman, 1951 [ACCEPTED SPECIES 9820:74TQS nidx=null]
Orfelia coheri
 - Orfelia coheri Lane, 1950 [SYNONYM SPECIES 9817:89M4T nidx=null parent=8D3SB]
 + Orfelia coheri Lane, 1950 [ACCEPTED SPECIES 9820:74TR4 nidx=null]
Orfelia consimilis
 - Orfelia consimilis Freeman, 1951 [SYNONYM SPECIES 9817:89M4V nidx=null parent=8D3SC]
 + Orfelia consimilis Freeman, 1951 [ACCEPTED SPECIES 9820:755R4 nidx=null]
Orfelia defecta
 - Orfelia defecta Edwards, 1931 [SYNONYM SPECIES 9817:89M4W nidx=null parent=8D3SD]
 + Orfelia defecta Edwards, 1931 [ACCEPTED SPECIES 9820:6T5R3 nidx=null]
Orfelia delpontei
 - Orfelia delpontei Lane, 1963 [SYNONYM SPECIES 9817:89M4X nidx=null parent=8D3SG]
 + Orfelia delpontei Lane, 1963 [ACCEPTED SPECIES 9820:6STQR nidx=null]
Orfelia ferruginea
 - Orfelia ferruginea Freeman, 1951 [SYNONYM SPECIES 9817:89M4Z nidx=null parent=8D3SH]
 + Orfelia ferruginea Freeman, 1951 [ACCEPTED SPECIES 9820:6T5QQ nidx=null]
Orfelia ignobilis
 - Orfelia ignobilis Williston, 1896 [SYNONYM SPECIES 9817:89M52 nidx=null parent=8D3SJ]
 + Orfelia ignobilis Williston, 1896 [ACCEPTED SPECIES 9820:74TR2 nidx=null]
Orfelia incasica
 - Orfelia incasica Lane, 1950 [SYNONYM SPECIES 9817:89M53 nidx=null parent=8D3SL]
 + Orfelia incasica Lane, 1950 [ACCEPTED SPECIES 9820:755QQ nidx=null]
Orfelia infumata
 - Orfelia infumata Freeman, 1951 [SYNONYM SPECIES 9817:89M54 nidx=null parent=8D3SM]
 + Orfelia infumata Freeman, 1951 [ACCEPTED SPECIES 9820:7562Q nidx=null]
Orfelia knabi
 - Orfelia knabi Lane, 1950 [SYNONYM SPECIES 9817:89M55 nidx=null parent=8D3SN]
 + Orfelia knabi Lane, 1950 [ACCEPTED SPECIES 9820:75632 nidx=null]
Orfelia macilenta
 - Orfelia macilenta Lynch Arribálzaga, 1892 [SYNONYM SPECIES 9817:89M56 nidx=null parent=8D3SP]
 + Orfelia macilenta Lynch Arribálzaga, 1892 [ACCEPTED SPECIES 9820:6T62P nidx=null]
Orfelia maculata
 - Orfelia maculata Cao & Xu, 2008 [ACCEPTED SPECIES 9817:755QP nidx=null]
 + Orfelia maculata Matile, 1970 [SYNONYM SPECIES 9820:8YVBC nidx=null parent=5CB6H]
Orfelia maiapenai
 - Orfelia maiapenai Lane, 1950 [SYNONYM SPECIES 9817:89M57 nidx=null parent=8D3SQ]
 + Orfelia maiapenai Lane, 1950 [ACCEPTED SPECIES 9820:7562P nidx=null]
Orfelia monchroma
 - Orfelia monchroma Edwards, 1933 [SYNONYM SPECIES 9817:89M58 nidx=null parent=8D3SR]
 + Orfelia monchroma Edwards, 1933 [ACCEPTED SPECIES 9820:6T5QM nidx=null]
Orfelia negotiosa
 - Orfelia negotiosa Sivec & Plassmann, 1982 [SYNONYM SPECIES 9817:89M59 nidx=null parent=8D3RT]
 + Orfelia negotiosa Sivec & Plassmann, 1982 [ACCEPTED SPECIES 9820:6T62M nidx=null]
Orfelia paraensis
 - Orfelia paraensis Lane, 1958 [SYNONYM SPECIES 9817:89M5B nidx=null parent=8D3ST]
 + Orfelia paraensis Lane, 1958 [ACCEPTED SPECIES 9820:755QL nidx=null]
Orfelia paraguayana
 - Orfelia paraguayana Edwards, 1934 [SYNONYM SPECIES 9817:89M5C nidx=null parent=8D3SV]
 + Orfelia paraguayana Edwards, 1934 [ACCEPTED SPECIES 9820:7562L nidx=null]
Orfelia quasilineata
 - Orfelia quasilineata Edwards, 1919 [SYNONYM SPECIES 9817:89M5D nidx=null parent=8D3SW]
 + Orfelia quasilineata Edwards, 1919 [ACCEPTED SPECIES 9820:6T5QK nidx=null]
Orfelia regularis
 - Orfelia regularis Edwards, 1934 [SYNONYM SPECIES 9817:89M5F nidx=null parent=8D3SX]
 + Orfelia regularis Edwards, 1934 [ACCEPTED SPECIES 9820:6T62K nidx=null]
Orfelia saeva
 - Orfelia saeva Sivec & Plassmann, 1982 [SYNONYM SPECIES 9817:89M5G nidx=null parent=8D3RV]
 + Orfelia saeva Sivec & Plassmann, 1982 [ACCEPTED SPECIES 9820:7562K nidx=null]
Orfelia salobrensis
 - Orfelia salobrensis Edwards, 1941 [SYNONYM SPECIES 9817:89M5H nidx=null parent=8D3SY]
 + Orfelia salobrensis Edwards, 1941 [ACCEPTED SPECIES 9820:6T5QJ nidx=null]
Orfelia saparai
 - Orfelia saparai Lane, 1950 [SYNONYM SPECIES 9817:89M5J nidx=null parent=8D3SZ]
 + Orfelia saparai Lane, 1950 [ACCEPTED SPECIES 9820:6T62J nidx=null]
Orfelia shannoni
 - Orfelia shannoni Lane, 1948 [SYNONYM SPECIES 9817:89M5K nidx=null parent=8D3T2]
 + Orfelia shannoni Lane, 1948 [ACCEPTED SPECIES 9820:755QJ nidx=null]
Orfelia souzai
 - Orfelia souzai Lane, 1959 [SYNONYM SPECIES 9817:89M5L nidx=null parent=8D3T3]
 + Orfelia souzai Lane, 1959 [ACCEPTED SPECIES 9820:7562J nidx=null]
Orfelia spatulata
 - Orfelia spatulata Edwards, 1940 [SYNONYM SPECIES 9817:89M5M nidx=null parent=8D3T4]
 + Orfelia spatulata Edwards, 1940 [ACCEPTED SPECIES 9820:6STQH nidx=null]
Orfelia tamoyoi
 - Orfelia tamoyoi Lane, 1950 [SYNONYM SPECIES 9817:89M5N nidx=null parent=8D3T5]
 + Orfelia tamoyoi Lane, 1950 [ACCEPTED SPECIES 9820:74TQH nidx=null]
Orfelia tapuiai
 - Orfelia tapuiai Lane, 1950 [SYNONYM SPECIES 9817:89M5P nidx=null parent=8D3T6]
 + Orfelia tapuiai Lane, 1950 [ACCEPTED SPECIES 9820:755QH nidx=null]
Orfelia triangulifera
 - Orfelia triangulifera Freeman, 1951 [SYNONYM SPECIES 9817:89M5Q nidx=null parent=8D3T7]
 + Orfelia triangulifera Freeman, 1951 [ACCEPTED SPECIES 9820:7562H nidx=null]
Orfelia zeteki
 - Orfelia zeteki Lane, 1950 [SYNONYM SPECIES 9817:89M5T nidx=null parent=8D3T8]
 + Orfelia zeteki Lane, 1950 [ACCEPTED SPECIES 9820:74TQF nidx=null]
Orogastrura fusca
 - Orogastrura fusca Gers, 1981 [ACCEPTED SPECIES 9817:74VWC nidx=null]
 + Orogastrura fusca Gers, C, 1980 [SYNONYM SPECIES 9820:8YZHG nidx=null parent=8ZNXX]
 + Orogastrura fusca Jordana, R & Arbea, JI in Ramos, MA et al., 1997 [SYNONYM SPECIES 9820:8YZHH nidx=null parent=8ZNXX]
 + Orogastrura fusca Arbea, JI & Jordana, R, 1990 [SYNONYM SPECIES 9820:8YZHJ nidx=null parent=8ZNXX]
 + Orogastrura fusca Arbea, JI, 2020 [SYNONYM SPECIES 9820:8YZHK nidx=null parent=8ZNXX]
Ortalis rufipes
 - Ortalis rufipes Macquart [ACCEPTED SPECIES 9817:89M7N nidx=null]
 + Ortalis rufipes Macquart, 1835 [SYNONYM SPECIES 9820:74XH7 nidx=null parent=3KYZX]
Orthellia (Neomyia) latifolia
 - Orthellia (Neomyia) latifolia Ni & Fan, 1985 [ACCEPTED SPECIES 9817:8GTFF nidx=null]
 + Orthellia (Neomyia) latifolia Ni & Fan, 1984 [ACCEPTED SPECIES 9820:8YVBT nidx=null]
Orthellia latifolia
 - Orthellia latifolia Ni & Fan, 1985 [SYNONYM SPECIES 9817:8H32F nidx=null parent=8GTFF]
 + Orthellia latifolia Ni & Fan, 1984 [SYNONYM SPECIES 9820:8YVBV nidx=null parent=8YVBT]
Orthocladius (Orthocladius) seiryugeheus
 - Orthocladius (Orthocladius) seiryugeheus Sasa, Suzuki & Sakai, 1998 [ACCEPTED SPECIES 9817:8D4BP nidx=null]
 + Orthocladius (Orthocladius) seiryugeheus Sasa, Suzuki & Sakai, 1988 [ACCEPTED SPECIES 9820:8YVCP nidx=null]
Orthocladius albinervis
 - Orthocladius albinervis Wulp, 1874 [SYNONYM SPECIES 9817:89M7V nidx=null parent=8DHTD]
 + Orthocladius albinervis Wulp, 1875 [SYNONYM SPECIES 9820:8YVCR nidx=null parent=8DHTD]
Orthocladius nanulus
 - Orthocladius nanulus Wulp, 1874 [SYNONYM SPECIES 9817:74WWZ nidx=null parent=45MWJ]
 + Orthocladius nanulus Wulp, 1875 [SYNONYM SPECIES 9820:8YVCW nidx=null parent=45MWJ]
Orthocladius seiryugeheus
 - Orthocladius seiryugeheus Sasa, Suzuki & Sakai, 1998 [SYNONYM SPECIES 9817:89MBZ nidx=null parent=8D4BP]
 + Orthocladius seiryugeheus Sasa, Suzuki & Sakai, 1988 [SYNONYM SPECIES 9820:8YVCQ nidx=null parent=8YVCP]
Orthopodomyia pulchripalpis
 - Orthopodomyia pulchripalpis Rondani [ACCEPTED SPECIES 9817:89MCY nidx=null]
 + Orthopodomyia pulchripalpis Stone, 1959 [SYNONYM SPECIES 9820:758T2 nidx=null parent=7594Q]
Oryctomorphus fairmairi
 - Oryctomorphus fairmairi Redtenbacher, 1867 [SYNONYM SPECIES 9817:74ZC2 nidx=null parent=6SZBR]
 + Oryctomorphus fairmairi Redtenbacher, 1868 [SYNONYM SPECIES 9820:8YX6Q nidx=null parent=6SZBR]
Osmia capicola
 - Osmia capicola Friese, 1909 [ACCEPTED SPECIES 9817:8S7BY nidx=null]
 + Osmia capicola Friese, 1909 [SYNONYM SPECIES 9820:6SZVK nidx=null parent=QQ9S]
Ovisargus gracilis
 - Ovisargus gracilis Mostovski, 1996 [ACCEPTED SPECIES 9817:8D4TY nidx=null]
 + Ovisargus gracilis Mostovski, 1997 [ACCEPTED SPECIES 9820:8YVDD nidx=null]
Oxyoppiella
 - Oxyoppiella Subías & Rodríguez, 1986 [ACCEPTED SUBGENUS 9817:8W5DR nidx=null]
 + Oxyoppiella Subías & Rodríguez, 1986 [ACCEPTED SUBGENUS 9820:7Q7WC nidx=null]
Pachrodema
 - Pachrodema Blanchard, 1851 [ACCEPTED GENUS 9817:6BNR nidx=null]
 + Pachrodema Blanchard, 1850 [ACCEPTED GENUS 9820:8YRSN nidx=null]
Pagiphora annulata
 - Pagiphora annulata (Brullé, 1832) [ACCEPTED SPECIES 9817:8VF59 nidx=null]
 + Pagiphora annulata (Brullé, 1832) [ACCEPTED SPECIES 9820:8Z457 nidx=null]
Pagurapseudes victoriae
 - Pagurapseudes victoriae Blazewicz-Paszkowycz & Bamber, 2007 [ACCEPTED SPECIES 9817:4BZPS nidx=null]
 + Pagurapseudes victoriae Blazewicz-Paszkowycz & Bamber, 2012 [ACCEPTED SPECIES 9820:8YY76 nidx=null]
Palapedia serenei
 - Palapedia serenei P.K.L. Ng, 1993 [ACCEPTED SPECIES 9817:4C3NM nidx=null]
 + Palapedia serenei PKL Ng, 1993 [ACCEPTED SPECIES 9820:8YY77 nidx=null]
Palapedia valentini
 - Palapedia valentini P.K.L. Ng, 1993 [ACCEPTED SPECIES 9817:4C3NP nidx=null]
 + Palapedia valentini PKL Ng, 1993 [ACCEPTED SPECIES 9820:8YY78 nidx=null]
Pallenopsis spicata
 - Pallenopsis spicata Hodgson, 1915 [ACCEPTED SPECIES 9817:4C5H4 nidx=null]
 + Pallenopsis spicata Hodgson, 1914 [ACCEPTED SPECIES 9820:8YY79 nidx=null]
Pallisentis
 - Pallisentis Van Cleave, 1928 [ACCEPTED SUBGENUS 9817:8W23C nidx=null]
 + Pallisentis Van Cleave, 1928 [ACCEPTED SUBGENUS 9820:7PP89 nidx=null]
Palpomyia (Palpomyia) terrea
 - Palpomyia (Palpomyia) terrea (Meigen, 1818) [ACCEPTED SPECIES 9817:8D5NH nidx=null]
 + Palpomyia (Palpomyia) terrea (Wiedemann, 1818) [ACCEPTED SPECIES 9820:8YVF2 nidx=null]
Palpomyia longicornis
 - Palpomyia longicornis (Williston, 1896) [ACCEPTED SPECIES 9817:4C77B nidx=null]
 + Palpomyia longicornis Kieffer, 1919 [SYNONYM SPECIES 9820:4C77C nidx=null parent=8D5LC]
Paludestrina forumjuliana
 - Paludestrina forumjuliana Pollonera, 1887 [SYNONYM SPECIES 9817:4C7JD nidx=null parent=6N4ZX]
 + Paludestrina forumjuliana Pollonera, 1886 [SYNONYM SPECIES 9820:8YY7C nidx=null parent=6N4ZX]
Pandicambarus
 - Pandicambarus Fitzpatrick, 1983 [ACCEPTED SUBGENUS 9817:8W5CF nidx=null]
 + Pandicambarus Fitzpatrick, 1983 [ACCEPTED SUBGENUS 9820:7Q7WS nidx=null]
Panimerus bosnicus
 - Panimerus bosnicus Krek, 1977 [SYNONYM SPECIES 9817:89MSB nidx=null parent=558FJ]
 + Panimerus bosnicus Krek, 1978 [SYNONYM SPECIES 9820:8YVF8 nidx=null parent=8ZRQF]
Panimerus unae
 - Panimerus unae Krek, 1977 [ACCEPTED SPECIES 9817:4CFQ5 nidx=null]
 + Panimerus unae Krek, 1978 [ACCEPTED SPECIES 9820:8YVFB nidx=null]
Panimerus verbassicus
 - Panimerus verbassicus Krek, 1977 [SYNONYM SPECIES 9817:89MSC nidx=null parent=558L4]
 + Panimerus verbassicus Krek, 1978 [SYNONYM SPECIES 9820:8YVFC nidx=null parent=8ZV4K]
Papilionella spasskii
 - Papilionella spasskii (Fenyuk, 1947) [ACCEPTED SPECIES 9817:4CKT9 nidx=null]
 + Papilionella spasskii (Feniuk, 1947) [ACCEPTED SPECIES 9820:8YPY5 nidx=null]
Papirioides caishijiensis
 - Papirioides caishijiensis Li, Z-H, Chen, J-X & Li, J, 2007 [SYNONYM SPECIES 9817:4CL23 nidx=null parent=4CL22]
 + Papirioides caishijiensis (Wu & Chen, 1996) [ACCEPTED SPECIES 9820:8Z6VK nidx=null]
Papirius flavosignatus var. cinerascens
 - Papirius flavosignatus var. cinerascens Reuter, 1885 [SYNONYM VARIETY 9817:5QGWV nidx=null parent=6CSXB]
 + Papirius flavosignatus var. cinerascens Reuter, OM, 1892 [SYNONYM VARIETY 9820:8Z84T nidx=null parent=6CSXB]
Paradelia mirabilis
 - Paradelia mirabilis Griffiths, 1987 [SYNONYM SPECIES 9817:88W67 nidx=null parent=8D6FX]
 + Paradelia mirabilis Griffiths, 1987 [ACCEPTED SPECIES 9820:4CSTJ nidx=null]
Paradelia nototrigona
 - Paradelia nototrigona Ge & Fan, 1981 [SYNONYM SPECIES 9817:89MVC nidx=null parent=8D6FY]
 + Paradelia nototrigona Ge & Fan, 1981 [ACCEPTED SPECIES 9820:4CSTK nidx=null]
Paradelia ogilviensis
 - Paradelia ogilviensis Griffiths, 1987 [SYNONYM SPECIES 9817:88W68 nidx=null parent=8D6FZ]
 + Paradelia ogilviensis Griffiths, 1987 [ACCEPTED SPECIES 9820:4CSTL nidx=null]
Paradelia salmitensis
 - Paradelia salmitensis Griffiths, 1987 [SYNONYM SPECIES 9817:88W69 nidx=null parent=8D6G4]
 + Paradelia salmitensis Griffiths, 1987 [ACCEPTED SPECIES 9820:4CSTP nidx=null]
Paradelia trigonaloides
 - Paradelia trigonaloides Griffiths, 1987 [SYNONYM SPECIES 9817:88W6B nidx=null parent=8D6G7]
 + Paradelia trigonaloides Griffiths, 1987 [ACCEPTED SPECIES 9820:4CSTS nidx=null]
Paradelia ventribarbata
 - Paradelia ventribarbata Griffiths, 1987 [SYNONYM SPECIES 9817:88W6C nidx=null parent=8D6G8]
 + Paradelia ventribarbata Griffiths, 1987 [ACCEPTED SPECIES 9820:75MWG nidx=null]
Paralispe palpalis
 - Paralispe palpalis Townsend, 1927 [SYNONYM SPECIES 9817:8D6WT nidx=null parent=4CTCH]
 + Paralispe palpalis Townsend, 1929 [SYNONYM SPECIES 9820:8YVFR nidx=null parent=8ZWKF]
Paramerina okimaculata
 - Paramerina okimaculata Sasa, 1991 [ACCEPTED SPECIES 9817:4D33M nidx=null]
 + Paramerina okimaculata Sasa, 1990 [ACCEPTED SPECIES 9820:8YVFS nidx=null]
Paramesembrius bellus
 - Paramesembrius bellus Li, 1997 [SYNONYM SPECIES 9817:89N5G nidx=null parent=8CPV6]
 + Paramesembrius bellus Li, 1997 [ACCEPTED SPECIES 9820:4D345 nidx=null]
Parametriocnemus stylatus
 - Parametriocnemus stylatus (Kieffer, 1924) [ACCEPTED SPECIES 9817:4D39H nidx=null]
 + Parametriocnemus stylatus (Spärck, 1923) [ACCEPTED SPECIES 9820:8YVFT nidx=null]
Paramonova mangara
 - Paramonova mangara Kelsey, 1987 [ACCEPTED SPECIES 9817:4D3TT nidx=null]
 + Paramonova mangara Kelsey, 1989 [SYNONYM SPECIES 9820:8YVFV nidx=null parent=4D3TS]
Paramormia polyascoidea
 - Paramormia polyascoidea (Krek, 1970) [ACCEPTED SPECIES 9817:4D3V3 nidx=null]
 + Paramormia polyascoidea (Krek, 1971) [ACCEPTED SPECIES 9820:8YVFW nidx=null]
Paramyia brevikeraia
 - Paramyia brevikeraia Levesque-Beaudin & Mlynarek, 2020 [ACCEPTED SPECIES 9817:8D6YT nidx=null]
 + Paramyia brevikeraia Levesque-Beaudin & Mlynarek, 2018 [ACCEPTED SPECIES 9820:8YVFX nidx=null]
Paramyia incrassatoloba
 - Paramyia incrassatoloba Levesque-Beaudin & Mlynarek, 2020 [ACCEPTED SPECIES 9817:8D6YV nidx=null]
 + Paramyia incrassatoloba Levesque-Beaudin & Mlynarek, 2018 [ACCEPTED SPECIES 9820:8YVFY nidx=null]
Paramyia lustrum
 - Paramyia lustrum Levesque-Beaudin & Mlynarek, 2020 [ACCEPTED SPECIES 9817:8D6YW nidx=null]
 + Paramyia lustrum Levesque-Beaudin & Mlynarek, 2018 [ACCEPTED SPECIES 9820:8YVFZ nidx=null]
Paramyia lutea
 - Paramyia lutea Levesque-Beaudin & Mlynarek, 2020 [ACCEPTED SPECIES 9817:8D6YX nidx=null]
 + Paramyia lutea Levesque-Beaudin & Mlynarek, 2018 [ACCEPTED SPECIES 9820:8YVG2 nidx=null]
Paramyia nigritarsi
 - Paramyia nigritarsi Levesque-Beaudin & Mlynarek, 2020 [ACCEPTED SPECIES 9817:8D6YY nidx=null]
 + Paramyia nigritarsi Levesque-Beaudin & Mlynarek, 2018 [ACCEPTED SPECIES 9820:8YVG3 nidx=null]
Paramyia pseudonitens
 - Paramyia pseudonitens Levesque-Beaudin & Mlynarek, 2020 [ACCEPTED SPECIES 9817:8D6YZ nidx=null]
 + Paramyia pseudonitens Levesque-Beaudin & Mlynarek, 2018 [ACCEPTED SPECIES 9820:8YVG4 nidx=null]
Paramyia rectiloba
 - Paramyia rectiloba Levesque-Beaudin & Mlynarek, 2020 [ACCEPTED SPECIES 9817:8D6Z2 nidx=null]
 + Paramyia rectiloba Levesque-Beaudin & Mlynarek, 2018 [ACCEPTED SPECIES 9820:8YVG5 nidx=null]
Paramyia silvestris
 - Paramyia silvestris Levesque-Beaudin & Mlynarek, 2020 [ACCEPTED SPECIES 9817:8D6Z3 nidx=null]
 + Paramyia silvestris Levesque-Beaudin & Mlynarek, 2018 [ACCEPTED SPECIES 9820:8YVG6 nidx=null]
Paramyia wheeleri
 - Paramyia wheeleri Levesque-Beaudin & Mlynarek, 2020 [ACCEPTED SPECIES 9817:8D6Z4 nidx=null]
 + Paramyia wheeleri Levesque-Beaudin & Mlynarek, 2018 [ACCEPTED SPECIES 9820:8YVG7 nidx=null]
Paranura s-uenoi
 - Paranura s-uenoi Simón-Benito, JC & Palacios-Vargas, JG, 2008 [SYNONYM SPECIES 9817:75R84 nidx=null parent=45KNZ]
 + Paranura s-uenoi Massoud, Z, 1967 [SYNONYM SPECIES 9820:8Z6WH nidx=null parent=45KNZ]
 + Paranura s-uenoi Christiansen & Bellinger, 1980 [SYNONYM SPECIES 9820:8Z6WJ nidx=null parent=45KNZ]
 + Paranura s-uenoi Cassagnau, 1982 [SYNONYM SPECIES 9820:8Z6WK nidx=null parent=45KNZ]
 + Paranura s-uenoi Yosii, R, 1965 [SYNONYM SPECIES 9820:8Z6WL nidx=null parent=45KNZ]
 + Paranura s-uenoi Yosii, 1955 [SYNONYM SPECIES 9820:8Z6WM nidx=null parent=45KNZ]
 + Paranura s-uenoi Yosii, R, 1977 [SYNONYM SPECIES 9820:8Z6WN nidx=null parent=45KNZ]
Parapilumnus malardi
 - Parapilumnus malardi (de Man, 1913) [SYNONYM SPECIES 9817:4D8RJ nidx=null parent=3SLS7]
 + Parapilumnus malardi (de Man, 1914) [SYNONYM SPECIES 9820:8YY85 nidx=null parent=3SLS7]
Parasarcophaga jaipurensis
 - Parasarcophaga jaipurensis Nandi, 1990 [SYNONYM SPECIES 9817:89N6N nidx=null parent=8D74K]
 + Parasarcophaga jaipurensis Nandi, 1990 [ACCEPTED SPECIES 9820:4DB8N nidx=null]
Parasarcophaga josephi
 - Parasarcophaga josephi Nandi, 2002 [SYNONYM SPECIES 9817:89N6Q nidx=null parent=8D74L]
 + Parasarcophaga josephi Nandi, 2002 [ACCEPTED SPECIES 9820:4DB8Q nidx=null]
Parasarcophaga pinqi
 - Parasarcophaga pinqi Guan, Wang, Zhang, Ding & Bai, 2019, 2017 [SYNONYM SPECIES 9817:8GTTW nidx=null parent=8DQB6]
 + Parasarcophaga pinqi Guan, Wang, Zhang, Ding & Bai, 2017 [SYNONYM SPECIES 9820:8YVGB nidx=null parent=8DQB6]
Parasarcophaga unquitigris
 - Parasarcophaga unquitigris Guan, Wang, Zhang, Ding & Bai, 2018, 2017 [SYNONYM SPECIES 9817:8GT9F nidx=null parent=8DQBR]
 + Parasarcophaga unquitigris Guan, Wang, Zhang, Ding & Bai, 2017 [SYNONYM SPECIES 9820:8YVGC nidx=null parent=8DQBR]
Parasmittina talismani
 - Parasmittina talismani (Calvet, 1907) [ACCEPTED SPECIES 9817:75QGJ nidx=null]
 + Parasmittina talismani (Calvet, 1906) [ACCEPTED SPECIES 9820:8YXHG nidx=null]
Paraspidosiphon
 - Paraspidosiphon Stephen, 1964 [ACCEPTED SUBGENUS 9817:8W4WV nidx=null]
 + Paraspidosiphon Stephen, 1964 [ACCEPTED SUBGENUS 9820:7PQ4J nidx=null]
Parastreptocephalus
 - Parastreptocephalus Brendonck, Hamer & Thiéry, 1992 [ACCEPTED SUBGENUS 9817:8W5F9 nidx=null]
 + Parastreptocephalus Brendonck, Hamer & Thiéry, 1992 [ACCEPTED SUBGENUS 9820:7Q7Y3 nidx=null]
Paratrichocladius
 - Paratrichocladius [ACCEPTED GENUS 9817:63M5P nidx=null]
 + Paratrichocladius [ACCEPTED SUBGENUS 9820:8YQL6 nidx=null]
Paronella dahlii
 - Paronella dahlii Yayuk, RS, 1989 [SYNONYM SPECIES 9817:4DRFH nidx=null parent=4KJ4N]
 + Paronella dahlii Schäffer, C, 1898 [SYNONYM SPECIES 9820:8Z6X6 nidx=null parent=4KJ4N]
 + Paronella dahlii Womersley, 1937 [SYNONYM SPECIES 9820:8Z6X7 nidx=null parent=4KJ4N]
 + Paronella dahlii Schött, 1901 [SYNONYM SPECIES 9820:8Z6X9 nidx=null parent=4KJ4N]
 + Paronella dahlii Absolon, K & Ksenemann, M, 1942 [SYNONYM SPECIES 9820:8Z6XB nidx=null parent=4KJ4N]
Paroxyna glaciatrix
 - Paroxyna glaciatrix Enderlein, 1934 [SYNONYM SPECIES 9817:88WJT nidx=null parent=55BZZ]
 + Paroxyna glaciatrix Enderlein, 1933 [SYNONYM SPECIES 9820:8YVGG nidx=null parent=8YWG7]
Parthenope contracta
 - Parthenope contracta O.G. Costa & A. Costa, 1840 [in O.G. Costa & A. Costa, 1838-1871] [SYNONYM SPECIES 9817:7XZZP nidx=null parent=7Y225]
 + Parthenope contracta OG Costa & A Costa, 1840 [in OG Costa & A Costa, 1838-1871] [SYNONYM SPECIES 9820:8YY8J nidx=null parent=7Y225]
Parthenope longimana
 - Parthenope longimana (Linnaeus, 1764) [SYNONYM SPECIES 9817:7XZZV nidx=null parent=4DTXK]
 + Parthenope longimana (Linnaeus, 1758) [SYNONYM SPECIES 9820:8YY8K nidx=null parent=4DTXK]
Parthenope massena
 - Parthenope massena (P. Roux, 1830) [SYNONYM SPECIES 9817:4DTXM nidx=null parent=7Y225]
 + Parthenope massena (P Roux, 1830 [in P Roux, 1828-1830] ) [SYNONYM SPECIES 9820:8YY8L nidx=null parent=7Y225]
Parvisargus malus
 - Parvisargus malus Mostovski, 1996 [ACCEPTED SPECIES 9817:8D7L7 nidx=null]
 + Parvisargus malus Mostovski, 1997 [ACCEPTED SPECIES 9820:8YVGL nidx=null]
Parvisargus peior
 - Parvisargus peior Mostovski, 1996 [ACCEPTED SPECIES 9817:8D7L8 nidx=null]
 + Parvisargus peior Mostovski, 1997 [ACCEPTED SPECIES 9820:8YVGM nidx=null]
Passalus nikobaricus
 - Passalus nikobaricus Redtenbacher, 1867 [SYNONYM SPECIES 9817:75SCT nidx=null parent=94QC]
 + Passalus nikobaricus Redtenbacher, 1868 [SYNONYM SPECIES 9820:8YX6S nidx=null parent=94QC]
Passerina tartonraira valentina
 - Passerina tartonraira valentina Pau [SYNONYM INFRASPECIFIC_NAME 9817:8XZ8F nidx=null parent=5LJDZ]
 + Passerina tartonraira valentina Pau [SYNONYM INFRASPECIFIC_NAME 9820:8Z644 nidx=null parent=5LJDZ]
Paxiximyia sulmatogrossensis
 - Paxiximyia sulmatogrossensis Toma & Olivier, 2017 [ACCEPTED SPECIES 9817:8D7Q7 nidx=null]
 + Paxiximyia sulmatogrossensis Toma & Olivier, 2018 [ACCEPTED SPECIES 9820:8YVGQ nidx=null]
Pegomya agarici
 - Pegomya agarici Griffiths, 1984 [SYNONYM SPECIES 9817:88WVB nidx=null parent=8D84N]
 + Pegomya agarici Griffiths, 1984 [ACCEPTED SPECIES 9820:75XXZ nidx=null]
Pegomya aldrichi
 - Pegomya aldrichi Griffiths, 1983 [SYNONYM SPECIES 9817:88WVC nidx=null parent=8D84P]
 + Pegomya aldrichi Griffiths, 1983 [ACCEPTED SPECIES 9820:6TY8B nidx=null]
Pegomya amargosana
 - Pegomya amargosana Griffiths, 1982 [SYNONYM SPECIES 9817:88WVD nidx=null parent=8D82W]
 + Pegomya amargosana Griffiths, 1982 [ACCEPTED SPECIES 9820:769WB nidx=null]
Pegomya analis
 - Pegomya analis Schnabl, 1915 [SYNONYM SPECIES 9817:88WVF nidx=null parent=8C4QM]
 + Pegomya analis Schnabl, 1915 [SYNONYM SPECIES 9820:6TY8C nidx=null parent=6HKH3]
Pegomya arcticola
 - Pegomya arcticola Huckett, 1965 [SYNONYM SPECIES 9817:88WVG nidx=null parent=8D6FP]
 + Pegomya arcticola Huckett, 1965 [SYNONYM SPECIES 9820:75XWD nidx=null parent=6TMWG]
Pegomya bifurcata
 - Pegomya bifurcata Griffiths, 1983 [SYNONYM SPECIES 9817:88WVK nidx=null parent=8D84R]
 + Pegomya bifurcata Griffiths, 1983 [ACCEPTED SPECIES 9820:6TY8J nidx=null]
Pegomya canyonensis
 - Pegomya canyonensis Huckett, 1966 [SYNONYM SPECIES 9817:88WVM nidx=null parent=8D83X]
 + Pegomya canyonensis Huckett, 1966 [SYNONYM SPECIES 9820:75Y8L nidx=null parent=6TXYD]
Pegomya casualis
 - Pegomya casualis Huckett, 1967 [SYNONYM SPECIES 9817:88WVN nidx=null parent=8D83K]
 + Pegomya casualis Huckett, 1967 [SYNONYM SPECIES 9820:6TY8M nidx=null parent=6TY99]
Pegomya circumpolaris
 - Pegomya circumpolaris Ackland & Griffiths, 1983 [SYNONYM SPECIES 9817:88WVP nidx=null parent=8D84W]
 + Pegomya circumpolaris Ackland & Griffiths, 1983 [ACCEPTED SPECIES 9820:6TXWP nidx=null]
Pegomya collomiae
 - Pegomya collomiae Griffiths, 1982 [SYNONYM SPECIES 9817:88WVQ nidx=null parent=8D834]
 + Pegomya collomiae Griffiths, 1982 [ACCEPTED SPECIES 9820:75Y8P nidx=null]
Pegomya constricta
 - Pegomya constricta Griffiths, 1982 [SYNONYM SPECIES 9817:88WVR nidx=null parent=8D836]
 + Pegomya constricta Griffiths, 1982 [ACCEPTED SPECIES 9820:6TXWQ nidx=null]
Pegomya crassiforceps
 - Pegomya crassiforceps Griffiths, 1983 [SYNONYM SPECIES 9817:88WVS nidx=null parent=8D84X]
 + Pegomya crassiforceps Griffiths, 1983 [ACCEPTED SPECIES 9820:75XWQ nidx=null]
Pegomya criniventris
 - Pegomya criniventris Suwa, 1974 [SYNONYM SPECIES 9817:88WVT nidx=null parent=8D82V]
 + Pegomya criniventris Suwa, 1974 [SYNONYM SPECIES 9820:769WQ nidx=null parent=75Y8B]
Pegomya cygnicollina
 - Pegomya cygnicollina Griffiths, 1971 [SYNONYM SPECIES 9817:88WVV nidx=null parent=8D838]
 + Pegomya cygnicollina Griffiths, 1971 [ACCEPTED SPECIES 9820:6TXX3 nidx=null]
Pegomya defecta
 - Pegomya defecta Huckett, 1966 [SYNONYM SPECIES 9817:88WVW nidx=null parent=8D839]
 + Pegomya defecta Huckett, 1966 [ACCEPTED SPECIES 9820:6TY8R nidx=null]
Pegomya diffinis
 - Pegomya diffinis Huckett, 1966 [SYNONYM SPECIES 9817:88WVX nidx=null parent=8C4QX]
 + Pegomya diffinis Huckett, 1966 [SYNONYM SPECIES 9820:6TY94 nidx=null parent=6HKDQ]
Pegomya dissidens
 - Pegomya dissidens Huckett, 1966 [SYNONYM SPECIES 9817:88WVY nidx=null parent=8D83C]
 + Pegomya dissidens Huckett, 1966 [ACCEPTED SPECIES 9820:6TY8S nidx=null]
Pegomya disticha
 - Pegomya disticha Griffiths, 1983 [SYNONYM SPECIES 9817:88WVZ nidx=null parent=8D84Y]
 + Pegomya disticha Griffiths, 1983 [ACCEPTED SPECIES 9820:75XWS nidx=null]
Pegomya flaviantennata
 - Pegomya flaviantennata Griffiths, 1984 [SYNONYM SPECIES 9817:88WW2 nidx=null parent=8D852]
 + Pegomya flaviantennata Griffiths, 1984 [ACCEPTED SPECIES 9820:75XX5 nidx=null]
Pegomya flavivaria
 - Pegomya flavivaria Huckett, 1966 [SYNONYM SPECIES 9817:88WW3 nidx=null parent=8D6G5]
 + Pegomya flavivaria Huckett, 1966 [SYNONYM SPECIES 9820:769X5 nidx=null parent=4CSTQ]
Pegomya flaviventris
 - Pegomya flaviventris Griffiths, 1983 [SYNONYM SPECIES 9817:88WW4 nidx=null parent=8D853]
 + Pegomya flaviventris Griffiths, 1983 [ACCEPTED SPECIES 9820:6TXX6 nidx=null]
Pegomya fuscopunctata
 - Pegomya fuscopunctata Huckett, 1966 [SYNONYM SPECIES 9817:88WW5 nidx=null parent=8C4QR]
 + Pegomya fuscopunctata Huckett, 1966 [SYNONYM SPECIES 9820:6TY8V nidx=null parent=6HKDX]
Pegomya gilvoides
 - Pegomya gilvoides Griffiths, 1983 [SYNONYM SPECIES 9817:88WW6 nidx=null parent=8D858]
 + Pegomya gilvoides Griffiths, 1983 [ACCEPTED SPECIES 9820:75XX7 nidx=null]
Pegomya hirticauda
 - Pegomya hirticauda Huckett, 1966 [SYNONYM SPECIES 9817:88WW7 nidx=null parent=8D85B]
 + Pegomya hirticauda Huckett, 1966 [ACCEPTED SPECIES 9820:769WW nidx=null]
Pegomya inconstans
 - Pegomya inconstans Huckett, 1965 [SYNONYM SPECIES 9817:88WW8 nidx=null parent=8D84T]
 + Pegomya inconstans Huckett, 1965 [SYNONYM SPECIES 9820:769WX nidx=null parent=6TY8L]
Pegomya kodiakana
 - Pegomya kodiakana Huckett, 1965 [SYNONYM SPECIES 9817:88WWB nidx=null parent=8D83R]
 + Pegomya kodiakana Huckett, 1965 [ACCEPTED SPECIES 9820:769WZ nidx=null]
Pegomya macalpinei
 - Pegomya macalpinei Griffiths, 1983 [SYNONYM SPECIES 9817:88WWC nidx=null parent=8D85F]
 + Pegomya macalpinei Griffiths, 1983 [ACCEPTED SPECIES 9820:6TXZJ nidx=null]
Pegomya macrophthalma
 - Pegomya macrophthalma Griffiths, 1984 [SYNONYM SPECIES 9817:88WWD nidx=null parent=8D85G]
 + Pegomya macrophthalma Griffiths, 1984 [ACCEPTED SPECIES 9820:769ZJ nidx=null]
Pegomya magdalenensis
 - Pegomya magdalenensis Griffiths, 1982 [SYNONYM SPECIES 9817:88WWF nidx=null parent=8D83S]
 + Pegomya magdalenensis Griffiths, 1982 [ACCEPTED SPECIES 9820:75XZK nidx=null]
Pegomya manicata
 - Pegomya manicata (Schnabl, 1915) [ACCEPTED SPECIES 9817:75XZL nidx=null]
 + Pegomya manicata Schnabl, 1915 [SYNONYM SPECIES 9820:769ZL nidx=null parent=6HKH3]
Pegomya neomexicana
 - Pegomya neomexicana Griffiths, 1983 [SYNONYM SPECIES 9817:88WWH nidx=null parent=8D85K]
 + Pegomya neomexicana Griffiths, 1983 [ACCEPTED SPECIES 9820:6TXZR nidx=null]
Pegomya nigra
 - Pegomya nigra Suwa, 1974 [SYNONYM SPECIES 9817:88WWJ nidx=null parent=8D83V]
 + Pegomya nigra Suwa, 1974 [ACCEPTED SPECIES 9820:6TXZS nidx=null]
Pegomya obscurior
 - Pegomya obscurior Collin, 1931 [SYNONYM SPECIES 9817:88WWL nidx=null parent=8D86C]
 + Pegomya obscurior Collin, 1931 [SYNONYM SPECIES 9820:75XZW nidx=null parent=769KT]
Pegomya orbata
 - Pegomya orbata Huckett, 1966 [SYNONYM SPECIES 9817:88WWM nidx=null parent=8C4S2]
 + Pegomya orbata Huckett, 1966 [SYNONYM SPECIES 9820:6TXZX nidx=null parent=6HKG2]
Pegomya petasitae
 - Pegomya petasitae Griffiths, 1982 [SYNONYM SPECIES 9817:88WWP nidx=null parent=8D83W]
 + Pegomya petasitae Griffiths, 1982 [ACCEPTED SPECIES 9820:6TXZZ nidx=null]
Pegomya pribilofensis
 - Pegomya pribilofensis Huckett, 1965 [SYNONYM SPECIES 9817:88WWR nidx=null parent=8D83X]
 + Pegomya pribilofensis Huckett, 1965 [ACCEPTED SPECIES 9820:6TXYD nidx=null]
Pegomya pseudobicolor
 - Pegomya pseudobicolor Griffiths, 1982 [SYNONYM SPECIES 9817:88WWS nidx=null parent=8D83Y]
 + Pegomya pseudobicolor Griffiths, 1982 [ACCEPTED SPECIES 9820:75XYF nidx=null]
Pegomya quadralis
 - Pegomya quadralis Huckett, 1965 [SYNONYM SPECIES 9817:88WWT nidx=null parent=8D85N]
 + Pegomya quadralis Huckett, 1965 [ACCEPTED SPECIES 9820:6TXYG nidx=null]
Pegomya remissa
 - Pegomya remissa Huckett, 1965 [SYNONYM SPECIES 9817:88WWV nidx=null parent=8D85P]
 + Pegomya remissa Huckett, 1965 [ACCEPTED SPECIES 9820:6TXYJ nidx=null]
Pegomya rubriceps
 - Pegomya rubriceps Huckett [ACCEPTED SPECIES 9817:88WWW nidx=null]
 + Pegomya rubriceps Huckett, 1965 [SYNONYM SPECIES 9820:769YK nidx=null parent=6TXL5]
Pegomya rubrivaria
 - Pegomya rubrivaria Huckett, 1967 [SYNONYM SPECIES 9817:88WWX nidx=null parent=8D83Z]
 + Pegomya rubrivaria Huckett, 1967 [ACCEPTED SPECIES 9820:6TXYL nidx=null]
Pegomya rumicifoliae
 - Pegomya rumicifoliae Huckett, 1941 [SYNONYM SPECIES 9817:89NFG nidx=null parent=8D845]
 + Pegomya rumicifoliae Huckett, 1941 [ACCEPTED SPECIES 9820:75XYN nidx=null]
Pegomya sagehenensis
 - Pegomya sagehenensis Huckett, 1967 [SYNONYM SPECIES 9817:88WWY nidx=null parent=8D85S]
 + Pegomya sagehenensis Huckett, 1967 [ACCEPTED SPECIES 9820:6TXYP nidx=null]
Pegomya saximontana
 - Pegomya saximontana Griffiths, 1983 [SYNONYM SPECIES 9817:88WWZ nidx=null parent=8D85T]
 + Pegomya saximontana Griffiths, 1983 [ACCEPTED SPECIES 9820:75XYP nidx=null]
Pegomya setibasis
 - Pegomya setibasis Huckett, 1965 [SYNONYM SPECIES 9817:88WX2 nidx=null parent=8D85W]
 + Pegomya setibasis Huckett, 1965 [ACCEPTED SPECIES 9820:769YQ nidx=null]
Pegomya silvicola
 - Pegomya silvicola Huckett, 1966 [SYNONYM SPECIES 9817:88WX4 nidx=null parent=8D85X]
 + Pegomya silvicola Huckett, 1966 [ACCEPTED SPECIES 9820:75XZ3 nidx=null]
Pegomya simplex
 - Pegomya simplex Griffiths, 1982 [SYNONYM SPECIES 9817:88WX5 nidx=null parent=8D847]
 + Pegomya simplex Griffiths, 1982 [ACCEPTED SPECIES 9820:769YR nidx=null]
Pegomya sitiens
 - Pegomya sitiens Huckett, 1939 [SYNONYM SPECIES 9817:89NFH nidx=null parent=8D848]
 + Pegomya sitiens Huckett, 1939 [ACCEPTED SPECIES 9820:6TXZ4 nidx=null]
Pegomya sombrina
 - Pegomya sombrina Huckett, 1966 [SYNONYM SPECIES 9817:88WX6 nidx=null parent=8D85Z]
 + Pegomya sombrina Huckett, 1966 [ACCEPTED SPECIES 9820:6TXYT nidx=null]
Pegomya squamifera
 - Pegomya squamifera Stein, 1906 [SYNONYM SPECIES 9817:88WX7 nidx=null parent=8D843]
 + Pegomya squamifera Stein, 1906 [SYNONYM SPECIES 9820:6TXZ6 nidx=null parent=75XYM]
Pegomya stagnalis
 - Pegomya stagnalis Griffiths, 1982 [SYNONYM SPECIES 9817:88WX8 nidx=null parent=8D84B]
 + Pegomya stagnalis Griffiths, 1982 [ACCEPTED SPECIES 9820:75XZ6 nidx=null]
Pegomya stenometopa
 - Pegomya stenometopa Hennig, 1973 [SYNONYM SPECIES 9817:88WX9 nidx=null parent=8C4QL]
 + Pegomya stenometopa Hennig, 1973 [SYNONYM SPECIES 9820:6TXYV nidx=null parent=6HKHK]
Pegomya umbripennis
 - Pegomya umbripennis Huckett, 1966 [SYNONYM SPECIES 9817:88WXB nidx=null parent=8D84F]
 + Pegomya umbripennis Huckett, 1966 [ACCEPTED SPECIES 9820:6TXL2 nidx=null]
Pegomya unguiculata
 - Pegomya unguiculata Malloch, 1920 [SYNONYM SPECIES 9817:89NFJ nidx=null parent=8D6FN]
 + Pegomya unguiculata Malloch, 1920 [SYNONYM SPECIES 9820:75XKQ nidx=null parent=4CST9]
Pegomya utahensis
 - Pegomya utahensis Griffiths, 1982 [SYNONYM SPECIES 9817:88WXC nidx=null parent=8D84G]
 + Pegomya utahensis Griffiths, 1982 [ACCEPTED SPECIES 9820:6TXKR nidx=null]
Pegomya valmariensis
 - Pegomya valmariensis Griffiths, 1983 [SYNONYM SPECIES 9817:88WXF nidx=null parent=8D85W]
 + Pegomya valmariensis Griffiths, 1983 [SYNONYM SPECIES 9820:75XKR nidx=null parent=769YQ]
Pegomyia banffi
 - Pegomyia banffi Huckett, 1939 [SYNONYM SPECIES 9817:88WXZ nidx=null parent=8C4QL]
 + Pegomyia banffi Huckett, 1939 [SYNONYM SPECIES 9820:769L6 nidx=null parent=6HKHK]
Pegomyia bivittata
 - Pegomyia bivittata Stein, 1906 [SYNONYM SPECIES 9817:88WY2 nidx=null parent=8C4RB]
 + Pegomyia bivittata Stein, 1906 [SYNONYM SPECIES 9820:6TXKV nidx=null parent=6HKF4]
Pegomyia bjornssoni
 - Pegomyia bjornssoni Ringdahl, 1957 [SYNONYM SPECIES 9817:88WY3 nidx=null parent=8D83P]
 + Pegomyia bjornssoni Ringdahl, 1957 [SYNONYM SPECIES 9820:6TXL7 nidx=null parent=75Y8X]
Pegomyia celosiae
 - Pegomyia celosiae Hering, 1932 [SYNONYM SPECIES 9817:88WY9 nidx=null parent=8D83G]
 + Pegomyia celosiae Hering, 1932 [SYNONYM SPECIES 9820:75XL7 nidx=null parent=75Y8T]
Pegomyia chrysida
 - Pegomyia chrysida Huckett, 1939 [SYNONYM SPECIES 9817:88WYC nidx=null parent=8C4SZ]
 + Pegomyia chrysida Huckett, 1939 [SYNONYM SPECIES 9820:769L7 nidx=null parent=6HKH5]
Pegomyia cinctinervis
 - Pegomyia cinctinervis Stein, 1918 [SYNONYM SPECIES 9817:88WYD nidx=null parent=8C4RP]
 + Pegomyia cinctinervis Stein, 1918 [SYNONYM SPECIES 9820:6TXKW nidx=null parent=6HKG7]
Pegomyia corrupta
 - Pegomyia corrupta Huckett, 1939 [SYNONYM SPECIES 9817:88WYH nidx=null parent=8D866]
 + Pegomyia corrupta Huckett, 1939 [SYNONYM SPECIES 9820:75XKW nidx=null parent=75XYY]
Pegomyia cresca
 - Pegomyia cresca Huckett, 1939 [SYNONYM SPECIES 9817:88WYK nidx=null parent=8C4SZ]
 + Pegomyia cresca Huckett, 1939 [SYNONYM SPECIES 9820:75XL8 nidx=null parent=6HKH5]
Pegomyia debilis
 - Pegomyia debilis Stein, 1901 [SYNONYM SPECIES 9817:89NFL nidx=null parent=8C4RQ]
 + Pegomyia debilis Stein, 1901 [SYNONYM SPECIES 9820:769KW nidx=null parent=6HKFY]
Pegomyia dolosa
 - Pegomyia dolosa Stein, 1918 [SYNONYM SPECIES 9817:88WYM nidx=null parent=8D842]
 + Pegomyia dolosa Stein, 1918 [SYNONYM SPECIES 9820:769L8 nidx=null parent=75XYL]
Pegomyia duplicoides
 - Pegomyia duplicoides Snyder, 1952 [SYNONYM SPECIES 9817:88WYN nidx=null parent=8C4S2]
 + Pegomyia duplicoides Snyder, 1952 [SYNONYM SPECIES 9820:6TXKX nidx=null parent=6HKG2]
Pegomyia eximia
 - Pegomyia eximia Stein, 1916 [SYNONYM SPECIES 9817:89NFM nidx=null parent=8C4SL]
 + Pegomyia eximia Stein, 1916 [SYNONYM SPECIES 9820:75XKX nidx=null parent=6HKGW]
Pegomyia fringilla
 - Pegomyia fringilla Malloch, 1920 [SYNONYM SPECIES 9817:88WYQ nidx=null parent=8D83G]
 + Pegomyia fringilla Malloch, 1920 [SYNONYM SPECIES 9820:769KX nidx=null parent=75Y8T]
Pegomyia fuscicauda
 - Pegomyia fuscicauda Huckett, 1939 [SYNONYM SPECIES 9817:88WYT nidx=null parent=8C4R6]
 + Pegomyia fuscicauda Huckett, 1939 [SYNONYM SPECIES 9820:6TXKY nidx=null parent=6HKF7]
Pegomyia fuscinervis
 - Pegomyia fuscinervis Stein, 1920 [SYNONYM SPECIES 9817:88WYV nidx=null parent=8C4S2]
 + Pegomyia fuscinervis Stein, 1920 [SYNONYM SPECIES 9820:75XKY nidx=null parent=6HKG2]
Pegomyia fuscofasciata
 - Pegomyia fuscofasciata Malloch, 1920 [SYNONYM SPECIES 9817:88WYW nidx=null parent=8D86B]
 + Pegomyia fuscofasciata Malloch, 1920 [SYNONYM SPECIES 9820:769KY nidx=null parent=6TXKT]
Pegomyia iniqua
 - Pegomyia iniqua Stein, 1906 [SYNONYM SPECIES 9817:88WZ4 nidx=null parent=8D84T]
 + Pegomyia iniqua Stein, 1906 [SYNONYM SPECIES 9820:75XLB nidx=null parent=6TY8L]
Pegomyia jacobi
 - Pegomyia jacobi Malloch, 1920 [SYNONYM SPECIES 9817:88WZ5 nidx=null parent=8D844]
 + Pegomyia jacobi Malloch, 1920 [SYNONYM SPECIES 9820:6TXLC nidx=null parent=769YM]
Pegomyia lativittata
 - Pegomyia lativittata Malloch, 1920 [SYNONYM SPECIES 9817:88WZ7 nidx=null parent=8C4RB]
 + Pegomyia lativittata Malloch, 1920 [SYNONYM SPECIES 9820:769LC nidx=null parent=6HKF4]
Pegomyia longicornis
 - Pegomyia longicornis Huckett, 1939 [SYNONYM SPECIES 9817:88WZB nidx=null parent=8D85Y]
 + Pegomyia longicornis Huckett, 1939 [SYNONYM SPECIES 9820:6TXLD nidx=null parent=769YS]
Pegomyia luteola
 - Pegomyia luteola Malloch, 1920 [SYNONYM SPECIES 9817:88WZD nidx=null parent=8D869]
 + Pegomyia luteola Malloch, 1920 [SYNONYM SPECIES 9820:75XLD nidx=null parent=769KS]
Pegomyia marginata
 - Pegomyia marginata Huckett, 1939 [SYNONYM SPECIES 9817:88WZH nidx=null parent=8D83K]
 + Pegomyia marginata Huckett, 1939 [SYNONYM SPECIES 9820:769LD nidx=null parent=6TY99]
Pegomyia minima
 - Pegomyia minima Stein, 1906 [SYNONYM SPECIES 9817:88WZJ nidx=null parent=8D6G9]
 + Pegomyia minima Stein, 1906 [SYNONYM SPECIES 9820:75XLF nidx=null parent=8YVFN]
Pegomyia pertusa
 - Pegomyia pertusa Huckett, 1939 [SYNONYM SPECIES 9817:88WZS nidx=null parent=8D84T]
 + Pegomyia pertusa Huckett, 1939 [SYNONYM SPECIES 9820:75XLH nidx=null parent=6TY8L]
Pegomyia pilosa
 - Pegomyia pilosa Stein, 1900 [SYNONYM SPECIES 9817:88WZT nidx=null parent=8D85V]
 + Pegomyia pilosa Stein, 1900 [SYNONYM SPECIES 9820:769LH nidx=null parent=769YP]
Pegomyia pollinosa
 - Pegomyia pollinosa Ringdahl, 1938 [SYNONYM SPECIES 9817:88WZX nidx=null parent=8D84S]
 + Pegomyia pollinosa Ringdahl, 1938 [SYNONYM SPECIES 9820:6TXLJ nidx=null parent=769WK]
Pegomyia polygoni
 - Pegomyia polygoni Seamans, 1923 [SYNONYM SPECIES 9817:88WZY nidx=null parent=8D846]
 + Pegomyia polygoni Seamans, 1923 [SYNONYM SPECIES 9820:75XLJ nidx=null parent=75XZ2]
Pegomyia quadrispinosa
 - Pegomyia quadrispinosa Malloch, 1920 [SYNONYM SPECIES 9817:88WZZ nidx=null parent=8C4R9]
 + Pegomyia quadrispinosa Malloch, 1920 [SYNONYM SPECIES 9820:769LJ nidx=null parent=6HKF3]
Pegomyia ruficeps
 - Pegomyia ruficeps Stein, 1898 [SYNONYM SPECIES 9817:88X23 nidx=null parent=8D84M]
 + Pegomyia ruficeps Stein, 1898 [SYNONYM SPECIES 9820:75XLK nidx=null parent=6TXL5]
Pegomyia semirufa
 - Pegomyia semirufa Ringdahl, 1932 [SYNONYM SPECIES 9817:88X24 nidx=null parent=8C4QJ]
 + Pegomyia semirufa Ringdahl, 1932 [SYNONYM SPECIES 9820:6TXLL nidx=null parent=6HKG9]
Pegomyia setiformis
 - Pegomyia setiformis Huckett, 1939 [SYNONYM SPECIES 9817:88X25 nidx=null parent=8C4R6]
 + Pegomyia setiformis Huckett, 1939 [SYNONYM SPECIES 9820:75XLL nidx=null parent=6HKF7]
Pegomyia solitaria
 - Pegomyia solitaria Stein, 1906 [SYNONYM SPECIES 9817:88X2B nidx=null parent=8D85R]
 + Pegomyia solitaria Stein, 1906 [SYNONYM SPECIES 9820:75XLM nidx=null parent=6TXYM]
Pegomyia subgrisea
 - Pegomyia subgrisea Malloch, 1920 [SYNONYM SPECIES 9817:88X2J nidx=null parent=8C4QV]
 + Pegomyia subgrisea Malloch, 1920 [SYNONYM SPECIES 9820:75XLN nidx=null parent=6HKDK]
Pegomyia tacta
 - Pegomyia tacta Huckett, 1939 [SYNONYM SPECIES 9817:88X2K nidx=null parent=8D6G3]
 + Pegomyia tacta Huckett, 1939 [SYNONYM SPECIES 9820:769LN nidx=null parent=4CSTN]
Pegomyia thrixia
 - Pegomyia thrixia Huckett, 1939 [SYNONYM SPECIES 9817:88X2L nidx=null parent=8C4RL]
 + Pegomyia thrixia Huckett, 1939 [SYNONYM SPECIES 9820:75XLP nidx=null parent=6HKFW]
Pegomyia tribulis
 - Pegomyia tribulis Stein, 1901 [SYNONYM SPECIES 9817:89NFP nidx=null parent=8C4R8]
 + Pegomyia tribulis Stein, 1901 [SYNONYM SPECIES 9820:6TXLQ nidx=null parent=6HKF9]
Pegomyia triseta
 - Pegomyia triseta Malloch, 1920 [SYNONYM SPECIES 9817:88X2Q nidx=null parent=8D84S]
 + Pegomyia triseta Malloch, 1920 [SYNONYM SPECIES 9820:6TXM2 nidx=null parent=769WK]
Pegomyia verticala
 - Pegomyia verticala Snyder, 1952 [SYNONYM SPECIES 9817:88X2X nidx=null parent=8C4S2]
 + Pegomyia verticala Snyder, 1952 [SYNONYM SPECIES 9820:769LQ nidx=null parent=6HKG2]
Pegomyia vicina
 - Pegomyia vicina Lintner, 1883 [SYNONYM SPECIES 9817:88X2Z nidx=null parent=8D82Y]
 + Pegomyia vicina Lintner, 1883 [SYNONYM SPECIES 9820:769M2 nidx=null parent=769WH]
Pegomyia villeneuviana
 - Pegomyia villeneuviana Hendel, 1925 [SYNONYM SPECIES 9817:88X32 nidx=null parent=8D83G]
 + Pegomyia villeneuviana Hendel, 1925 [SYNONYM SPECIES 9820:6TXJP nidx=null parent=75Y8T]
Pegomyza consaguinea
 - Pegomyza consaguinea Tiensuu, 1938 [SYNONYM SPECIES 9817:75XJP nidx=null parent=6TR6F]
 + Pegomyza consaguinea Dely-Draskovits, 1993 [SYNONYM SPECIES 9820:8YVGY nidx=null parent=8Z54F]
Pegoplata aestiva
 - Pegoplata aestiva (Meigen, 1826) [ACCEPTED SPECIES 9817:6TXK3 nidx=null]
 + Pegoplata aestiva Macquart, 1835 [ACCEPTED SPECIES 9820:8YVH2 nidx=null]
Pelecocera escorialensis
 - Pelecocera escorialensis Strobl, 1909 [SYNONYM SPECIES 9817:89NFR nidx=null parent=8BFPY]
 + Pelecocera escorialensis Strobl, 1909 [ACCEPTED SPECIES 9820:6TYWW nidx=null]
Peleteria confusa
 - Peleteria confusa Curran [ACCEPTED SPECIES 9817:88X4C nidx=null]
 + Peleteria confusa Curran, 1925 [SYNONYM SPECIES 9820:6TZ3M nidx=null parent=8D89N]
Pellona ditchela
 - Pellona ditchela Valenciennes, 1847 [ACCEPTED SPECIES 9817:76BDH nidx=null]
 + Pellona ditchela Valenciennes, 1847 [ACCEPTED SPECIES 9820:8YY8T nidx=null]
Penniverpa bromleyi
 - Penniverpa bromleyi Metz & Irwin [ACCEPTED SPECIES 9817:89NK8 nidx=null]
 + Penniverpa bromleyi Metz & Irwin, 2003 [SYNONYM SPECIES 9820:76LCG nidx=null parent=76LCJ]
Pentapedilum robusticeps
 - Pentapedilum robusticeps Guha & Chaudhuri, 1981 [ACCEPTED SPECIES 9817:76MTC nidx=null]
 + Pentapedilum robusticeps Guha & Chaudhuri, 1986 [ACCEPTED SPECIES 9820:76N5B nidx=null]
 + Pentapedilum robusticeps Guha & Chaudhuri, 1985 [AMBIGUOUS_SYNONYM SPECIES 9820:8YVHM nidx=null parent=8Z4DV]
Pericoma (Pericoma) bosniaca
 - Pericoma (Pericoma) bosniaca Krek, 1967 [ACCEPTED SPECIES 9817:8GTDW nidx=null]
 + Pericoma (Pericoma) bosniaca Krek, 1966 [ACCEPTED SPECIES 9820:8YVHP nidx=null]
Pericoma bosniaca
 - Pericoma bosniaca Krek, 1967 [SYNONYM SPECIES 9817:8D8SB nidx=null parent=8GTDW]
 + Pericoma bosniaca Krek, 1966 [SYNONYM SPECIES 9820:8YVHN nidx=null parent=8YVHP]
Pericoma hungarica
 - Pericoma hungarica Szabó, 1959 [SYNONYM SPECIES 9817:89NLZ nidx=null parent=8DFPW]
 + Pericoma hungarica Szabó, 1960 [SYNONYM SPECIES 9820:8YVHS nidx=null parent=8ZTMJ]
Pericoma pseudoexquisita
 - Pericoma pseudoexquisita Tonnoir, 1940 [SYNONYM SPECIES 9817:89NMZ nidx=null parent=8D8R6]
 + Pericoma pseudoexquisita Freeman, 1950 [SYNONYM SPECIES 9820:8YVHQ nidx=null parent=8Z48H]
Pericoma rotunda
 - Pericoma rotunda Krek, 1970 [SYNONYM SPECIES 9817:8D8WH nidx=null parent=6XMD9]
 + Pericoma rotunda Krek, 1971 [SYNONYM SPECIES 9820:8YVHV nidx=null parent=8YVWJ]
Peripsychoda auriculata
 - Peripsychoda auriculata Curtis [ACCEPTED SPECIES 9817:4F3RX nidx=null]
 + Peripsychoda auriculata (Haliday, 1839) [ACCEPTED SPECIES 9820:8YVHZ nidx=null]
Peripsychoda nigritarsis
 - Peripsychoda nigritarsis Schrank [ACCEPTED SPECIES 9817:8D8XP nidx=null]
 + Peripsychoda nigritarsis Enderlein, 1937 [ACCEPTED SPECIES 9820:8YVJ2 nidx=null]
Periscelis nebulosa
 - Periscelis nebulosa Hennig, 1969 [ACCEPTED SPECIES 9817:89NP7 nidx=null]
 + Periscelis nebulosa Hendel, 1913 [SYNONYM SPECIES 9820:4F3WS nidx=null parent=8D8Y3]
Petaloproctus filifer
 - Petaloproctus filifer (Verrill, 1880) [ACCEPTED SPECIES 9817:776MR nidx=null]
 + Petaloproctus filifer (Verrill, 1879) [ACCEPTED SPECIES 9820:8YWWV nidx=null]
Petricola pholadiformis gracilis
 - Petricola pholadiformis gracilis van Regteren Altena, 1971 [SYNONYM SUBSPECIES 9817:7KK4M nidx=null parent=4FDSH]
 + Petricola pholadiformis gracilis Deshayes, 1853 [SYNONYM SUBSPECIES 9820:8YZPN nidx=null parent=4FDSH]
Phaibulamon stilipes
 - Phaibulamon stilipes P.K.L. Ng, 1992 [ACCEPTED SPECIES 9817:76VFS nidx=null]
 + Phaibulamon stilipes PKL Ng, 1992 [ACCEPTED SPECIES 9820:8YY97 nidx=null]
Phalium (Semicassis) vector
 - Phalium (Semicassis) vector R. T. Abbott, 1993 [SYNONYM SPECIES 9817:8Y86J nidx=null parent=4WG7M]
 + Phalium (Semicassis) vector R. T. Abbott, 1993 [SYNONYM SPECIES 9820:8Z6XP nidx=null parent=4WG7M]
Phaonia yunapicalis
 - Phaonia yunapicalis Fang & Fan, 1992 [ACCEPTED SPECIES 9817:8D9MJ nidx=null]
 + Phaonia yunapicalis Fang & Fan, 1998 [ACCEPTED SPECIES 9820:8YVJS nidx=null]
Pharaonus
 - Pharaonus Blanchard, 1851 [ACCEPTED GENUS 9817:6MVP nidx=null]
 + Pharaonus Blanchard, 1850 [ACCEPTED GENUS 9820:8YRTS nidx=null]
Pharaonus (Pharaonus)
 - Pharaonus (Pharaonus) Blanchard, 1851 [ACCEPTED SUBGENUS 9817:7Q89T nidx=null]
 + Pharaonus (Pharaonus) Blanchard, 1850 [ACCEPTED SUBGENUS 9820:8YRTT nidx=null]
Pharyngomyia picta
 - Pharyngomyia picta (Meigen, 1824) [ACCEPTED SPECIES 9817:4FVMP nidx=null]
 + Pharyngomyia picta (Wiedemann, 1824) [ACCEPTED SPECIES 9820:8YVJT nidx=null]
Phascolion
 - Phascolion Théel, 1875 [ACCEPTED SUBGENUS 9817:8W2BH nidx=null]
 + Phascolion Théel, 1875 [ACCEPTED SUBGENUS 9820:7PR8S nidx=null]
Pherbellia
 - Pherbellia [ACCEPTED SUBGENUS 9817:87JMS nidx=null]
 + Pherbellia [PROVISIONALLY_ACCEPTED GENUS 9820:8YQLJ nidx=null]
Philosepedon orientalis
 - Philosepedon orientalis Wagner, 1981 [ACCEPTED SPECIES 9817:4GD3X nidx=null]
 + Philosepedon orientalis Krek, 1977 [ACCEPTED SPECIES 9820:8YVJZ nidx=null]
Phora aterrima
 - Phora aterrima (Fabricius, 1794) [ACCEPTED SPECIES 9817:4GQB7 nidx=null]
 + Phora aterrima Strobl, 1906 [SYNONYM SPECIES 9820:8YVKC nidx=null parent=8CQLL]
Phora humilis
 - Phora humilis Keilbach, 1982 [ACCEPTED SPECIES 9817:8B2XZ nidx=null]
 + Phora humilis Wood, 1909 [SYNONYM SPECIES 9820:4GQCQ nidx=null parent=8CQQ8]
Phora parva
 - Phora parva Keilbach, 1982 [ACCEPTED SPECIES 9817:8DBMF nidx=null]
 + Phora parva Wood, 1909 [SYNONYM SPECIES 9820:8YVKJ nidx=null parent=8CRTB]
Phora simplex
 - Phora simplex Keilbach, 1982 [ACCEPTED SPECIES 9817:8DBN4 nidx=null]
 + Phora simplex Wood, 1910 [SYNONYM SPECIES 9820:8YVKN nidx=null parent=8CR4W]
Phora tarsalis
 - Phora tarsalis Keilbach, 1982 [ACCEPTED SPECIES 9817:8DBNJ nidx=null]
 + Phora tarsalis Wood, 1910 [SYNONYM SPECIES 9820:8YVKP nidx=null parent=8CS2B]
Phorbia neglecta
 - Phorbia neglecta Meade, 1883 [SYNONYM SPECIES 9817:8B362 nidx=null parent=8D6FV]
 + Phorbia neglecta Meade, 1883 [SYNONYM SPECIES 9820:4GRBD nidx=null parent=6TN8G]
Phryxe hirta
 - Phryxe hirta (Bigot, 1881) [ACCEPTED SPECIES 9817:4GWZ5 nidx=null]
 + Phryxe hirta (Bigot, 1880) [ACCEPTED SPECIES 9820:8YVL2 nidx=null]
Phyllophaga (Cnemarachis) apicalis
 - Phyllophaga (Cnemarachis) apicalis (Blanchard, 1851) [ACCEPTED SPECIES 9817:4H8RS nidx=null]
 + Phyllophaga (Cnemarachis) apicalis (Blanchard, 1850) [ACCEPTED SPECIES 9820:8YX7B nidx=null]
Phyllophaga (Phyllophaga) columbiana
 - Phyllophaga (Phyllophaga) columbiana (Blanchard, 1851) [ACCEPTED SPECIES 9817:4H8ZR nidx=null]
 + Phyllophaga (Phyllophaga) columbiana (Blanchard, 1850) [ACCEPTED SPECIES 9820:8YX7C nidx=null]
Phyllophaga (Phyllophaga) profunda
 - Phyllophaga (Phyllophaga) profunda (Blanchard, 1851) [ACCEPTED SPECIES 9817:6VFW7 nidx=null]
 + Phyllophaga (Phyllophaga) profunda (Blanchard, 1850) [ACCEPTED SPECIES 9820:8YX7D nidx=null]
Phyllophaga (Phyllophaga) uniformis
 - Phyllophaga (Phyllophaga) uniformis (Blanchard, 1851) [ACCEPTED SPECIES 9817:6VFWL nidx=null]
 + Phyllophaga (Phyllophaga) uniformis (Blanchard, 1850) [ACCEPTED SPECIES 9820:8YX7F nidx=null]
Phyllophaga (Phytalus) picea
 - Phyllophaga (Phytalus) picea (Blanchard, 1851) [ACCEPTED SPECIES 9817:4H9J5 nidx=null]
 + Phyllophaga (Phytalus) picea (Blanchard, 1850) [ACCEPTED SPECIES 9820:8YX7G nidx=null]
Phyllophaga (Tostegoptera)
 - Phyllophaga (Tostegoptera) Blanchard, 1851 [ACCEPTED SUBGENUS 9817:8FFP nidx=null]
 + Phyllophaga (Tostegoptera) Blanchard, 1850 [ACCEPTED SUBGENUS 9820:8YX2Z nidx=null]
Physocephala obscura
 - Physocephala obscura Kröber [ACCEPTED SPECIES 9817:8BBQ9 nidx=null]
 + Physocephala obscura Kröber, 1915 [SYNONYM SPECIES 9820:4HHHT nidx=null parent=4HHJG]
Phytagromyza
 - Phytagromyza [ACCEPTED GENUS 9817:89R4S nidx=null]
 + Phytagromyza [ACCEPTED SUBGENUS 9820:8YQLN nidx=null]
Phytalus apicalis
 - Phytalus apicalis Blanchard, 1851 [SYNONYM SPECIES 9817:4HJTY nidx=null parent=4H8RS]
 + Phytalus apicalis Blanchard, 1850 [SYNONYM SPECIES 9820:8YX7Q nidx=null parent=8YX7B]
Phytalus picea
 - Phytalus picea Blanchard, 1851 [SYNONYM SPECIES 9817:4HJV9 nidx=null parent=4H9J5]
 + Phytalus picea Blanchard, 1850 [SYNONYM SPECIES 9820:8YX7R nidx=null parent=8YX7G]
Phytolaema elaphocera
 - Phytolaema elaphocera Redtenbacher, 1867 [SYNONYM SPECIES 9817:4HMBL nidx=null parent=4HK3W]
 + Phytolaema elaphocera Redtenbacher, 1868 [SYNONYM SPECIES 9820:8YX7S nidx=null parent=4HK3W]
Phytomia aurigera
 - Phytomia aurigera Bezzi, 1915 [SYNONYM SPECIES 9817:8BDRQ nidx=null parent=8DCFX]
 + Phytomia aurigera Bezzi, 1915 [ACCEPTED SPECIES 9820:6VHKW nidx=null]
Phytomia bezzii
 - Phytomia bezzii Curran, 1927 [SYNONYM SPECIES 9817:8BDRT nidx=null parent=8DCG7]
 + Phytomia bezzii Curran, 1927 [ACCEPTED SPECIES 9820:4HMGF nidx=null]
Phytomia fucoides
 - Phytomia fucoides Bezzi, 1915 [SYNONYM SPECIES 9817:8BDRX nidx=null parent=8DCGH]
 + Phytomia fucoides Bezzi, 1915 [ACCEPTED SPECIES 9820:4HMGQ nidx=null]
Phytomia fusca
 - Phytomia fusca Hull, 1941 [SYNONYM SPECIES 9817:8BDRY nidx=null parent=8DCGJ]
 + Phytomia fusca Hull, 1941 [ACCEPTED SPECIES 9820:4HMGR nidx=null]
Phytomia pubipennis
 - Phytomia pubipennis Bezzi, 1915 [SYNONYM SPECIES 9817:8BDS2 nidx=null parent=8DCGP]
 + Phytomia pubipennis Bezzi, 1915 [ACCEPTED SPECIES 9820:4HMGY nidx=null]
Phytomia serena
 - Phytomia serena Curran, 1927 [SYNONYM SPECIES 9817:8BDS3 nidx=null parent=8DCG4]
 + Phytomia serena Curran, 1927 [ACCEPTED SPECIES 9820:4HMGZ nidx=null]
Phytomia varians
 - Phytomia varians Curran, 1927 [SYNONYM SPECIES 9817:8BDS9 nidx=null parent=8DCGR]
 + Phytomia varians Curran, 1927 [ACCEPTED SPECIES 9820:4HMH3 nidx=null]
Phytomyza ramosa
 - Phytomyza ramosa Hendel, 1935 [ACCEPTED SPECIES 9817:8DCNW nidx=null]
 + Phytomyza ramosa Hendel, 1923 [SYNONYM SPECIES 9820:8YVLR nidx=null parent=4HN27]
Phytomyza sphondylii
 - Phytomyza sphondylii Robineau-Desvoidy, 1851 [ACCEPTED SPECIES 9817:4HN8K nidx=null]
 - Phytomyza sphondylii Goureau [PROVISIONALLY_ACCEPTED SPECIES 9817:8BDZV nidx=null]
 + Phytomyza sphondylii Hendel, 1935 [SYNONYM SPECIES 9820:8YVLV nidx=null parent=4HN8R]
Pilumnus lunatus
 - Pilumnus lunatus Lucas, 1844 [in H. Milne Edwards & Lucas, 1842-1844] [SYNONYM SPECIES 9817:77JKW nidx=null parent=3L72W]
 + Pilumnus lunatus Lucas in H. Milne Edwards & Lucas, 1844 [SYNONYM SPECIES 9820:8YYB9 nidx=null parent=3L72W]
Pilumnus murphyi
 - Pilumnus murphyi P.K.L. Ng, 1988 [ACCEPTED SPECIES 9817:4HVVG nidx=null]
 + Pilumnus murphyi PKL Ng, 1988 [ACCEPTED SPECIES 9820:8YYBB nidx=null]
Pilumnus serenei
 - Pilumnus serenei P.K.L. Ng, 1988 [ACCEPTED SPECIES 9817:4HVX3 nidx=null]
 + Pilumnus serenei PKL Ng, 1988 [ACCEPTED SPECIES 9820:8YYBC nidx=null]
Pilumnus striatus
 - Pilumnus striatus de Man, 1888 [in de Man, 1887-1888] [SYNONYM SPECIES 9817:8VFB7 nidx=null parent=5BBQF]
 + Pilumnus striatus de Man, 1888 [SYNONYM SPECIES 9820:8YYBD nidx=null parent=5BBQF]
Pilumnus takedai
 - Pilumnus takedai P.K.L. Ng, 1988 [ACCEPTED SPECIES 9817:4HVXM nidx=null]
 + Pilumnus takedai PKL Ng, 1988 [ACCEPTED SPECIES 9820:8YYBF nidx=null]
Pilumnus villosus
 - Pilumnus villosus Risso, 1827 in [Risso, 1826-1827] [SYNONYM SPECIES 9817:4HVYD nidx=null parent=4HVYC]
 + Pilumnus villosus Risso, 1827 [SYNONYM SPECIES 9820:8YYBG nidx=null parent=4HVYC]
Pinnotheroidea
 - Pinnotheroidea De Haan, 1833 [in De Haan, 1833-1850] [ACCEPTED SUPERFAMILY 9817:7NFQQ nidx=null]
 + Pinnotheroidea De Haan, 1833 [ACCEPTED SUPERFAMILY 9820:5HZ nidx=null]
Piophila affinis
 - Piophila affinis Meigen, 1830 [SYNONYM SPECIES 9817:88Y4T nidx=null parent=6W9XG]
 + Piophila affinis Meigen, 1830 [SYNONYM SPECIES 9820:4J2VZ nidx=null parent=6W9XG]
Piophila morator
 - Piophila morator Melander, 1924 [SYNONYM SPECIES 9817:88Y4Y nidx=null parent=6W9XG]
 + Piophila morator Melander, 1924 [SYNONYM SPECIES 9820:4J2X3 nidx=null parent=6W9XG]
Piophila nigrohalterata
 - Piophila nigrohalterata Duda, 1924 [SYNONYM SPECIES 9817:8BJ7M nidx=null parent=6W9XG]
 + Piophila nigrohalterata Duda, 1924 [SYNONYM SPECIES 9820:4J2X9 nidx=null parent=6W9XG]
Piophila occipitalis
 - Piophila occipitalis Melander & Spuler, 1917 [SYNONYM SPECIES 9817:88Y56 nidx=null parent=6W9XG]
 + Piophila occipitalis Melander & Spuler, 1917 [SYNONYM SPECIES 9820:4J2XD nidx=null parent=6W9XG]
Piophila privigna
 - Piophila privigna Melander, 1924 [SYNONYM SPECIES 9817:88Y58 nidx=null parent=6W9XG]
 + Piophila privigna Melander, 1924 [SYNONYM SPECIES 9820:4J2XQ nidx=null parent=6W9XG]
Pipiza austriaca
 - Pipiza austriaca Meigen [ACCEPTED SPECIES 9817:8BJBT nidx=null]
 + Pipiza austriaca Meigen, 1822 [SYNONYM SPECIES 9820:4J6ML nidx=null parent=4J6NH]
Pipunculus nitidiventris
 - Pipunculus nitidiventris Loew [ACCEPTED SPECIES 9817:88Y7Q nidx=null]
 + Pipunculus nitidiventris Loew, 1866 [SYNONYM SPECIES 9820:4J7KR nidx=null parent=77L3H]
Placoceratias barrettoi
 - Placoceratias barrettoi Lane, 1948 [SYNONYM SPECIES 9817:8BLFB nidx=null parent=8DDH9]
 + Placoceratias barrettoi (Lane, 1948) [ACCEPTED SPECIES 9820:4JDPS nidx=null]
Placoceratias imitans
 - Placoceratias imitans Lane, 1948 [SYNONYM SPECIES 9817:8BLFG nidx=null parent=8DDHB]
 + Placoceratias imitans (Lane, 1948) [ACCEPTED SPECIES 9820:4JDPX nidx=null]
Placoceratias longimanus
 - Placoceratias longimanus Williston, 1896 [SYNONYM SPECIES 9817:8BLFH nidx=null parent=8DDHC]
 + Placoceratias longimanus (Williston, 1896) [ACCEPTED SPECIES 9820:4JDPY nidx=null]
Placoceratias uaracui
 - Placoceratias uaracui Lane, 1950 [SYNONYM SPECIES 9817:8BLFK nidx=null parent=8DDHD]
 + Placoceratias uaracui (Lane, 1950) [ACCEPTED SPECIES 9820:4JDPZ nidx=null]
Plagiocera maculipennis
 - Plagiocera maculipennis Loew, 1858 [SYNONYM SPECIES 9817:8BM3N nidx=null parent=8FGYP]
 + Plagiocera maculipennis Loew, 1858 [SYNONYM SPECIES 9820:4JF72 nidx=null parent=6YFHV]
Plagiorhynchus
 - Plagiorhynchus Lühe, 1911 [ACCEPTED SUBGENUS 9817:8W2GW nidx=null]
 + Plagiorhynchus Lühe, 1911 [ACCEPTED SUBGENUS 9820:7PSG8 nidx=null]
Planktonemertes agassizi
 - Planktonemertes agassizi ? [SYNONYM SPECIES 9817:8WV25 nidx=null parent=8549B]
 + Planktonemertes agassizi ? [SYNONYM SPECIES 9820:8YYBY nidx=null parent=8549B]
Platycheirus alpigenus
 - Platycheirus alpigenus Barkalov & Nielsen, 2008 [SYNONYM SPECIES 9817:8BNKL nidx=null parent=8DDRW]
 + Platycheirus alpigenus Barkalov & Nielsen, 2008 [ACCEPTED SPECIES 9820:4JPDZ nidx=null]
Platycheirus alpinus
 - Platycheirus alpinus Strobl, 1893 [SYNONYM SPECIES 9817:8BNKN nidx=null parent=8DDW2]
 + Platycheirus alpinus Strobl, 1893 [SYNONYM SPECIES 9820:77PQ6 nidx=null parent=4JPF9]
Platycheirus altaicus
 - Platycheirus altaicus Barkalov & Nielsen, 2008 [SYNONYM SPECIES 9817:8BNKP nidx=null parent=8DDRX]
 + Platycheirus altaicus Barkalov & Nielsen, 2008 [ACCEPTED SPECIES 9820:77Q26 nidx=null]
Platycheirus altomontis
 - Platycheirus altomontis Merlin & Nielsen, 2004 [SYNONYM SPECIES 9817:8BNKR nidx=null parent=8DDTS]
 + Platycheirus altomontis Merlin & Nielsen, 2004 [ACCEPTED SPECIES 9820:78226 nidx=null]
Platycheirus atlasi
 - Platycheirus atlasi Kassebeer, 1998 [SYNONYM SPECIES 9817:8BNKW nidx=null parent=8DDVP]
 + Platycheirus atlasi Kassebeer, 1998 [ACCEPTED SPECIES 9820:6VPQ8 nidx=null]
Platycheirus atratus
 - Platycheirus atratus Barkalov & Nielsen, 2008 [SYNONYM SPECIES 9817:8BNKY nidx=null parent=8DDRZ]
 + Platycheirus atratus Barkalov & Nielsen, 2008 [ACCEPTED SPECIES 9820:6W228 nidx=null]
Platycheirus aurolateralis
 - Platycheirus aurolateralis Stubbs, 2002 [SYNONYM SPECIES 9817:8BNKZ nidx=null parent=8DDVQ]
 + Platycheirus aurolateralis Stubbs, 2002 [ACCEPTED SPECIES 9820:77PPW nidx=null]
Platycheirus barkalovi
 - Platycheirus barkalovi Violovich, 1980 [ACCEPTED SPECIES 9817:8BNL2 nidx=null]
 + Platycheirus barkalovi Mutin, 1999 [ACCEPTED SPECIES 9820:77PQ8 nidx=null]
Platycheirus bigelowi
 - Platycheirus bigelowi Curran, 1927 [SYNONYM SPECIES 9817:88YFH nidx=null parent=8DDXT]
 + Platycheirus bigelowi Curran, 1927 [SYNONYM SPECIES 9820:6VPPV nidx=null parent=4JPJG]
Platycheirus boreomonatus
 - Platycheirus boreomonatus Nielsen, 1981 [SYNONYM SPECIES 9817:88YFJ nidx=null parent=8DDWH]
 + Platycheirus boreomonatus Nielsen, 1981 [SYNONYM SPECIES 9820:6VQ27 nidx=null parent=4JPG9]
Platycheirus brunnifrons
 - Platycheirus brunnifrons Nielsen, 2004 [SYNONYM SPECIES 9817:8BNL4 nidx=null parent=8DDTT]
 + Platycheirus brunnifrons Nielsen, 2004 [ACCEPTED SPECIES 9820:6W227 nidx=null]
Platycheirus caesius
 - Platycheirus caesius Nielsen & Stuke, 2004 [SYNONYM SPECIES 9817:8BNL5 nidx=null parent=8DDTV]
 + Platycheirus caesius Nielsen & Stuke, 2004 [ACCEPTED SPECIES 9820:77PPV nidx=null]
Platycheirus cejensis
 - Platycheirus cejensis Kuznetzov, 1987 [SYNONYM SPECIES 9817:8BNL9 nidx=null parent=8DDVV]
 + Platycheirus cejensis Kuznetzov, 1987 [ACCEPTED SPECIES 9820:78227 nidx=null]
Platycheirus chaetopodus
 - Platycheirus chaetopodus Williston, 1887 [SYNONYM SPECIES 9817:88YFK nidx=null parent=8DDYC]
 + Platycheirus chaetopodus Williston, 1887 [SYNONYM SPECIES 9820:77PPY nidx=null parent=4JPKD]
Platycheirus cheilosiaeformis
 - Platycheirus cheilosiaeformis Smit & Barkalov, 2008 [SYNONYM SPECIES 9817:8BNLC nidx=null parent=8DDS5]
 + Platycheirus cheilosiaeformis Smit & Barkalov, 2008 [ACCEPTED SPECIES 9820:6VQ29 nidx=null]
Platycheirus chirosphena
 - Platycheirus chirosphena Hull, 1944 [SYNONYM SPECIES 9817:88YFL nidx=null parent=8DDWM]
 + Platycheirus chirosphena Hull, 1944 [SYNONYM SPECIES 9820:4JPF3 nidx=null parent=4JPGK]
Platycheirus ciliatus
 - Platycheirus ciliatus Bigot, 1884 [SYNONYM SPECIES 9817:88YFM nidx=null parent=8DDVX]
 + Platycheirus ciliatus Bigot, 1884 [ACCEPTED SPECIES 9820:4JPF4 nidx=null]
Platycheirus ciliger
 - Platycheirus ciliger Loew, 1856 [SYNONYM SPECIES 9817:88YFN nidx=null parent=8DDVY]
 + Platycheirus ciliger Loew, 1856 [ACCEPTED SPECIES 9820:4JPF5 nidx=null]
Platycheirus clausseni
 - Platycheirus clausseni Nielsen, 2004 [SYNONYM SPECIES 9817:8BNLG nidx=null parent=8DDTW]
 + Platycheirus clausseni Nielsen, 2004 [ACCEPTED SPECIES 9820:4JPF8 nidx=null]
Platycheirus coracinus
 - Platycheirus coracinus Vockeroth, 1990 [SYNONYM SPECIES 9817:88YFP nidx=null parent=8DDW3]
 + Platycheirus coracinus Vockeroth, 1990 [ACCEPTED SPECIES 9820:4JPFD nidx=null]
Platycheirus erraticus
 - Platycheirus erraticus Curran, 1927 [SYNONYM SPECIES 9817:88YFQ nidx=null parent=8DDWM]
 + Platycheirus erraticus Curran, 1927 [SYNONYM SPECIES 9820:4JPFN nidx=null parent=4JPGK]
Platycheirus fallax
 - Platycheirus fallax Barkalov & Nielsen, 2008 [SYNONYM SPECIES 9817:8BNLM nidx=null parent=8DDSC]
 + Platycheirus fallax Barkalov & Nielsen, 2008 [ACCEPTED SPECIES 9820:4JPFP nidx=null]
Platycheirus fasciculatus
 - Platycheirus fasciculatus Loew, 1856 [SYNONYM SPECIES 9817:8BNLN nidx=null parent=8DDW7]
 + Platycheirus fasciculatus Loew, 1856 [ACCEPTED SPECIES 9820:4JPFQ nidx=null]
Platycheirus felix
 - Platycheirus felix Curran, 1931 [SYNONYM SPECIES 9817:88YFR nidx=null parent=8DDWP]
 + Platycheirus felix Curran, 1931 [SYNONYM SPECIES 9820:4JPFR nidx=null parent=4JPGM]
Platycheirus femineum
 - Platycheirus femineum Curran, 1931 [SYNONYM SPECIES 9817:88YFS nidx=null parent=8DDW8]
 + Platycheirus femineum Curran, 1931 [ACCEPTED SPECIES 9820:4JPFS nidx=null]
Platycheirus fjellbergi
 - Platycheirus fjellbergi Nielsen, 1974 [SYNONYM SPECIES 9817:88YFT nidx=null parent=8DDV6]
 + Platycheirus fjellbergi Nielsen, 1974 [SYNONYM SPECIES 9820:4JPFV nidx=null parent=4JPH8]
Platycheirus flabella
 - Platycheirus flabella Hull, 1944 [SYNONYM SPECIES 9817:88YFV nidx=null parent=8DDW9]
 + Platycheirus flabella Hull, 1944 [ACCEPTED SPECIES 9820:4JPFW nidx=null]
Platycheirus formosanus
 - Platycheirus formosanus Shiraki, 1930 [SYNONYM SPECIES 9817:8BNLQ nidx=null parent=8DDWC]
 + Platycheirus formosanus Shiraki, 1930 [ACCEPTED SPECIES 9820:4JPFY nidx=null]
Platycheirus frontosus
 - Platycheirus frontosus Lovett, 1919 [SYNONYM SPECIES 9817:88YFW nidx=null parent=8DDVX]
 + Platycheirus frontosus Lovett, 1919 [SYNONYM SPECIES 9820:4JPFZ nidx=null parent=4JPF4]
Platycheirus fuscitarsis
 - Platycheirus fuscitarsis Barkalov & Nielsen, 2007 [SYNONYM SPECIES 9817:8BNLV nidx=null parent=8DDWG]
 + Platycheirus fuscitarsis Barkalov & Nielsen, 2007 [ACCEPTED SPECIES 9820:4JPG5 nidx=null]
Platycheirus goeldlini
 - Platycheirus goeldlini Nielsen, 2004 [SYNONYM SPECIES 9817:8BNLW nidx=null parent=8DDV2]
 + Platycheirus goeldlini Nielsen, 2004 [ACCEPTED SPECIES 9820:4JPG7 nidx=null]
Platycheirus groenlandicus
 - Platycheirus groenlandicus Curran, 1927 [SYNONYM SPECIES 9817:88YFX nidx=null parent=8DDWH]
 + Platycheirus groenlandicus Curran, 1927 [ACCEPTED SPECIES 9820:4JPG9 nidx=null]
Platycheirus gunillae
 - Platycheirus gunillae Barkalov & Nielsen, 2008 [SYNONYM SPECIES 9817:8BNLY nidx=null parent=8DDSF]
 + Platycheirus gunillae Barkalov & Nielsen, 2008 [ACCEPTED SPECIES 9820:77Q29 nidx=null]
Platycheirus hesperius
 - Platycheirus hesperius Vockeroth, 1990 [SYNONYM SPECIES 9817:8BNLZ nidx=null parent=8DDSG]
 + Platycheirus hesperius Vockeroth, 1990 [ACCEPTED SPECIES 9820:4JPGC nidx=null]
Platycheirus himalayensis
 - Platycheirus himalayensis Brunetti, 1915 [SYNONYM SPECIES 9817:8BNM3 nidx=null parent=8DDWJ]
 + Platycheirus himalayensis Brunetti, 1915 [ACCEPTED SPECIES 9820:4JPGD nidx=null]
Platycheirus hispidipes
 - Platycheirus hispidipes Vockeroth, 1990 [SYNONYM SPECIES 9817:88YFY nidx=null parent=8DDWK]
 + Platycheirus hispidipes Vockeroth, 1990 [ACCEPTED SPECIES 9820:4JPGF nidx=null]
Platycheirus immaculatus
 - Platycheirus immaculatus Ôhara, 1980 [SYNONYM SPECIES 9817:8BNM6 nidx=null parent=8DDWN]
 + Platycheirus immaculatus Ôhara, 1980 [ACCEPTED SPECIES 9820:4JPGL nidx=null]
Platycheirus inversus
 - Platycheirus inversus Ide, 1926 [SYNONYM SPECIES 9817:88YG2 nidx=null parent=8DDWQ]
 + Platycheirus inversus Ide, 1926 [ACCEPTED SPECIES 9820:4JPGP nidx=null]
Platycheirus kashmiricus
 - Platycheirus kashmiricus Nielsen, 2004 [SYNONYM SPECIES 9817:8BNMC nidx=null parent=8DDV4]
 + Platycheirus kashmiricus Nielsen, 2004 [ACCEPTED SPECIES 9820:6VPPZ nidx=null]
Platycheirus kittilaensis
 - Platycheirus kittilaensis Dušek & Láska, 1982 [SYNONYM SPECIES 9817:8BNMD nidx=null parent=8DDWX]
 + Platycheirus kittilaensis Dušek & Láska, 1982 [ACCEPTED SPECIES 9820:4JPGX nidx=null]
Platycheirus latens
 - Platycheirus latens Mutin, 1999 [SYNONYM SPECIES 9817:8BNMJ nidx=null parent=8DDWY]
 + Platycheirus latens Mutin, 1999 [ACCEPTED SPECIES 9820:4JPGZ nidx=null]
Platycheirus latitarsis
 - Platycheirus latitarsis Vockeroth, 1990 [SYNONYM SPECIES 9817:88YG3 nidx=null parent=8DDX2]
 + Platycheirus latitarsis Vockeroth, 1990 [ACCEPTED SPECIES 9820:4JPH3 nidx=null]
Platycheirus longicornis
 - Platycheirus longicornis Peck, 1979 [SYNONYM SPECIES 9817:8BNMM nidx=null parent=8DDX3]
 + Platycheirus longicornis Peck, 1979 [ACCEPTED SPECIES 9820:4JPH6 nidx=null]
Platycheirus macrocephalus
 - Platycheirus macrocephalus Bagatshanova, 1980 [SYNONYM SPECIES 9817:8BNMP nidx=null parent=8DDX4]
 + Platycheirus macrocephalus Bagatshanova, 1980 [ACCEPTED SPECIES 9820:4JPHC nidx=null]
Platycheirus magadanensis
 - Platycheirus magadanensis Mutin, 1999 [SYNONYM SPECIES 9817:8BNMQ nidx=null parent=8DDX5]
 + Platycheirus magadanensis Mutin, 1999 [ACCEPTED SPECIES 9820:4JPHD nidx=null]
Platycheirus marokkanus
 - Platycheirus marokkanus Kassebeer, 1998 [SYNONYM SPECIES 9817:8BNMR nidx=null parent=8DDX7]
 + Platycheirus marokkanus Kassebeer, 1998 [ACCEPTED SPECIES 9820:4JPHF nidx=null]
Platycheirus melanopsis
 - Platycheirus melanopsis Loew, 1856 [SYNONYM SPECIES 9817:8BNMT nidx=null parent=8DDX8]
 + Platycheirus melanopsis Loew, 1856 [ACCEPTED SPECIES 9820:4JPHG nidx=null]
Platycheirus meridimontanus
 - Platycheirus meridimontanus Nielsen, 2004 [SYNONYM SPECIES 9817:8BNMV nidx=null parent=8DDV7]
 + Platycheirus meridimontanus Nielsen, 2004 [ACCEPTED SPECIES 9820:4JPHH nidx=null]
Platycheirus metallicus
 - Platycheirus metallicus Barkalov & Nielsen, 2004 [SYNONYM SPECIES 9817:8BNMW nidx=null parent=8DDV8]
 + Platycheirus metallicus Barkalov & Nielsen, 2004 [ACCEPTED SPECIES 9820:4JPHJ nidx=null]
Platycheirus modestus
 - Platycheirus modestus Ide, 1926 [SYNONYM SPECIES 9817:88YG4 nidx=null parent=8DDX9]
 + Platycheirus modestus Ide, 1926 [ACCEPTED SPECIES 9820:4JPHN nidx=null]
Platycheirus nearcticus
 - Platycheirus nearcticus Vockeroth, 1990 [SYNONYM SPECIES 9817:88YG5 nidx=null parent=8DDXG]
 + Platycheirus nearcticus Vockeroth, 1990 [ACCEPTED SPECIES 9820:77PP3 nidx=null]
Platycheirus nielseni
 - Platycheirus nielseni Vockeroth, 1990 [SYNONYM SPECIES 9817:88YG6 nidx=null parent=8DDXH]
 + Platycheirus nielseni Vockeroth, 1990 [ACCEPTED SPECIES 9820:4JPHV nidx=null]
Platycheirus nodosus
 - Platycheirus nodosus Curran, 1923 [SYNONYM SPECIES 9817:88YG7 nidx=null parent=8DDXK]
 + Platycheirus nodosus Curran, 1923 [ACCEPTED SPECIES 9820:4JPHY nidx=null]
Platycheirus normae
 - Platycheirus normae Fluke, 1939 [SYNONYM SPECIES 9817:88YG8 nidx=null parent=8DDXL]
 + Platycheirus normae Fluke, 1939 [ACCEPTED SPECIES 9820:4JPHZ nidx=null]
Platycheirus occidentalis
 - Platycheirus occidentalis Curran, 1927 [SYNONYM SPECIES 9817:88YG9 nidx=null parent=8DDVF]
 + Platycheirus occidentalis Curran, 1927 [SYNONYM SPECIES 9820:4JPJ5 nidx=null parent=4JPDY]
Platycheirus occultus
 - Platycheirus occultus Goeldlin, Maibach & Speight, 1990 [SYNONYM SPECIES 9817:8BNN4 nidx=null parent=8DDXN]
 + Platycheirus occultus Goeldlin, Maibach & Speight, 1990 [ACCEPTED SPECIES 9820:4JPJ6 nidx=null]
Platycheirus octavus
 - Platycheirus octavus Vockeroth, 1990 [SYNONYM SPECIES 9817:88YGB nidx=null parent=8DDXP]
 + Platycheirus octavus Vockeroth, 1990 [ACCEPTED SPECIES 9820:4JPJ7 nidx=null]
Platycheirus orarius
 - Platycheirus orarius Vockeroth, 1990 [SYNONYM SPECIES 9817:88YGC nidx=null parent=8DDXQ]
 + Platycheirus orarius Vockeroth, 1990 [ACCEPTED SPECIES 9820:4JPJ8 nidx=null]
Platycheirus oreadis
 - Platycheirus oreadis Vockeroth, 1990 [SYNONYM SPECIES 9817:88YGD nidx=null parent=8DDXR]
 + Platycheirus oreadis Vockeroth, 1990 [ACCEPTED SPECIES 9820:4JPJ9 nidx=null]
Platycheirus ovalis
 - Platycheirus ovalis Becker, 1921 [SYNONYM SPECIES 9817:8BNN6 nidx=null parent=8DDXT]
 + Platycheirus ovalis Becker, 1921 [SYNONYM SPECIES 9820:4JPJB nidx=null parent=4JPJG]
Platycheirus palmulosus
 - Platycheirus palmulosus Snow, 1895 [SYNONYM SPECIES 9817:88YGF nidx=null parent=8DDWP]
 + Platycheirus palmulosus Snow, 1895 [SYNONYM SPECIES 9820:4JPJD nidx=null parent=4JPGM]
Platycheirus parmatus
 - Platycheirus parmatus Rondani, 1857 [SYNONYM SPECIES 9817:88YGG nidx=null parent=8DDXT]
 + Platycheirus parmatus Rondani, 1857 [ACCEPTED SPECIES 9820:4JPJG nidx=null]
Platycheirus pauper
 - Platycheirus pauper Hull, 1944 [SYNONYM SPECIES 9817:88YGH nidx=null parent=8DDVF]
 + Platycheirus pauper Hull, 1944 [SYNONYM SPECIES 9820:4JPJH nidx=null parent=4JPDY]
Platycheirus peckae
 - Platycheirus peckae Bagatshanova, 1980 [SYNONYM SPECIES 9817:8BNN8 nidx=null parent=8DDXV]
 + Platycheirus peckae Bagatshanova, 1980 [ACCEPTED SPECIES 9820:4JPJJ nidx=null]
Platycheirus peltatoides
 - Platycheirus peltatoides Curran, 1923 [SYNONYM SPECIES 9817:88YGJ nidx=null parent=8DDXW]
 + Platycheirus peltatoides Curran, 1923 [ACCEPTED SPECIES 9820:4JPJK nidx=null]
Platycheirus pennipes
 - Platycheirus pennipes Ôhara, 1980 [SYNONYM SPECIES 9817:8BNNB nidx=null parent=8DDXY]
 + Platycheirus pennipes Ôhara, 1980 [ACCEPTED SPECIES 9820:4JPJM nidx=null]
Platycheirus pilatus
 - Platycheirus pilatus Vockeroth, 1990 [SYNONYM SPECIES 9817:88YGK nidx=null parent=8DDY2]
 + Platycheirus pilatus Vockeroth, 1990 [ACCEPTED SPECIES 9820:4JPJR nidx=null]
Platycheirus protrusus
 - Platycheirus protrusus Vockeroth, 1990 [SYNONYM SPECIES 9817:88YGL nidx=null parent=8DDY4]
 + Platycheirus protrusus Vockeroth, 1990 [ACCEPTED SPECIES 9820:6VPP5 nidx=null]
Platycheirus pulcherum
 - Platycheirus pulcherum Mutin, 1999 [SYNONYM SPECIES 9817:8BNNF nidx=null parent=8DDY5]
 + Platycheirus pulcherum Mutin, 1999 [ACCEPTED SPECIES 9820:4JPJV nidx=null]
Platycheirus pullatus
 - Platycheirus pullatus Vockeroth, 1990 [SYNONYM SPECIES 9817:8BNNG nidx=null parent=8DDY6]
 + Platycheirus pullatus Vockeroth, 1990 [ACCEPTED SPECIES 9820:4JPJW nidx=null]
Platycheirus ramsarensis
 - Platycheirus ramsarensis Goeldlin, Maibach & Speight, 1990 [SYNONYM SPECIES 9817:8BNNJ nidx=null parent=8DDY8]
 + Platycheirus ramsarensis Goeldlin, Maibach & Speight, 1990 [ACCEPTED SPECIES 9820:4JPJZ nidx=null]
Platycheirus rufigaster
 - Platycheirus rufigaster Vockeroth, 1990 [SYNONYM SPECIES 9817:88YGM nidx=null parent=8DDZ5]
 + Platycheirus rufigaster Vockeroth, 1990 [ACCEPTED SPECIES 9820:4JPK6 nidx=null]
Platycheirus russatus
 - Platycheirus russatus Vockeroth, 1990 [SYNONYM SPECIES 9817:8BNNN nidx=null parent=8DDST]
 + Platycheirus russatus Vockeroth, 1990 [ACCEPTED SPECIES 9820:4JPK8 nidx=null]
Platycheirus sabulicola
 - Platycheirus sabulicola Vockeroth, 1990 [SYNONYM SPECIES 9817:8BNNQ nidx=null parent=8DDSV]
 + Platycheirus sabulicola Vockeroth, 1990 [ACCEPTED SPECIES 9820:4JPK9 nidx=null]
Platycheirus scamboides
 - Platycheirus scamboides Curran, 1927 [SYNONYM SPECIES 9817:88YGP nidx=null parent=8DDYB]
 + Platycheirus scamboides Curran, 1927 [ACCEPTED SPECIES 9820:4JPKC nidx=null]
Platycheirus setipes
 - Platycheirus setipes Vockeroth, 1990 [SYNONYM SPECIES 9817:8BNNT nidx=null parent=8DDYF]
 + Platycheirus setipes Vockeroth, 1990 [ACCEPTED SPECIES 9820:4JPKG nidx=null]
Platycheirus setitarsis
 - Platycheirus setitarsis Vockeroth, 1990 [SYNONYM SPECIES 9817:88YGQ nidx=null parent=8DDSY]
 + Platycheirus setitarsis Vockeroth, 1990 [ACCEPTED SPECIES 9820:4JPKH nidx=null]
Platycheirus sibiricus
 - Platycheirus sibiricus Barkalov & Nielsen, 2007 [SYNONYM SPECIES 9817:8BNNW nidx=null parent=8DDYG]
 + Platycheirus sibiricus Barkalov & Nielsen, 2007 [ACCEPTED SPECIES 9820:4JPKJ nidx=null]
Platycheirus sigiktae
 - Platycheirus sigiktae Mutin, 1999 [SYNONYM SPECIES 9817:8BNNX nidx=null parent=8DDYH]
 + Platycheirus sigiktae Mutin, 1999 [ACCEPTED SPECIES 9820:4JPKK nidx=null]
Platycheirus silesicus
 - Platycheirus silesicus Enderlein, 1938 [SYNONYM SPECIES 9817:8BNNY nidx=null parent=8DDYJ]
 + Platycheirus silesicus Enderlein, 1938 [ACCEPTED SPECIES 9820:4JPKL nidx=null]
Platycheirus similis
 - Platycheirus similis Barkalov & Nielsen, 2007 [SYNONYM SPECIES 9817:8BNP2 nidx=null parent=8DDYK]
 + Platycheirus similis Barkalov & Nielsen, 2007 [ACCEPTED SPECIES 9820:4JPKM nidx=null]
Platycheirus spathulatus
 - Platycheirus spathulatus Rondani, 1857 [SYNONYM SPECIES 9817:8BNP3 nidx=null parent=8DDYN]
 + Platycheirus spathulatus Rondani, 1857 [SYNONYM SPECIES 9820:4JPKN nidx=null parent=4JPKV]
Platycheirus speighti
 - Platycheirus speighti Doczkal, Stuke & Goeldlin, 2003 [SYNONYM SPECIES 9817:8BNP4 nidx=null parent=8DDYL]
 + Platycheirus speighti Dockzal, Stuke & Goeldlin [ACCEPTED SPECIES 9820:4JPKP nidx=null]
Platycheirus spinipes
 - Platycheirus spinipes Vockeroth, 1990 [SYNONYM SPECIES 9817:88YGR nidx=null parent=8DDSZ]
 + Platycheirus spinipes Vockeroth, 1990 [ACCEPTED SPECIES 9820:4JPKQ nidx=null]
Platycheirus splendidus
 - Platycheirus splendidus Rotheray, 1998 [SYNONYM SPECIES 9817:8BNP6 nidx=null parent=8DDYM]
 + Platycheirus splendidus Rotheray, 1998 [ACCEPTED SPECIES 9820:4JPKR nidx=null]
Platycheirus stegnoides
 - Platycheirus stegnoides Vockeroth, 1990 [SYNONYM SPECIES 9817:88YGS nidx=null parent=8DDT3]
 + Platycheirus stegnoides Vockeroth, 1990 [ACCEPTED SPECIES 9820:4JPKT nidx=null]
Platycheirus striatus
 - Platycheirus striatus Vockeroth, 1990 [SYNONYM SPECIES 9817:88YGT nidx=null parent=8DDT5]
 + Platycheirus striatus Vockeroth, 1990 [ACCEPTED SPECIES 9820:4JPKW nidx=null]
Platycheirus subambiguus
 - Platycheirus subambiguus Nielsen, 2004 [SYNONYM SPECIES 9817:8BNP8 nidx=null parent=8DDVB]
 + Platycheirus subambiguus Nielsen, 2004 [ACCEPTED SPECIES 9820:4JPKX nidx=null]
Platycheirus subcomplicatus
 - Platycheirus subcomplicatus Ôhara, 1980 [SYNONYM SPECIES 9817:8BNP9 nidx=null parent=8DDWZ]
 + Platycheirus subcomplicatus Ôhara, 1980 [SYNONYM SPECIES 9820:4JPKY nidx=null parent=4JPH2]
Platycheirus tatricus
 - Platycheirus tatricus Dušek & Láska, 1982 [SYNONYM SPECIES 9817:8BNPB nidx=null parent=8DDYQ]
 + Platycheirus tatricus Dušek & Láska, 1982 [ACCEPTED SPECIES 9820:4JPL2 nidx=null]
Platycheirus tenebrosus
 - Platycheirus tenebrosus Coquillett, 1900 [SYNONYM SPECIES 9817:88YGV nidx=null parent=8DDYR]
 + Platycheirus tenebrosus Coquillett, 1900 [ACCEPTED SPECIES 9820:4JPL3 nidx=null]
Platycheirus thompsoni
 - Platycheirus thompsoni Vockeroth, 1990 [SYNONYM SPECIES 9817:88YGW nidx=null parent=8DDYS]
 + Platycheirus thompsoni Vockeroth, 1990 [ACCEPTED SPECIES 9820:4JPL5 nidx=null]
Platycheirus thylax
 - Platycheirus thylax Hull, 1944 [SYNONYM SPECIES 9817:88YGX nidx=null parent=8DDYT]
 + Platycheirus thylax Hull, 1944 [ACCEPTED SPECIES 9820:4JPL6 nidx=null]
Platycheirus troll
 - Platycheirus troll Mutin, 1999 [SYNONYM SPECIES 9817:8BNPF nidx=null parent=8DDYV]
 + Platycheirus troll Mutin, 1999 [ACCEPTED SPECIES 9820:4JPL9 nidx=null]
Platycheirus tuvaensis
 - Platycheirus tuvaensis Barkalov & Nielsen, 2008 [SYNONYM SPECIES 9817:8BNPG nidx=null parent=8DDVD]
 + Platycheirus tuvaensis Barkalov & Nielsen, 2008 [ACCEPTED SPECIES 9820:6VPP7 nidx=null]
Platycheirus varipes
 - Platycheirus varipes Curran, 1923 [SYNONYM SPECIES 9817:88YGY nidx=null parent=8DDYX]
 + Platycheirus varipes Curran, 1923 [ACCEPTED SPECIES 9820:4JPLC nidx=null]
Platycheirus woodi
 - Platycheirus woodi Vockeroth, 1990 [SYNONYM SPECIES 9817:88YGZ nidx=null parent=8DDT8]
 + Platycheirus woodi Vockeroth, 1990 [ACCEPTED SPECIES 9820:4JPLF nidx=null]
Platycheirus yukonensis
 - Platycheirus yukonensis Vockeroth, 1990 [SYNONYM SPECIES 9817:8BNPJ nidx=null parent=8DDT9]
 + Platycheirus yukonensis Vockeroth, 1990 [ACCEPTED SPECIES 9820:4JPLG nidx=null]
Platychirus major
 - Platychirus major Szilády, 1940 [SYNONYM SPECIES 9817:8BNQW nidx=null parent=8DDVJ]
 + Platychirus major Szilády, 1940 [SYNONYM SPECIES 9820:4JPP2 nidx=null parent=6VQ25]
Platychirus monticolus
 - Platychirus monticolus Nielsen, 1972 [SYNONYM SPECIES 9817:88YH6 nidx=null parent=8DDWH]
 + Platychirus monticolus Nielsen, 1972 [SYNONYM SPECIES 9820:4JPP3 nidx=null parent=4JPG9]
Platychirus pygmaeus
 - Platychirus pygmaeus Frey, 1907 [SYNONYM SPECIES 9817:8BNQZ nidx=null parent=8DDYD]
 + Platychirus pygmaeus Frey, 1907 [SYNONYM SPECIES 9820:4JPP6 nidx=null parent=6VPP4]
Platypeza rufipes
 - Platypeza rufipes Morge, 1975 [SYNONYM SPECIES 9817:4JVK2 nidx=null parent=4N4VP]
 + Platypeza rufipes Meigen, 1975 [SYNONYM SPECIES 9820:8YVMX nidx=null parent=4N4VP]
Platyroptilon miersii
 - Platyroptilon miersii Westwood, 1850 [SYNONYM SPECIES 9817:8BSD8 nidx=null parent=8DF59]
 + Platyroptilon miersii Westwood, 1850 [ACCEPTED SPECIES 9820:4JXYZ nidx=null]
Platyura concolor
 - Platyura concolor Wulp, 1874 [SYNONYM SPECIES 9817:4JZTR nidx=null parent=6MYN6]
 + Platyura concolor Wulp, 1875 [SYNONYM SPECIES 9820:8YVN3 nidx=null parent=6MYN6]
Platyura rubens
 - Platyura rubens Wiedemann, 1828 [SYNONYM SPECIES 9817:8BSHQ nidx=null parent=8DF6L]
 + Platyura rubens Wiedemann, 1828 [ACCEPTED SPECIES 9820:4JZV9 nidx=null]
Platyura rufipes
 - Platyura rufipes Meigen, 1818 [SYNONYM SPECIES 9817:4JZVC nidx=null parent=6W2VP]
 + Platyura rufipes Wiedemann, 1818 [SYNONYM SPECIES 9820:8YVN7 nidx=null parent=6W2VP]
Platyura subannulata
 - Platyura subannulata Philippi, 1865 [SYNONYM SPECIES 9817:8BSHR nidx=null parent=8DF6M]
 + Platyura subannulata Philippi, 1865 [ACCEPTED SPECIES 9820:4JZVK nidx=null]
Plecia bucklandi
 - Plecia bucklandi Heer, 1856 [ACCEPTED SPECIES 9817:8DFD3 nidx=null]
 - Plecia bucklandi Hewer [PROVISIONALLY_ACCEPTED SPECIES 9817:8DFD4 nidx=null]
 + Plecia bucklandi (Heer, 1849) [ACCEPTED SPECIES 9820:8YVN8 nidx=null]
Plectris brevis
 - Plectris brevis Blanchard, 1851 [ACCEPTED SPECIES 9817:4K4T8 nidx=null]
 + Plectris brevis Blanchard, 1850 [ACCEPTED SPECIES 9820:8YX7V nidx=null]
Plectris flavohirta
 - Plectris flavohirta Blanchard, 1851 [ACCEPTED SPECIES 9817:4K4VF nidx=null]
 + Plectris flavohirta Blanchard, 1850 [ACCEPTED SPECIES 9820:8YX7W nidx=null]
Plectris mus
 - Plectris mus Blanchard, 1851 [ACCEPTED SPECIES 9817:4K4Y2 nidx=null]
 + Plectris mus Blanchard, 1850 [ACCEPTED SPECIES 9820:8YX7X nidx=null]
Plectris rugulosipennis
 - Plectris rugulosipennis Blanchard, 1851 [ACCEPTED SPECIES 9817:4K52L nidx=null]
 + Plectris rugulosipennis Blanchard, 1850 [ACCEPTED SPECIES 9820:8YX82 nidx=null]
Plectris violascens
 - Plectris violascens Blanchard, 1851 [ACCEPTED SPECIES 9817:4K54W nidx=null]
 + Plectris violascens Blanchard, 1850 [ACCEPTED SPECIES 9820:8YX83 nidx=null]
Pleistacantha naresii
 - Pleistacantha naresii (Miers, 1886) [ACCEPTED SPECIES 9817:4K6NN nidx=null]
 + Pleistacantha naresii (Miers in Tizard, Moseley, Buchanan & Murray, 1885) [ACCEPTED SPECIES 9820:8YYG4 nidx=null]
Pleurotomoides milletii
 - Pleurotomoides milletii (Millet, 1827) [ACCEPTED SPECIES 9817:7SS5S nidx=null]
 + Pleurotomoides milletii ( [Anonymous] , 1827) [ACCEPTED SPECIES 9820:8Z6Y6 nidx=null]
Plutomurus brevimucronatus
 - Plutomurus brevimucronatus (Denis, 1928) [ACCEPTED SPECIES 9817:4KKKQ nidx=null]
 + Plutomurus brevimucronatus (Denis, J-R, 1929) [ACCEPTED SPECIES 9820:8Z6YC nidx=null]
Podura aquatica
 - Podura aquatica grisea de Geer, C, 1778 [AMBIGUOUS_SYNONYM SPECIES 9817:4KS2R nidx=null parent=3QCSF]
 - Podura aquatica grisea de Geer, 1740 [AMBIGUOUS_SYNONYM SPECIES 9817:4KS2S nidx=null parent=3QCHV]
 + Podura aquatica Poda, N, 1761 [SYNONYM SPECIES 9820:8YZRZ nidx=null parent=4KS2T]
 + Podura aquatica Lucas, H, 1840 [SYNONYM SPECIES 9820:8YZS2 nidx=null parent=4KS2T]
 + Podura aquatica Scopoli, JA, 1763 [SYNONYM SPECIES 9820:8YZS3 nidx=null parent=4KS2T]
Podura arborea
 - Podura arborea grisea de Geer, C, 1778 [AMBIGUOUS_SYNONYM SPECIES 9817:4KS2Y nidx=null parent=6FF5L]
 + Podura arborea Scopoli, JA, 1763 [SYNONYM SPECIES 9820:8Z5Q3 nidx=null parent=5B8RS]
 + Podura arborea Lucas, H, 1840 [SYNONYM SPECIES 9820:8Z5Q4 nidx=null parent=6FF53]
Podura terrestris
 - Podura terrestris alba Linnæus, C, 1746 [SYNONYM SPECIES 9817:4KS5N nidx=null parent=6JBFZ]
 + Podura terrestris Scopoli, JA, 1763 [SYNONYM SPECIES 9820:8Z6ZR nidx=null parent=6JBFZ]
Poecile atricapillus fortuita
 - Poecile atricapillus fortuita (W. L. Dawson & J. H. Bowles, 1909) [SYNONYM SUBSPECIES 9817:5KJS9 nidx=null parent=8XMZS]
 + Poecile atricapillus fortuita (W. L. Dawson & J. H. Bowles, 1909) [SYNONYM SUBSPECIES 9820:8Z3HY nidx=null parent=8Z3HX]
Poecile atricapillus fortuitus
 - Poecile atricapillus fortuitus (W. L. Dawson & J. H. Bowles, 1909) [ACCEPTED SUBSPECIES 9817:8XMZS nidx=null]
 + Poecile atricapillus fortuitus (W. L. Dawson & J. H. Bowles, 1909) [ACCEPTED SUBSPECIES 9820:8Z3HX nidx=null]
Poecilia reticulata
 - Poecilia reticulata Peters, 1859 [ACCEPTED SPECIES 9817:4KSF6 nidx=null]
 + Poecilia reticulata Peters, 1859 [ACCEPTED SPECIES 9820:8YYHJ nidx=null]
Pollenia flavicans
 - Pollenia flavicans (Doleschall, 1859) [ACCEPTED SPECIES 9817:4KYTM nidx=null]
 + Pollenia flavicans Doleschall, 1858 [SYNONYM SPECIES 9820:4KYTL nidx=null parent=7KK]
Polycera norvegica
 - Polycera norvegica Sørensen, Rauch, Pola & Malaquias, 2020 [SYNONYM SPECIES 9817:8P72Y nidx=null parent=8QGZR]
 + Polycera norvegica Sørensen, Rauch, Pola & Malaquias, 2020 [ACCEPTED SPECIES 9820:7SS9Y nidx=null]
Polycirrus phosphoreus
 - Polycirrus phosphoreus Verrill, 1880 [ACCEPTED SPECIES 9817:6VSC9 nidx=null]
 + Polycirrus phosphoreus Verrill, 1879 [ACCEPTED SPECIES 9820:8YWX4 nidx=null]
Polydesmus monticola vallicola
 - Polydesmus monticola vallicola Verhoeff, 1913 [ACCEPTED SUBSPECIES 9817:5KKKV nidx=null]
 + Polydesmus monticola vallicola Verhoeff, 1913 [ACCEPTED SUBSPECIES 9820:8YZPY nidx=null]
Polydontomyia
 - Polydontomyia [ACCEPTED SUBGENUS 9817:89T2L nidx=null]
 + Polydontomyia [ACCEPTED GENUS 9820:8YQVP nidx=null]
Polymnia nebulosa
 - Polymnia nebulosa (Montagu, 1818) [SYNONYM SPECIES 9817:4LBJ9 nidx=null parent=3CWXJ]
 + Polymnia nebulosa (Montagu, 1819) [SYNONYM SPECIES 9820:8YWX6 nidx=null parent=3CWXJ]
Polypedilum (Pentapedilum) sordens
 - Polypedilum (Pentapedilum) sordens (Wulp, 1874) [ACCEPTED SPECIES 9817:8DG6G nidx=null]
 + Polypedilum (Pentapedilum) sordens (Wulp, 1875) [ACCEPTED SPECIES 9820:8YVNL nidx=null]
Polypedilum okiflavum
 - Polypedilum okiflavum Sasa, 1991 [ACCEPTED SPECIES 9817:4LDHL nidx=null]
 + Polypedilum okiflavum Sasa, 1990 [ACCEPTED SPECIES 9820:8YVNQ nidx=null]
Polypedilum okiharaki
 - Polypedilum okiharaki Sasa, 1991 [ACCEPTED SPECIES 9817:4LDHM nidx=null]
 + Polypedilum okiharaki Sasa, 1990 [ACCEPTED SPECIES 9820:8YVNR nidx=null]
Polypedilum okipallidum
 - Polypedilum okipallidum Sasa, 1991 [ACCEPTED SPECIES 9817:4LDHN nidx=null]
 + Polypedilum okipallidum Sasa, 1990 [ACCEPTED SPECIES 9820:8YVNS nidx=null]
Porricondyla flava
 - Porricondyla flava Meigen [ACCEPTED SPECIES 9817:4LZMT nidx=null]
 + Porricondyla flava Felt, 1907 [SYNONYM SPECIES 9820:4LZMS nidx=null parent=787JJ]
Potamocarcinus (Anaphrymos) bocourti
 - Potamocarcinus (Anaphrymos) bocourti Bott, 1967 [SYNONYM SPECIES 9817:4M3F7 nidx=null parent=4R8VZ]
 + Potamocarcinus (Anaphrymos) bocourti (A. Milne-Edwards, 1866) [SYNONYM SPECIES 9820:8YYJ5 nidx=null parent=4R8VZ]
Potamon hispidum
 - Potamon hispidum [SYNONYM SPECIES 9817:7YF8D nidx=null parent=6N7XV]
 + Potamon hispidum (Wood-Mason, 1871) [SYNONYM SPECIES 9820:8YYJ7 nidx=null parent=6N7XV]
Potamonautes (Erimetopus) brazzae
 - Potamonautes (Erimetopus) brazzae Bott, 1955 [SYNONYM SPECIES 9817:4M4GC nidx=null parent=3B29P]
 + Potamonautes (Erimetopus) brazzae (A. Milne-Edwards, 1886) [SYNONYM SPECIES 9820:8YYJ8 nidx=null parent=3B29P]
Praxillura ornata
 - Praxillura ornata Verrill, 1880 [ACCEPTED SPECIES 9817:4M9XV nidx=null]
 + Praxillura ornata Verrill, 1879 [ACCEPTED SPECIES 9820:8YWX7 nidx=null]
Presbytis melalophos sumatrana
 - Presbytis melalophos sumatrana (Müller & Schlegel, 1841) [SYNONYM SUBSPECIES 9817:8XXYW nidx=null parent=4MBBM]
 + Presbytis melalophos sumatrana (Müller & Schlegel, 1841) [SYNONYM SUBSPECIES 9820:8Z5QV nidx=null parent=4MBBM]
Presbytis melalophos sumatranus
 - Presbytis melalophos sumatranus (Müller & Schlegel, 1841) [SYNONYM SUBSPECIES 9817:5KMT7 nidx=null parent=4MBBM]
 + Presbytis melalophos sumatranus (Müller & Schlegel, 1841) [SYNONYM SUBSPECIES 9820:8Z5QW nidx=null parent=4MBBM]
Pressatia
 - Pressatia [ACCEPTED SUBGENUS 9817:8FM3 nidx=null]
 + Pressatia [ACCEPTED GENUS 9820:8YPXT nidx=null]
Probolaphorura plumosetosa
 - Probolaphorura plumosetosa Martynova, 1978 [ACCEPTED SPECIES 9817:4MLY2 nidx=null]
 + Probolaphorura plumosetosa Martynova, 1979 [ACCEPTED SPECIES 9820:8Z72B nidx=null]
Procamallanus (Spirocamallanus) macaensis
 - Procamallanus (Spirocamallanus) macaensis Vicente & Santos, 1972 [ACCEPTED SPECIES 9817:8GH7F nidx=null]
 + Procamallanus (Spirocamallanus) macaensis (Vicente & dos Santos, 1972) Pinto, de Fabio, Noronha & Rolas, 1974 [ACCEPTED SPECIES 9820:8YYJD nidx=null]
Proceroplatus catharinae
 - Proceroplatus catharinae Edwards, 1932 [SYNONYM SPECIES 9817:8CK4G nidx=null parent=8DGQP]
 + Proceroplatus catharinae Edwards, 1932 [ACCEPTED SPECIES 9820:4MMZN nidx=null]
Proceroplatus guayanasi
 - Proceroplatus guayanasi Lane, 1950 [SYNONYM SPECIES 9817:8CK4H nidx=null parent=8DGQQ]
 + Proceroplatus guayanasi Lane, 1950 [ACCEPTED SPECIES 9820:4MMZQ nidx=null]
Proceroplatus iaunai
 - Proceroplatus iaunai Lane, 1956 [SYNONYM SPECIES 9817:8CK4K nidx=null parent=8DGQR]
 + Proceroplatus iaunai Lane, 1956 [ACCEPTED SPECIES 9820:4MMZR nidx=null]
Proceroplatus kerteszi
 - Proceroplatus kerteszi Lane, 1956 [SYNONYM SPECIES 9817:8CK4L nidx=null parent=8DGQT]
 + Proceroplatus kerteszi Lane, 1956 [ACCEPTED SPECIES 9820:4MMZT nidx=null]
Proceroplatus paramariboensis
 - Proceroplatus paramariboensis Edwards, 1934 [SYNONYM SPECIES 9817:8CK4T nidx=null parent=8DGQV]
 + Proceroplatus paramariboensis Edwards, 1934 [ACCEPTED SPECIES 9820:4MMZY nidx=null]
Proceroplatus pictipennis
 - Proceroplatus pictipennis Williston, 1896 [SYNONYM SPECIES 9817:8CK4V nidx=null parent=8DGQW]
 + Proceroplatus pictipennis Williston, 1896 [ACCEPTED SPECIES 9820:4MN23 nidx=null]
Proceroplatus puncticoxalis
 - Proceroplatus puncticoxalis Edwards, 1940 [SYNONYM SPECIES 9817:8CK4W nidx=null parent=8DGQX]
 + Proceroplatus puncticoxalis Edwards, 1940 [ACCEPTED SPECIES 9820:4MN28 nidx=null]
Proceroplatus rabelloi
 - Proceroplatus rabelloi Lane, 1956 [SYNONYM SPECIES 9817:8CK4X nidx=null parent=8DGQY]
 + Proceroplatus rabelloi Lane, 1956 [ACCEPTED SPECIES 9820:4MN29 nidx=null]
Proceroplatus terenoi
 - Proceroplatus terenoi Lane, 1950 [SYNONYM SPECIES 9817:8CK52 nidx=null parent=8DGQZ]
 + Proceroplatus terenoi Lane, 1950 [ACCEPTED SPECIES 9820:77Y6P nidx=null]
Proceroplatus trinidadensis
 - Proceroplatus trinidadensis Lane, 1960 [SYNONYM SPECIES 9817:8CK53 nidx=null parent=8DGR2]
 + Proceroplatus trinidadensis Lane, 1960 [ACCEPTED SPECIES 9820:4MN2F nidx=null]
Proceroplatus variventris
 - Proceroplatus variventris Edwards, 1931 [SYNONYM SPECIES 9817:8CK54 nidx=null parent=8DGR3]
 + Proceroplatus variventris Edwards, 1931 [ACCEPTED SPECIES 9820:4MN2G nidx=null]
Proceroplatus vittatus
 - Proceroplatus vittatus Fisher, 1941 [SYNONYM SPECIES 9817:8CK55 nidx=null parent=8DGR5]
 + Proceroplatus vittatus Fisher, 1941 [ACCEPTED SPECIES 9820:4MN2K nidx=null]
Procladius (Psilotanypus) rufovittatus
 - Procladius (Psilotanypus) rufovittatus (Wulp, 1874) [ACCEPTED SPECIES 9817:8DGVL nidx=null]
 + Procladius (Psilotanypus) rufovittatus (Wulp, 1875) [ACCEPTED SPECIES 9820:8YVP7 nidx=null]
Propeanura nomurai
 - Propeanura nomurai (Yosii, R, 1956: 43, i.s.) [ACCEPTED SPECIES 9817:4MTMX nidx=null]
 + Propeanura nomurai (Yosii, R, 1956) [ACCEPTED SPECIES 9820:8Z72T nidx=null]
Prorastriopes cingulus
 - Prorastriopes cingulus (Bonet, 1934) [ACCEPTED SPECIES 9817:789DS nidx=null]
 + Prorastriopes cingulus (Bonet, F, 1933) [ACCEPTED SPECIES 9820:8Z72W nidx=null]
Prorastriopes coalingensis
 - Prorastriopes coalingensis Christiansen, K & Bellinger, P, 1998 [SYNONYM SPECIES 9817:789DR nidx=null parent=77XDR]
 + Prorastriopes coalingensis Snider, RJ & Loring, SJ, 1984 [SYNONYM SPECIES 9820:8Z72Z nidx=null parent=77XDR]
Prosolva karataviensis
 - Prosolva karataviensis Mostovski, 1996 [SYNONYM SPECIES 9817:8DHD6 nidx=null parent=8GMY6]
 + Prosolva karataviensis Mostovski, 1997 [SYNONYM SPECIES 9820:8YVPD nidx=null parent=8GMY6]
Prosthorhynchus
 - Prosthorhynchus Kostylew, 1915 [ACCEPTED SUBGENUS 9817:8W5DZ nidx=null]
 + Prosthorhynchus Kostylew, 1915 [ACCEPTED SUBGENUS 9820:7PVR4 nidx=null]
Protanypus forcipatus
 - Protanypus forcipatus (Egger, 1863) [ACCEPTED SPECIES 9817:4MZVG nidx=null]
 + Protanypus forcipatus (Egger, 1864) [ACCEPTED SPECIES 9820:8YVPH nidx=null]
Protaphorura armatus
 - Protaphorura armatus Christiansen, K & Bellinger, P, 1998 [AMBIGUOUS_SYNONYM SPECIES 9817:4N27Z nidx=null parent=4N29F]
 + Protaphorura armatus Grégoire-Wibo, C, 1978 [SYNONYM SPECIES 9820:8Z4FD nidx=null parent=4N27W]
 + Protaphorura armatus Peck et al., 2001 [SYNONYM SPECIES 9820:8Z4FF nidx=null parent=4N27W]
 + Protaphorura armatus Peck, SB, 2001 [SYNONYM SPECIES 9820:8Z4FG nidx=null parent=4N27W]
 + Protaphorura armatus Snider, RJ, 1967 [SYNONYM SPECIES 9820:8Z4FH nidx=null parent=4N27W]
 + Protaphorura armatus Skidmore, 1995 [SYNONYM SPECIES 9820:8Z4FJ nidx=null parent=4N27W]
Protaphorura crassa
 - Protaphorura crassa (Kos, 1940, s.d.) [ACCEPTED SPECIES 9817:4N28V nidx=null]
 + Protaphorura crassa (Kos, 1940) [ACCEPTED SPECIES 9820:8Z734 nidx=null]
Protaphorura dudichi
 - Protaphorura dudichi (Loksa, I & Rubio, I, 1966: 148, s.d.) [ACCEPTED SPECIES 9817:4N296 nidx=null]
 + Protaphorura dudichi (Loksa, I & Rubio, I, 1966) [ACCEPTED SPECIES 9820:8Z735 nidx=null]
Protaphorura duodecimpunctata
 - Protaphorura duodecimpunctata (Folsom, JW, 1919: 6A) [ACCEPTED SPECIES 9817:4N298 nidx=null]
 + Protaphorura duodecimpunctata (Folsom, JW, 1919) [ACCEPTED SPECIES 9820:8Z736 nidx=null]
Protaphorura duodecimpunctatus
 - Protaphorura duodecimpunctatus Bowser, M, 2008 [SYNONYM SPECIES 9817:4N297 nidx=null parent=4N298]
 + Protaphorura duodecimpunctatus Skidmore, RE, 1995 [SYNONYM SPECIES 9820:8Z737 nidx=null parent=8Z736]
Protaphorura kadici
 - Protaphorura kadici (Loksa, I, 1967: 290, s.d.) [ACCEPTED SPECIES 9817:6VYPG nidx=null]
 + Protaphorura kadici (Loksa, I, 1967) [ACCEPTED SPECIES 9820:8Z73B nidx=null]
Protaphorura macrotuberculata
 - Protaphorura macrotuberculata (Kos, F, 1939: 309, i.s.) [ACCEPTED SPECIES 9817:6VZ23 nidx=null]
 + Protaphorura macrotuberculata (Kos, F, 1939) [ACCEPTED SPECIES 9820:8Z73C nidx=null]
Protaphorura multipunctata
 - Protaphorura multipunctata (Absolon, K, 1900: 406, i.s., s.d.) [ACCEPTED SPECIES 9817:4N2B3 nidx=null]
 + Protaphorura multipunctata (Absolon, K, 1900) [ACCEPTED SPECIES 9820:8Z73D nidx=null]
Protaphorura octopunctata
 - Protaphorura octopunctata Skarzynski, D, Pomorski, RJ, Smolis, A, Weiner, WM, Szeptycki, A, Slawska, M & Sterzynska, M, 2002 [AMBIGUOUS_SYNONYM SPECIES 9817:4N2B8 nidx=null parent=4N2C8]
 + Protaphorura octopunctata Martynova, 1976 [AMBIGUOUS_SYNONYM SPECIES 9820:8Z73F nidx=null parent=4N29D]
 + Protaphorura octopunctata Arbea, JI, Baquero, E, Beruete, E, Pérez Fernández, T & Jordana, R, 2021 [AMBIGUOUS_SYNONYM SPECIES 9820:8Z73G nidx=null parent=8ZNV2]
 + Protaphorura octopunctata Beruete, 2000 [AMBIGUOUS_SYNONYM SPECIES 9820:8Z73H nidx=null parent=8ZNV2]
Protaphorura stalagmitorum
 - Protaphorura stalagmitorum (Absolon, K, 1900: 407, s.d.) [ACCEPTED SPECIES 9817:4N2CH nidx=null]
 + Protaphorura stalagmitorum (Absolon, K, 1900) [ACCEPTED SPECIES 9820:8Z73L nidx=null]
Protaphorura teres
 - Protaphorura teres (Yosii, R, 1956: 53, s.d.) [ACCEPTED SPECIES 9817:4N2CZ nidx=null]
 + Protaphorura teres (Yosii, R, 1956) [ACCEPTED SPECIES 9820:8Z73N nidx=null]
Provalenciennesia boeckhi
 - Provalenciennesia boeckhi (Halaváts, 1887) [ACCEPTED SPECIES 9817:4N7YQ nidx=null]
 + Provalenciennesia boeckhi (Halaváts, 1886) [ACCEPTED SPECIES 9820:8YYLY nidx=null]
Psectrocladius (Psectrocladius) pseudostilatus
 - Psectrocladius (Psectrocladius) pseudostilatus Akrhrorov [ACCEPTED SPECIES 9817:8DHT2 nidx=null]
 + Psectrocladius (Psectrocladius) pseudostilatus Akhrorov, 1975 [ACCEPTED SPECIES 9820:8YVPY nidx=null]
Psectrocladius seiryuheius
 - Psectrocladius seiryuheius Sasa, Suzuki & Sakai, 1998 [ACCEPTED SPECIES 9817:6WB8V nidx=null]
 + Psectrocladius seiryuheius Sasa, Suzuki & Sakai, 1988 [SYNONYM SPECIES 9820:8YVQ2 nidx=null parent=8YVQ3]
Pseudachorutes corticicolus
 - Pseudachorutes corticicolus (Schäffer, 1897) [ACCEPTED SPECIES 9817:4NH44 nidx=null]
 + Pseudachorutes corticicolus (Schäffer, 1896) [ACCEPTED SPECIES 9820:8YZTK nidx=null]
Pseudachorutes dahlii
 - Pseudachorutes dahlii Yayuk, RS, 1989 [SYNONYM SPECIES 9817:4NH4D nidx=null parent=4NH28]
 + Pseudachorutes dahlii Yosii, R, 1965 [SYNONYM SPECIES 9820:8Z742 nidx=null parent=4NH28]
 + Pseudachorutes dahlii Börner, 1901 [SYNONYM SPECIES 9820:8Z743 nidx=null parent=4NH28]
 + Pseudachorutes dahlii Womersley, 1937 [SYNONYM SPECIES 9820:8Z744 nidx=null parent=4NH28]
Pseudachorutes palmiensis f. secundo
 - Pseudachorutes palmiensis f. secundo Denis, 1948 [SYNONYM FORM 9817:7N8D7 nidx=null parent=4NH62]
 + Pseudachorutes palmiensis f. secundo Massoud, Z, 1967 [SYNONYM FORM 9820:8Z87B nidx=null parent=4NH62]
 + Pseudachorutes palmiensis f. secundo Gisin, H, 1960 [SYNONYM FORM 9820:8Z87C nidx=null parent=4NH62]
Pseudachorutes subcrassus
 - Pseudachorutes subcrassus Börner, 1903 [SYNONYM SPECIES 9817:4NH6W nidx=null parent=N2LB]
 - Pseudachorutes subcrassus Selga, 1971, partim Arbea & Jordana in Ramos, 1997 [AMBIGUOUS_SYNONYM SPECIES 9817:4NH6X nidx=null parent=4NH63]
 + Pseudachorutes subcrassus Tullberg, 1871 [ACCEPTED SPECIES 9820:8YZTT nidx=null]
Pseudocatillus pseudocatillus
 - Pseudocatillus pseudocatillus (Barbot de Marny, 1869) [ACCEPTED SPECIES 9817:7STVQ nidx=null]
 + Pseudocatillus pseudocatillus (Abich, 1869) [ACCEPTED SPECIES 9820:8Z74K nidx=null]
Pseudocella triaulolaimus
 - Pseudocella triaulolaimus Hope, 2011 [ACCEPTED SPECIES 9817:89286 nidx=null]
 + Pseudocella triaulolaimus Hope, 1967 [ACCEPTED SPECIES 9820:8YYMD nidx=null]
Pseudonupedia setinerva
 - Pseudonupedia setinerva Ringdahl, 1959 [SYNONYM SPECIES 9817:892M7 nidx=null parent=8D6G2]
 + Pseudonupedia setinerva Ringdahl, 1959 [SYNONYM SPECIES 9820:4P5F8 nidx=null parent=4CSTM]
Pseudophilyra punctulata
 - Pseudophilyra punctulata H.-L. Chen & P.K.L. Ng, 2003 [ACCEPTED SPECIES 9817:6WH9R nidx=null]
 + Pseudophilyra punctulata HL Chen & PKL Ng, 2003 [ACCEPTED SPECIES 9820:8YYN7 nidx=null]
Pseudoscilla exarata
 - Pseudoscilla exarata (Carpenter, 1856) [ACCEPTED SPECIES 9817:8YNTB nidx=null]
 + Pseudoscilla exarata (Carpenter, 1857) [ACCEPTED SPECIES 9820:8ZCQ5 nidx=null]
Pseudosinella boneti
 - Pseudosinella boneti Christiansen, K, 1960: 24, nec Bagnall, 1941 [ACCEPTED SPECIES 9817:4PB5B nidx=null]
 + Pseudosinella boneti Bagnall, 1941 [ACCEPTED SPECIES 9820:8Z74W nidx=null]
Pseudosinella cordobensis
 - Pseudosinella cordobensis Simón, Bach & Gajú, 1986 [ACCEPTED SPECIES 9817:4PB6L nidx=null]
 + Pseudosinella cordobensis Simón, JC, Bach, C & Gaju, M, 1987 [ACCEPTED SPECIES 9820:8Z74X nidx=null]
Pseudosinella inaequalis
 - Pseudosinella inaequalis Stach, 1960 [ACCEPTED SPECIES 9817:4PB9W nidx=null]
 + Pseudosinella inaequalis Bagnall, 1941 [ACCEPTED SPECIES 9820:8Z75D nidx=null]
Pseudosinella ksenemani
 - Pseudosinella ksenemani Stomp, N & Gouze, A, 1984: 249 nec Gisin & Gama, 1970 [AMBIGUOUS_SYNONYM SPECIES 9817:6WGFQ nidx=null parent=4PB72]
 + Pseudosinella ksenemani Gisin, H & da Gama, MM, 1970 [AMBIGUOUS_SYNONYM SPECIES 9820:8Z5S8 nidx=null parent=4PB72]
Pseudosinella lechuzasensis
 - Pseudosinella lechuzasensis Winter, 1963 [ACCEPTED SPECIES 9817:4PBB8 nidx=null]
 + Pseudosinella lechuzasensis [ACCEPTED SPECIES 9820:8Z75G nidx=null]
Pseudosinella marteli
 - Pseudosinella marteli Handschin, 1926 [AMBIGUOUS_SYNONYM SPECIES 9817:4PBBZ nidx=null parent=4PB6X]
 + Pseudosinella marteli Womersley, 1930 [SYNONYM SPECIES 9820:8Z75J nidx=null parent=4PB9R]
 + Pseudosinella marteli Womersley, 1939 [SYNONYM SPECIES 9820:8Z75K nidx=null parent=6Z3DH]
 + Pseudosinella marteli Womersley, 1934 [SYNONYM SPECIES 9820:8Z75L nidx=null parent=6Z3DH]
 + Pseudosinella marteli Denis, J-R, 1936 [SYNONYM SPECIES 9820:8Z75N nidx=null parent=4PB6X]
 + Pseudosinella marteli Denis, J-R, 1936 [SYNONYM SPECIES 9820:8Z75P nidx=null parent=4PB9R]
Pseudosinella martelli
 - Pseudosinella martelli Handschin, 1921 [AMBIGUOUS_SYNONYM SPECIES 9817:4PBC2 nidx=null parent=4PB6X]
 + Pseudosinella martelli Handschin, E in Dahl, F, 1929 [SYNONYM SPECIES 9820:8Z75M nidx=null parent=4PB9R]
Pseudosinella monzoni
 - Pseudosinella monzoni Winter, 1963 [ACCEPTED SPECIES 9817:4PBCF nidx=null]
 + Pseudosinella monzoni [ACCEPTED SPECIES 9820:8Z75R nidx=null]
Pseudosinella neosensillata
 - Pseudosinella neosensillata Winter, 1963 [ACCEPTED SPECIES 9817:4PBCM nidx=null]
 + Pseudosinella neosensillata [ACCEPTED SPECIES 9820:8Z75S nidx=null]
Pseudosinella petrustrinatii
 - Pseudosinella petrustrinatii Reddell & Elliott, 1973 [ACCEPTED SPECIES 9817:4PBDM nidx=null]
 + Pseudosinella petrustrinatii Christiansen K in Reddell, JR, 1981 [ACCEPTED SPECIES 9820:8Z75T nidx=null]
Pseudosmittia amamibifurca
 - Pseudosmittia amamibifurca Sasa, 1991 [SYNONYM SPECIES 9817:4PBK9 nidx=null parent=4PBM5]
 + Pseudosmittia amamibifurca Sasa, 1990 [SYNONYM SPECIES 9820:8YVQN nidx=null parent=4PBM5]
Pseudosmittia seiryuquerea
 - Pseudosmittia seiryuquerea Sasa, Suzuki & Sakai, 1998 [ACCEPTED SPECIES 9817:4PBMY nidx=null]
 + Pseudosmittia seiryuquerea Sasa, Suzuki & Sakai, 1988 [SYNONYM SPECIES 9820:8YVQP nidx=null parent=8ZR8P]
Pseudotrochatella nogieri
 - Pseudotrochatella nogieri (Dautzenberg & d'Hamonville, 1887) [SYNONYM SPECIES 9817:8V37L nidx=null parent=8V2PB]
 + Pseudotrochatella nogieri (Dautzenberg & d'Hamonville, 1888) [SYNONYM SPECIES 9820:8Z76B nidx=null parent=8Z6DD]
Psychoda apicalis
 - Psychoda apicalis Brunetti, 1911 [ACCEPTED SPECIES 9817:4PMG5 nidx=null]
 + Psychoda apicalis Banks, 1907 [SYNONYM SPECIES 9820:4PMG6 nidx=null parent=8D63H]
Psychoda duripuncta
 - Psychoda duripuncta Curran, 1928 [SYNONYM SPECIES 9817:8D7CT nidx=null parent=8B9MW]
 + Psychoda duripuncta Curran, 1928 [SYNONYM SPECIES 9820:4PMJD nidx=null parent=NFMK]
Psychoda obscura
 - Psychoda obscura Santos Abreu, 1930 [ACCEPTED SPECIES 9817:8DK55 nidx=null]
 + Psychoda obscura Tonnoir, 1919 [SYNONYM SPECIES 9820:8YVRS nidx=null parent=6HTJP]
Psyllaphorura raoheensis
 - Psyllaphorura raoheensis Sun & Wu, 2011 [ACCEPTED SPECIES 9817:4PS7N nidx=null]
 + Psyllaphorura raoheensis Sun & Wu, 2013 [SYNONYM SPECIES 9820:8Z76G nidx=null parent=4PS7Q]
 + Psyllaphorura raoheensis Shveenkova, YB & Babenko, AB, 2021 [SYNONYM SPECIES 9820:8Z76H nidx=null parent=4PS7Q]
Pterempis cyrenaica
 - Pterempis cyrenaica Bezzi, 1925 [SYNONYM SPECIES 9817:8DK6X nidx=null parent=8BZBF]
 + Pterempis cyrenaica Bezzi, 1924 [SYNONYM SPECIES 9820:8YVRV nidx=null parent=8YSTP]
Ptilostylomyia triangulifera
 - Ptilostylomyia triangulifera Bigot, 1883 [SYNONYM SPECIES 9817:8DKBS nidx=null parent=3HB6Y]
 + Ptilostylomyia triangulifera Bigot, 1882 [SYNONYM SPECIES 9820:8YVRY nidx=null parent=3HB6Y]
Ptyophis macrophylla
 - Ptyophis macrophylla Redtenbacher, 1867 [SYNONYM SPECIES 9817:4QBMQ nidx=null parent=4QBMR]
 + Ptyophis macrophylla Redtenbacher, 1868 [SYNONYM SPECIES 9820:8YX8Q nidx=null parent=4QBMR]
Pyrellia maculipennis
 - Pyrellia maculipennis Macquart, 1851 [ACCEPTED SPECIES 9817:8DKGJ nidx=null]
 + Pyrellia maculipennis Macquart, 1846 [SYNONYM SPECIES 9820:8YVS4 nidx=null parent=44CZ9]
Pyrophaena
 - Pyrophaena [ACCEPTED SUBGENUS 9817:89T5W nidx=null]
 + Pyrophaena [ACCEPTED GENUS 9820:8YQW4 nidx=null]
Quasiendothyra communis
 - Quasiendothyra communis (Chernysheva, 1940) [ACCEPTED SPECIES 9817:83FTT nidx=null]
 - Quasiendothyra communis (Chernysheva, 1940) [PROVISIONALLY_ACCEPTED SPECIES 9817:8FXCX nidx=null]
 + Quasiendothyra communis (Rauzer-Chernousova, 1948) [SYNONYM SPECIES 9820:8YYP7 nidx=null parent=82G8C]
Quasiendothyra regularis
 - Quasiendothyra regularis [ACCEPTED SPECIES 9817:84CTX nidx=null]
 + Quasiendothyra regularis (Lipina, 1955) [SYNONYM SPECIES 9820:8YYP8 nidx=null parent=82G8G]
Rachispoda (Rachispoda) maculinea
 - Rachispoda (Rachispoda) maculinea (Richards, 1965) [ACCEPTED SPECIES 9817:8DKP6 nidx=null]
 + Rachispoda (Rachispoda) maculinea (Richards, 1966) [ACCEPTED SPECIES 9820:8YVS6 nidx=null]
Ranunculus acris frigidus
 - Ranunculus acris frigidus Regel [SYNONYM INFRASPECIFIC_NAME 9817:7HXYD nidx=null parent=4RGGF]
 + Ranunculus acris frigidus Regel [SYNONYM INFRASPECIFIC_NAME 9820:8Z32Z nidx=null parent=4RGGF]
Ranunculus polyanthemos subsp. polyanthemos
 - Ranunculus polyanthemos subsp. polyanthemos [ACCEPTED SUBSPECIES 9817:8YJJB nidx=null]
 + Ranunculus polyanthemos subsp. polyanthemos [ACCEPTED SUBSPECIES 9820:8Z7WQ nidx=null]
Reganochromis calliurus
 - Reganochromis calliurus (Boulenger, 1901) [ACCEPTED SPECIES 9817:4RPSB nidx=null]
 + Reganochromis calliurus (Boulenger, 1901) [ACCEPTED SPECIES 9820:8YYPL nidx=null]
Reinigia pamirica
 - Reinigia pamirica Enderlein, 1934 [SYNONYM SPECIES 9817:8DKXF nidx=null parent=8W6PY]
 + Reinigia pamirica Enderlein, 1933 [SYNONYM SPECIES 9820:8YVS8 nidx=null parent=8YV8V]
Reinigiellum speculiferum
 - Reinigiellum speculiferum Enderlein, 1934 [SYNONYM SPECIES 9817:8DKXH nidx=null parent=7BVDW]
 + Reinigiellum speculiferum Enderlein, 1933 [SYNONYM SPECIES 9820:8YVS9 nidx=null parent=8YWGP]
Rhaetofungivorella analis
 - Rhaetofungivorella analis Rodendorf [ACCEPTED SPECIES 9817:8DL34 nidx=null]
 + Rhaetofungivorella analis Rohdendorf, 1964 [SYNONYM SPECIES 9820:8YVSL nidx=null parent=8DHJZ]
Rhagas setosa
 - Rhagas setosa Bezzi, 1925 [SYNONYM SPECIES 9817:8DL3C nidx=null parent=3QDZD]
 + Rhagas setosa Bezzi, 1924 [SYNONYM SPECIES 9820:8YVSM nidx=null parent=8ZQK5]
Rhamphomyia brevipila
 - Rhamphomyia brevipila Keilbach, 1982 [ACCEPTED SPECIES 9817:8DLYV nidx=null]
 + Rhamphomyia brevipila Oldenberg, 1922 [SYNONYM SPECIES 9820:4S2TL nidx=null parent=8DLR3]
Rhamphomyia setosa
 - Rhamphomyia setosa Keilbach, 1982 [ACCEPTED SPECIES 9817:893GP nidx=null]
 + Rhamphomyia setosa Coquillett, 1895 [SYNONYM SPECIES 9820:4S3B9 nidx=null parent=8DLP8]
Rhamphomyia tenuicornis
 - Rhamphomyia tenuicornis Keilbach, 1982 [ACCEPTED SPECIES 9817:8DMH8 nidx=null]
 + Rhamphomyia tenuicornis Zetterstedt, 1838 [SYNONYM SPECIES 9820:4S3CR nidx=null parent=8DLCW]
Rhatimomyia nitidula
 - Rhatimomyia nitidula Lynch Arribálzaga, 1882 [ACCEPTED SPECIES 9817:4S5K8 nidx=null]
 + Rhatimomyia nitidula Lynch Arribálzaga, 1883 [ACCEPTED SPECIES 9820:8YVT5 nidx=null]
Rheocricotopus okifoveatus
 - Rheocricotopus okifoveatus Sasa, 1991 [ACCEPTED SPECIES 9817:4S5ZK nidx=null]
 + Rheocricotopus okifoveatus Sasa, 1990 [SYNONYM SPECIES 9820:8YVTL nidx=null parent=8YVTM]
Rheopelopia seiryuuvea
 - Rheopelopia seiryuuvea Sasa, Suzuki & Sakai, 1998 [ACCEPTED SPECIES 9817:78TJD nidx=null]
 + Rheopelopia seiryuuvea Sasa, Suzuki & Sakai, 1988 [ACCEPTED SPECIES 9820:8YVTV nidx=null]
Rheotanytarsus amamiflavus
 - Rheotanytarsus amamiflavus Sasa, 1991 [ACCEPTED SPECIES 9817:4S63X nidx=null]
 + Rheotanytarsus amamiflavus Sasa, 1990 [ACCEPTED SPECIES 9820:8YVTW nidx=null]
Rhizopa yangae
 - Rhizopa yangae P.K.L. Ng, 1985 [SYNONYM SPECIES 9817:4SCSN nidx=null parent=4SDD8]
 + Rhizopa yangae PKL Ng, 1985 [SYNONYM SPECIES 9820:8YYPQ nidx=null parent=8YYPR]
Rhizopoides yangae
 - Rhizopoides yangae (P.K.L. Ng, 1985) [ACCEPTED SPECIES 9817:4SDD8 nidx=null]
 + Rhizopoides yangae (PKL Ng, 1985) [ACCEPTED SPECIES 9820:8YYPR nidx=null]
Rhizotrogus inflatus deserticola
 - Rhizotrogus inflatus deserticola Blanchard, 1851 [SYNONYM INFRASPECIFIC_NAME 9817:7J289 nidx=null parent=5HG5P]
 + Rhizotrogus inflatus deserticola Blanchard, 1850 [SYNONYM INFRASPECIFIC_NAME 9820:8YXCD nidx=null parent=8YXCS]
Rhyncomya rugosa
 - Rhyncomya rugosa Séguy, 1926 [ACCEPTED SPECIES 9817:8DNDK nidx=null]
 + Rhyncomya rugosa Séguy, 1926 [SYNONYM SPECIES 9820:6X7TL nidx=null parent=6WW6Z]
Riisea regia
 - Riisea regia (Steenstrup, 1861) [SYNONYM SPECIES 9817:4T3CR nidx=null parent=4T3CQ]
 + Riisea regia (Steenstrup, 1860) [SYNONYM SPECIES 9820:8YYQT nidx=null parent=4T3CQ]
Rotella montrouzieri
 - Rotella montrouzieri Souverbie, 1858 [SYNONYM SPECIES 9817:4TG87 nidx=null parent=3BKVJ]
 + Rotella montrouzieri Souverbie, 1859 [SYNONYM SPECIES 9820:8YYRG nidx=null parent=3BKVJ]
Salina (Salina) auriculae
 - Salina (Salina) auriculae Lin, 1985 [ACCEPTED SPECIES 9817:79B8C nidx=null]
 + Salina (Salina) auriculae Lln, S-X, 1985 [ACCEPTED SPECIES 9820:8Z77X nidx=null]
Salina (Salina) sinensis
 - Salina (Salina) sinensis Lin, 1985 [ACCEPTED SPECIES 9817:6XB97 nidx=null]
 + Salina (Salina) sinensis Lln, S-X, 1985 [ACCEPTED SPECIES 9820:8Z783 nidx=null]
Sappho sparganura sapho
 - Sappho sparganura sapho (R. Lesson, 1828) [SYNONYM SUBSPECIES 9817:8J9W6 nidx=null parent=5KZX3]
 + Sappho sparganura sapho (R. Lesson, 1828) [SYNONYM SUBSPECIES 9820:8Z3L7 nidx=null parent=8Z3L8]
Sappho sparganurus sapho
 - Sappho sparganurus sapho (R. Lesson, 1828) [ACCEPTED SUBSPECIES 9817:5KZX3 nidx=null]
 + Sappho sparganurus sapho (R. Lesson, 1828) [ACCEPTED SUBSPECIES 9820:8Z3L8 nidx=null]
Sapromyza limbinerva
 - Sapromyza limbinerva (Costa, 1866) [ACCEPTED SPECIES 9817:8DPCF nidx=null]
 + Sapromyza limbinerva Rondani, 1848 [SYNONYM SPECIES 9820:79L35 nidx=null parent=8DVCK]
Saraiella rotunda
 - Saraiella rotunda (Krek, 1970) [ACCEPTED SPECIES 9817:6XMD9 nidx=null]
 + Saraiella rotunda (Krek, 1971) [ACCEPTED SPECIES 9820:8YVWJ nidx=null]
Sargocentron microstoma
 - Sargocentron microstoma (Günther, 1859) [ACCEPTED SPECIES 9817:6XMPH nidx=null]
 + Sargocentron microstoma (Günther, 1859) [ACCEPTED SPECIES 9820:8YYRP nidx=null]
Sargus pleuriticus
 - Sargus pleuriticus Bigot [PROVISIONALLY_ACCEPTED SPECIES 9817:8949Q nidx=null]
 + Sargus pleuriticus McFadden, 1982 [AMBIGUOUS_SYNONYM SPECIES 9820:79NVX nidx=null parent=79NY8]
Scaeva melanostoma
 - Scaeva melanostoma Macquart, 1850 [ACCEPTED SPECIES 9817:6Y4GW nidx=null]
 + Scaeva melanostoma Zetterstedt, 1843 [SYNONYM SPECIES 9820:8YVYD nidx=null parent=8C2PJ]
Scathophaga calceata
 - Scathophaga calceata Ozerov, 2008 [SYNONYM SPECIES 9817:8DSYJ nidx=null parent=8H3TP]
 + Scathophaga calceata Ozerov, 2009 [SYNONYM SPECIES 9820:8YVZQ nidx=null parent=8H3TP]
Scatopse leucopeza
 - Scatopse leucopeza Meigen, 1818 [ACCEPTED SPECIES 9817:6XW92 nidx=null]
 + Scatopse leucopeza (Meigen, 1804) [ACCEPTED SPECIES 9820:8YW23 nidx=null]
Scatopse picea
 - Scatopse picea Meigen, 1818 [SYNONYM SPECIES 9817:8DT9C nidx=null parent=5VNW8]
 + Scatopse picea Wiedemann, 1818 [SYNONYM SPECIES 9820:8YW24 nidx=null parent=8YR72]
Scatopse pusilla
 - Scatopse pusilla Doleschall, 1856 [ACCEPTED SPECIES 9817:894LX nidx=null]
 + Scatopse pusilla Walker, 1848 [SYNONYM SPECIES 9820:8YW25 nidx=null parent=7B5SC]
Scenopinidae
 - Scenopinidae [ACCEPTED SUBFAMILY 9817:87C9T nidx=null]
 + Scenopinidae [ACCEPTED GENUS 9820:8ZS23 nidx=null]
Schaefferia vandalica
 - Schaefferia vandalica Babenko et al., 1994 [AMBIGUOUS_SYNONYM SPECIES 9817:4V62K nidx=null parent=4V5YH]
 + Schaefferia vandalica Babenko et al., 1994 [AMBIGUOUS_SYNONYM SPECIES 9820:8Z78L nidx=null parent=4V5YH]
 + Schaefferia vandalica (Jordana, R & Arbea, JI, 1990) [ACCEPTED SPECIES 9820:8Z78M nidx=null]
Schizonycha auriculata
 - Schizonycha auriculata Redtenbacher, 1867 [SYNONYM SPECIES 9817:7YYGG nidx=null parent=7ZPWF]
 + Schizonycha auriculata Redtenbacher, 1868 [SYNONYM SPECIES 9820:8YX8Z nidx=null parent=7ZPWF]
Sciapus parvus
 - Sciapus parvus Van Duzee, 1931 [ACCEPTED SPECIES 9817:79WDD nidx=null]
 + Sciapus parvus Van Duzee, 1933 [SYNONYM SPECIES 9820:8YW2G nidx=null parent=89Y79]
Sciara
 - Sciara [ACCEPTED SUBGENUS 9817:8V4LH nidx=null]
 - Sciara [ACCEPTED SUBGENUS 9817:8VTYM nidx=null]
 + Sciara [PROVISIONALLY_ACCEPTED GENUS 9820:8YQN5 nidx=null]
Sciara basalis
 - Sciara basalis Meunier, 1899 [ACCEPTED SPECIES 9817:8DTNM nidx=null]
 + Sciara basalis Winnertz, 1867 [SYNONYM SPECIES 9820:4VHRS nidx=null parent=N5ZP]
Sciara bella
 - Sciara bella (Statz, 1944) [ACCEPTED SPECIES 9817:8DTNQ nidx=null]
 + Sciara bella Meunier, 1904 [SYNONYM SPECIES 9820:8YW2J nidx=null parent=8BLDD]
Sciara exilis
 - Sciara exilis Statz, 1944 [ACCEPTED SPECIES 9817:8DTRC nidx=null]
 + Sciara exilis Say, 1829 [SYNONYM SPECIES 9820:6Y8BS nidx=null parent=G3Z]
Sciara jucunda
 - Sciara jucunda (Statz, 1944) [ACCEPTED SPECIES 9817:894SH nidx=null]
 + Sciara jucunda Johannsen, 1912 [SYNONYM SPECIES 9820:8YW2R nidx=null parent=8DJ4Y]
Sciara lugens
 - Sciara lugens (Statz, 1944) [ACCEPTED SPECIES 9817:894SL nidx=null]
 + Sciara lugens Johannsen, 1912 [SYNONYM SPECIES 9820:8YW2W nidx=null parent=8BLLH]
Sciara minuscula
 - Sciara minuscula Théobald, 1937 [ACCEPTED SPECIES 9817:8DTWG nidx=null]
 - Sciara minuscula (Statz, 1944) [PROVISIONALLY_ACCEPTED SPECIES 9817:8DTWH nidx=null]
 + Sciara minuscula Meunier, 1904 [SYNONYM SPECIES 9820:8YW2X nidx=null parent=8BLDD]
Sciomyza reticulata
 - Sciomyza reticulata Eversmann, 1834 [ACCEPTED SPECIES 9817:8DV6Z nidx=null]
 + Sciomyza reticulata Thomson, 1869 [SYNONYM SPECIES 9820:8YW38 nidx=null parent=4G32D]
Sciopemyia
 - Sciopemyia [ACCEPTED SUBGENUS 9817:8G54 nidx=null]
 + Sciopemyia [ACCEPTED GENUS 9820:8YQWB nidx=null]
Sciopolina fasciata
 - Sciopolina fasciata Curran, 1927 [ACCEPTED SPECIES 9817:4VLF7 nidx=null]
 + Sciopolina fasciata Curran, 1924 [SYNONYM SPECIES 9820:8YW3M nidx=null parent=89Y5B]
Scoletoma hebes
 - Scoletoma hebes (Verrill, 1880) [ACCEPTED SPECIES 9817:87557 nidx=null]
 + Scoletoma hebes (Verrill, 1879) [ACCEPTED SPECIES 9820:8YWXH nidx=null]
Scolopsis lineata
 - Scolopsis lineata Quoy & Gaimard, 1824 [ACCEPTED SPECIES 9817:8VCB7 nidx=null]
 + Scolopsis lineata Quoy & Gaimard, 1824 [ACCEPTED SPECIES 9820:8YYSR nidx=null]
Scomberomorus commerson
 - Scomberomorus commerson (Lacepède, 1800) [ACCEPTED SPECIES 9817:4VTWY nidx=null]
 + Scomberomorus commerson (Lacepède, 1800) [ACCEPTED SPECIES 9820:8YYSV nidx=null]
Scyliorhinus canicula
 - Scyliorhinus canicula (Linnaeus, 1758) [ACCEPTED SPECIES 9817:8VCBG nidx=null]
 + Scyliorhinus canicula (Linnaeus, 1758) [ACCEPTED SPECIES 9820:8YYT3 nidx=null]
Seira (Seira) frater
 - Seira (Seira) frater (Bonet, 1934) [ACCEPTED SPECIES 9817:6YCBT nidx=null]
 + Seira (Seira) frater (Bonet, F, 1933) [ACCEPTED SPECIES 9820:8Z795 nidx=null]
Seira mexicana
 - Seira mexicana Folsom, 1898 [SYNONYM SPECIES 9817:4WB2Y nidx=null parent=6YCQN]
 + Seira mexicana Christiansen, K & Bellinger, P, 1980 [SYNONYM SPECIES 9820:8YZZH nidx=null parent=6YCQN]
Seira mimica
 - Seira mimica Harvey, 1894 [AMBIGUOUS_SYNONYM SPECIES 9817:4WB32 nidx=null parent=5BZNG]
 + Seira mimica Salmon, JT, 1964 [SYNONYM SPECIES 9820:8Z79L nidx=null parent=5BZND]
 + Seira mimica Linnaniemi, WM, 1912 [SYNONYM SPECIES 9820:8Z79M nidx=null parent=5BZND]
 + Seira mimica Christiansen, K & Bellinger, P, 1980 [SYNONYM SPECIES 9820:8Z79N nidx=null parent=5BZND]
 + Seira mimica Christiansen, K & Bellinger, P, 1998 [SYNONYM SPECIES 9820:8Z79P nidx=null parent=5BZND]
 + Seira mimica Maynard, EA, 1951 [SYNONYM SPECIES 9820:8Z79Q nidx=null parent=5BZND]
Senaspis elliottii
 - Senaspis elliottii Austen, 1909 [SYNONYM SPECIES 9817:8DVKG nidx=null parent=8FGYR]
 + Senaspis elliottii Austen, 1909 [ACCEPTED SPECIES 9820:4WJ9G nidx=null]
Senotainia neimengguensis
 - Senotainia neimengguensis Chao & Zhang, 1988 [ACCEPTED SPECIES 9817:8DVMK nidx=null]
 + Senotainia neimengguensis Chao & Zhang, 1999 [SYNONYM SPECIES 9820:8YW3S nidx=null parent=4WPLF]
Sepsis (Sepsis) pamirensis
 - Sepsis (Sepsis) pamirensis Enderlein, 1934 [ACCEPTED SPECIES 9817:8DVV9 nidx=null]
 + Sepsis (Sepsis) pamirensis Enderlein, 1933 [ACCEPTED SPECIES 9820:8YW3W nidx=null]
Sepsis pamirensis
 - Sepsis pamirensis Enderlein, 1934 [SYNONYM SPECIES 9817:8DW49 nidx=null parent=8DVV9]
 + Sepsis pamirensis Enderlein, 1933 [SYNONYM SPECIES 9820:8YW3V nidx=null parent=8YW3W]
Serica sinica
 - Serica sinica Hope, 1842 [SYNONYM SPECIES 9817:7YZXS nidx=null parent=7ZPP8]
 + Serica sinica Hope, 1845 [SYNONYM SPECIES 9820:8YX95 nidx=null parent=8YX5T]
Serromyia austera
 - Serromyia austera Statz, 1941 [ACCEPTED SPECIES 9817:8DWQ6 nidx=null]
 + Serromyia austera Statz, 1944 [SYNONYM SPECIES 9820:8YW44 nidx=null parent=8DWQ4]
Setanodosa rosasi
 - Setanodosa rosasi (Bonet, 1934) [ACCEPTED SPECIES 9817:4X248 nidx=null]
 + Setanodosa rosasi (Bonet, F, 1933) [ACCEPTED SPECIES 9820:8Z79X nidx=null]
Setihercostomus setifacies
 - Setihercostomus setifacies (Stackelberg, 1934) [ACCEPTED SPECIES 9817:4X2VB nidx=null]
 + Setihercostomus setifacies (Stackelberg, 1933) [ACCEPTED SPECIES 9820:8YW45 nidx=null]
Sharasargus ruptus
 - Sharasargus ruptus Mostovski, 1996 [ACCEPTED SPECIES 9817:8DWVH nidx=null]
 + Sharasargus ruptus Mostovski, 1997 [ACCEPTED SPECIES 9820:8YW49 nidx=null]
Sharasargus spiniger
 - Sharasargus spiniger Mostovski, 1996 [ACCEPTED SPECIES 9817:8DWVJ nidx=null]
 + Sharasargus spiniger Mostovski, 1997 [ACCEPTED SPECIES 9820:8YW4B nidx=null]
Sigalion arenicola
 - Sigalion arenicola Verrill, 1880 [ACCEPTED SPECIES 9817:6YMQB nidx=null]
 + Sigalion arenicola Verrill, 1879 [ACCEPTED SPECIES 9820:8YWXK nidx=null]
Silurozodus
 - Silurozodus Liljedahl, 1994 [ACCEPTED GENUS 9817:7PGR6 nidx=null]
 + Silurozodus Liljedahl, 1992 [ACCEPTED GENUS 9820:8YSS4 nidx=null]
Simplicephalus
 - Simplicephalus Cohen, 2002 [ACCEPTED SUBGENUS 9817:8W5FC nidx=null]
 + Simplicephalus Cohen, 2002 [ACCEPTED SUBGENUS 9820:7Q87C nidx=null]
Simulium (Montisimulium) chuanbeiense
 - Simulium (Montisimulium) chuanbeiense Chen & Zhang, 2007 [ACCEPTED SPECIES 9817:8DXTX nidx=null]
 + Simulium (Montisimulium) chuanbeiense Chen, Zhang & Liu, 2008 [ACCEPTED SPECIES 9820:8YW4P nidx=null]
Simulium (Montisimulium) jisigouense
 - Simulium (Montisimulium) jisigouense Chen & Zhang, 2007 [ACCEPTED SPECIES 9817:8DXVF nidx=null]
 + Simulium (Montisimulium) jisigouense Chen, Zhang & Liu, 2008 [ACCEPTED SPECIES 9820:8YW4S nidx=null]
Sinella hofti
 - Sinella hofti Greenslade, P, 1997-: www0312 [AMBIGUOUS_SYNONYM SPECIES 9817:4XJS8 nidx=null parent=WQ32]
 + Sinella hofti Bonet ISS [SYNONYM SPECIES 9820:8Z5T8 nidx=null parent=WQ32]
 + Sinella hofti Denis, J-R, 1924 [SYNONYM SPECIES 9820:8Z5T9 nidx=null parent=WQ32]
 + Sinella hofti Paclt, 1959 [SYNONYM SPECIES 9820:8Z5TB nidx=null parent=WQ32]
Singhala tenella
 - Singhala tenella Blanchard, 1851 [ACCEPTED SPECIES 9817:4XK3V nidx=null]
 + Singhala tenella Blanchard, 1850 [ACCEPTED SPECIES 9820:8YX98 nidx=null]
Sinophorbia tergiprotuberans
 - Sinophorbia tergiprotuberans Xue, 1999 [ACCEPTED SPECIES 9817:4XLF5 nidx=null]
 + Sinophorbia tergiprotuberans Xue, 1997 [ACCEPTED SPECIES 9820:8YW57 nidx=null]
Sminthurinus aureus var. ochropus
 - Sminthurinus aureus var. ochropus Linnaniemi, WM, 1912 [SYNONYM VARIETY 9817:5RJS3 nidx=null parent=4XX4T]
 + Sminthurinus aureus var. ochropus Börner, C, 1901 [SYNONYM VARIETY 9820:8Z647 nidx=null parent=4XX4T]
Sminthurinus cingula
 - Sminthurinus cingula Bagnall, 1932 [ACCEPTED SPECIES 9817:4XX5D nidx=null]
 + Sminthurinus cingula Gisin, 1960 [SYNONYM SPECIES 9820:8Z7FV nidx=null parent=6YS8C]
Sminthurinus elegans
 - Sminthurinus elegans (Fitch, 1862) [ACCEPTED SPECIES 9817:4XX5T nidx=null]
 + Sminthurinus elegans (Fitch, A, 1863) [ACCEPTED SPECIES 9820:8Z23Q nidx=null]
Sminthurinus niger
 - Sminthurinus niger Tuxen, 1944 [AMBIGUOUS_SYNONYM SPECIES 9817:4XX76 nidx=null parent=4XX4T]
 + Sminthurinus niger da Gama, 1961 [AMBIGUOUS_SYNONYM SPECIES 9820:8Z23R nidx=null parent=4XX5N]
 + Sminthurinus niger Linnaniemi, WM, 1912 [AMBIGUOUS_SYNONYM SPECIES 9820:8Z23S nidx=null parent=4XX4T]
 + Sminthurinus niger Fjellberg, 1984 [AMBIGUOUS_SYNONYM SPECIES 9820:8Z23T nidx=null parent=4XX5H]
 + Sminthurinus niger Denis, J-R, 1933 [AMBIGUOUS_SYNONYM SPECIES 9820:8Z23V nidx=null parent=4XX75]
 + Sminthurinus niger da Gama, 1959 [AMBIGUOUS_SYNONYM SPECIES 9820:8Z23W nidx=null parent=4XX5N]
 + Sminthurinus niger Börner in Voeltzkow, 1907 [AMBIGUOUS_SYNONYM SPECIES 9820:8Z23X nidx=null parent=4XX6W]
Sminthurinus signifer
 - Sminthurinus signifer (Fitch, 1862) [ACCEPTED SPECIES 9817:4XX82 nidx=null]
 + Sminthurinus signifer (Fitch, A, 1863) [ACCEPTED SPECIES 9820:8Z7G3 nidx=null]
 + Sminthurinus signifer Denis, 1933 [AMBIGUOUS_SYNONYM SPECIES 9820:8Z7G4 nidx=null parent=4XX4T]
Sminthurus aquaticus var. levanderi
 - Sminthurus aquaticus var. levanderi Schött, H, 1893 [SYNONYM VARIETY 9817:5RJSC nidx=null parent=4XX24]
 + Sminthurus aquaticus var. levanderi Reuter OM in Schött, H, 1893 [SYNONYM VARIETY 9820:8Z85W nidx=null parent=4XX24]
Sminthurus aquaticus var. viridulus
 - Sminthurus aquaticus var. viridulus Schött, H, 1893 [SYNONYM VARIETY 9817:5RJSD nidx=null parent=4XX24]
 + Sminthurus aquaticus var. viridulus Reuter OM in Schött, H, 1893 [SYNONYM VARIETY 9820:8Z85X nidx=null parent=4XX24]
Sminthurus mammonthia
 - Sminthurus mammonthia Banks, 1897 [ACCEPTED SPECIES 9817:4XXBM nidx=null]
 + Sminthurus mammonthia Stach, 1956 [SYNONYM SPECIES 9820:8Z7GJ nidx=null parent=4QP22]
Sminthurus packardii
 - Sminthurus packardii Christiansen, K & Bellinger, P, 1998 [SYNONYM SPECIES 9817:4XXCH nidx=null parent=4XXCJ]
 + Sminthurus packardii Folsom, 1934 [SYNONYM SPECIES 9820:8Z24J nidx=null parent=4XXCJ]
Sminthurus plumbeus
 - Sminthurus plumbeus Lemoine, 1882 [ACCEPTED SPECIES 9817:6YTMV nidx=null]
 + Sminthurus plumbeus Claypole, AM, 1898 [SYNONYM SPECIES 9820:8Z7GM nidx=null parent=8Z299]
Sminthurus quinqueseta
 - Sminthurus quinqueseta (Salmon, 1954) [ACCEPTED SPECIES 9817:6YTN7 nidx=null]
 + Sminthurus quinqueseta Stach, J, 1956 [SYNONYM SPECIES 9820:8Z7GP nidx=null parent=6VTMK]
Sminthurus viridis dorsovittata
 - Sminthurus viridis dorsovittata Grinbergs, 1960 [SYNONYM SUBSPECIES 9817:5L7L5 nidx=null parent=6Z5N8]
 + Sminthurus viridis dorsovittata Stach, 1922 [SYNONYM SUBSPECIES 9820:8Z7YK nidx=null parent=6Z5N8]
 + Sminthurus viridis dorsovittata Axelson, 1907 [SYNONYM SUBSPECIES 9820:8Z7YL nidx=null parent=6Z5N8]
 + Sminthurus viridis dorsovittata Kseneman, 1937 [SYNONYM SUBSPECIES 9820:8Z7YM nidx=null parent=6Z5N8]
 + Sminthurus viridis dorsovittata Ionesco, 1916 [SYNONYM SUBSPECIES 9820:8Z7YN nidx=null parent=6Z5N8]
 + Sminthurus viridis dorsovittata Handschin, 1924 [SYNONYM SUBSPECIES 9820:8Z7YP nidx=null parent=6Z5N8]
 + Sminthurus viridis dorsovittata Stach, 1920 [SYNONYM SUBSPECIES 9820:8Z7YQ nidx=null parent=6Z5N8]
 + Sminthurus viridis dorsovittata Axelson, 1912 [SYNONYM SUBSPECIES 9820:8Z7YR nidx=null parent=6Z5N8]
Sminthurus viridis irrorata
 - Sminthurus viridis irrorata Grinbergs, 1960 [SYNONYM SUBSPECIES 9817:5L7L8 nidx=null parent=6Z5N8]
 + Sminthurus viridis irrorata Strebel, 1938 [SYNONYM SUBSPECIES 9820:8Z7YT nidx=null parent=6Z5N8]
 + Sminthurus viridis irrorata Handschin, 1924 [SYNONYM SUBSPECIES 9820:8Z7YV nidx=null parent=6Z5N8]
 + Sminthurus viridis irrorata Stach, 1922 [SYNONYM SUBSPECIES 9820:8Z7YW nidx=null parent=6Z5N8]
 + Sminthurus viridis irrorata Axelson, 1907 [SYNONYM SUBSPECIES 9820:8Z7YY nidx=null parent=6Z5N8]
Sminthurus viridis picta
 - Sminthurus viridis picta Grinbergs, 1960 [SYNONYM SUBSPECIES 9817:5L7LD nidx=null parent=6Z5N8]
 + Sminthurus viridis picta Axelson, 1919 [SYNONYM SUBSPECIES 9820:8Z7ZM nidx=null parent=8Z7ZP]
Sminthurus viridis speciosa
 - Sminthurus viridis speciosa Grinbergs, 1960 [SYNONYM SUBSPECIES 9817:5L7LF nidx=null parent=6Z5N8]
 + Sminthurus viridis speciosa Krausbauer, 1901 [SYNONYM SUBSPECIES 9820:8Z7ZS nidx=null parent=6Z5N8]
 + Sminthurus viridis speciosa Axelson, 1912 [SYNONYM SUBSPECIES 9820:8Z7ZT nidx=null parent=6Z5N8]
 + Sminthurus viridis speciosa Kseneman, 1938 [SYNONYM SUBSPECIES 9820:8Z7ZV nidx=null parent=6Z5N8]
 + Sminthurus viridis speciosa Grinbergs, 1958 [SYNONYM SUBSPECIES 9820:8Z7ZW nidx=null parent=6Z5N8]
 + Sminthurus viridis speciosa Wahlgren, 1906 [SYNONYM SUBSPECIES 9820:8Z7ZX nidx=null parent=6Z5N8]
 + Sminthurus viridis speciosa Axelson, 1905 [SYNONYM SUBSPECIES 9820:8Z7ZY nidx=null parent=6Z5N8]
 + Sminthurus viridis speciosa Lie-Pettersen, 1896 [SYNONYM SUBSPECIES 9820:8Z822 nidx=null parent=6Z5N8]
 + Sminthurus viridis speciosa Schille, 1912 [SYNONYM SUBSPECIES 9820:8Z823 nidx=null parent=6Z5N8]
 + Sminthurus viridis speciosa Scherbakow, 1898 [SYNONYM SUBSPECIES 9820:8Z824 nidx=null parent=6Z5N8]
 + Sminthurus viridis speciosa Ågren, 1903 [SYNONYM SUBSPECIES 9820:8Z825 nidx=null parent=6Z5N8]
 + Sminthurus viridis speciosa Axelson, 1907 [SYNONYM SUBSPECIES 9820:8Z826 nidx=null parent=6Z5N8]
Smittia seiryuvewea
 - Smittia seiryuvewea Sasa, Suzuki & Sakai, 1998 [ACCEPTED SPECIES 9817:4XXPT nidx=null]
 + Smittia seiryuvewea Sasa, Suzuki & Sakai, 1988 [ACCEPTED SPECIES 9820:8YW5B nidx=null]
Smittia seiryuwexea
 - Smittia seiryuwexea Sasa, Suzuki & Sakai, 1998 [ACCEPTED SPECIES 9817:6YTLS nidx=null]
 + Smittia seiryuwexea Sasa, Suzuki & Sakai, 1988 [ACCEPTED SPECIES 9820:8YW5C nidx=null]
Smynthurus apicalis
 - Smynthurus apicalis Fitch, 1863 [SYNONYM SPECIES 9817:4XY4G nidx=null parent=MR9X]
 + Smynthurus apicalis Poole, RW in Poole, RW & Gentili, P, 1997 [SYNONYM SPECIES 9820:8Z7H7 nidx=null parent=8YVGR]
Smynthurus basalis
 - Smynthurus basalis Fitch, 1863 [SYNONYM SPECIES 9817:4XY4K nidx=null parent=MR9X]
 + Smynthurus basalis Poole, RW in Poole, RW & Gentili, P, 1997 [SYNONYM SPECIES 9820:8Z7H8 nidx=null parent=8YVGR]
Smynthurus dorsalis
 - Smynthurus dorsalis Fitch, 1863 [AMBIGUOUS_SYNONYM SPECIES 9817:6YTNW nidx=null parent=MR9X]
 + Smynthurus dorsalis Poole, RW in Poole, RW & Gentili, P, 1997 [SYNONYM SPECIES 9820:8Z7H9 nidx=null parent=8YVGR]
Smynthurus juvenilis
 - Smynthurus juvenilis Fitch, 1863 [SYNONYM SPECIES 9817:4XY56 nidx=null parent=MR9X]
 + Smynthurus juvenilis Poole, RW in Poole, RW & Gentili, P, 1997 [SYNONYM SPECIES 9820:8Z7HB nidx=null parent=8YVGR]
Smynthurus maturus
 - Smynthurus maturus Fitch, 1863 [SYNONYM SPECIES 9817:4XY5H nidx=null parent=MR9X]
 + Smynthurus maturus Poole, RW in Poole, RW & Gentili, P, 1997 [SYNONYM SPECIES 9820:8Z7HC nidx=null parent=8YVGR]
Smynthurus signata
 - Smynthurus signata Latreille, X in Cuvier, G, 1817 [AMBIGUOUS_SYNONYM SPECIES 9817:4XY5T nidx=null parent=6CSXG]
 + Smynthurus signata Lucas, H, 1840 [SYNONYM SPECIES 9820:8Z7HF nidx=null parent=6CT9C]
Smynthurus signifer
 - Smynthurus signifer Fitch, 1862 [AMBIGUOUS_SYNONYM SPECIES 9817:4XY5V nidx=null parent=4XX5T]
 - Smynthurus signifer Fitch, 1862 [AMBIGUOUS_SYNONYM SPECIES 9817:6Z5NX nidx=null parent=4XX4T]
 + Smynthurus signifer MacGillivray, 1891 [AMBIGUOUS_SYNONYM SPECIES 9820:8Z7HG nidx=null parent=8YVGR]
 + Smynthurus signifer Stach, J, 1956 [AMBIGUOUS_SYNONYM SPECIES 9820:8Z7HH nidx=null parent=4XX4T]
 + Smynthurus signifer Schött, H, 1891 [AMBIGUOUS_SYNONYM SPECIES 9820:8Z7HJ nidx=null parent=8Z23Q]
Soceulia major
 - Soceulia major (H.-L. Chen & P.K.L. Ng, 2003) [ACCEPTED SPECIES 9817:4XYP5 nidx=null]
 + Soceulia major (HL Chen & PKL Ng, 2003) [ACCEPTED SPECIES 9820:8YYW5 nidx=null]
Spaziphora tomkovichi
 - Spaziphora tomkovichi Ozerov, 2011 [ACCEPTED SPECIES 9817:8H3QZ nidx=null]
 + Spaziphora tomkovichi Ozerov, 2012 [ACCEPTED SPECIES 9820:8YW5Q nidx=null]
Sphaeronella acanthozonis
 - Sphaeronella acanthozonis Hnasen, 1897 [ACCEPTED SPECIES 9817:4YR2X nidx=null]
 + Sphaeronella acanthozonis Hansen, 1897 [ACCEPTED SPECIES 9820:8YYWG nidx=null]
Sphaerophoria interrupta
 - Sphaerophoria interrupta Fabricius, 1805 [ACCEPTED SPECIES 9817:6YWH4 nidx=null]
 + Sphaerophoria interrupta Jones, 1917 [SYNONYM SPECIES 9820:6YWGS nidx=null parent=8Z3W3]
Sphaerosyllis claparedei
 - Sphaerosyllis claparedei Ehlers, 1864 [ACCEPTED SPECIES 9817:8VFW6 nidx=null]
 + Sphaerosyllis claparedei Ehlers, 1864 [ACCEPTED SPECIES 9820:8YWXM nidx=null]
Sphyromyia malleola
 - Sphyromyia malleola Bigot, 1884 [SYNONYM SPECIES 9817:8F4C2 nidx=null parent=75Z3T]
 + Sphyromyia malleola Bigot, 1883 [SYNONYM SPECIES 9820:8YW65 nidx=null parent=75Z3T]
Sphyrotarsus hervibazini
 - Sphyrotarsus hervibazini Parent, 1914 [SYNONYM SPECIES 9817:8F4CD nidx=null parent=8F4C5]
 + Sphyrotarsus hervibazini Negrobov, 1991 [SYNONYM SPECIES 9820:8YW66 nidx=null parent=8ZP2K]
Spinata
 - Spinata E. Cutler & Cutler, 1987 [ACCEPTED SUBGENUS 9817:8W5CN nidx=null]
 + Spinata E. Cutler & Cutler, 1987 [ACCEPTED SUBGENUS 9820:7Q87Z nidx=null]
Spiophanes tenuis
 - Spiophanes tenuis Verrill, 1880 [SYNONYM SPECIES 9817:6ZBHK nidx=null parent=77WDF]
 + Spiophanes tenuis Verrill, 1879 [SYNONYM SPECIES 9820:8YWXN nidx=null parent=77WDF]
Spogostylum montanum
 - Spogostylum montanum (Enderlein, 1934) [ACCEPTED SPECIES 9817:4Z9RP nidx=null]
 + Spogostylum montanum (Enderlein, 1933) [ACCEPTED SPECIES 9820:8YW6H nidx=null]
Stachorutes dallai
 - Stachorutes dallai Simón-Benito, JC, Espantaleón, D & García-Barros, E, , 2005 [SYNONYM SPECIES 9817:6ZFCV nidx=null parent=6ZFD6]
 + Stachorutes dallai Kovác, L, 1999 [SYNONYM SPECIES 9820:8Z7HS nidx=null parent=6ZFD6]
 + Stachorutes dallai Thibaud, J-M & Palacios-Vargas, JG, 2000 [SYNONYM SPECIES 9820:8Z7HT nidx=null parent=6ZFD6]
Stegana nainitalensis
 - Stegana nainitalensis Fartyal & Singh, 2000 [ACCEPTED SPECIES 9817:6ZHMV nidx=null]
 + Stegana nainitalensis Singh & Fartyal, 2002 [SYNONYM SPECIES 9820:8YW6L nidx=null parent=8F4TL]
Stenopogon festae
 - Stenopogon festae Bezzi, 1925 [ACCEPTED SPECIES 9817:523SY nidx=null]
 + Stenopogon festae Bezzi, 1924 [ACCEPTED SPECIES 9820:8YW6S nidx=null]
Stenopogon flavibarbis
 - Stenopogon flavibarbis Enderlein, 1934 [ACCEPTED SPECIES 9817:523T2 nidx=null]
 + Stenopogon flavibarbis Enderlein, 1933 [ACCEPTED SPECIES 9820:8YW6T nidx=null]
Stenopogon fuscibarbis
 - Stenopogon fuscibarbis Enderlein, 1934 [SYNONYM SPECIES 9817:523T7 nidx=null parent=523T2]
 + Stenopogon fuscibarbis Enderlein, 1933 [SYNONYM SPECIES 9820:8YW6W nidx=null parent=8YW6T]
Sthenelais gracilis
 - Sthenelais gracilis Verrill, 1880 [ACCEPTED SPECIES 9817:6ZRQF nidx=null]
 + Sthenelais gracilis Verrill, 1879 [ACCEPTED SPECIES 9820:8YWXP nidx=null]
Stibasoma panamense
 - Stibasoma panamense Curran, 1934 [ACCEPTED SPECIES 9817:8F5RG nidx=null]
 + Stibasoma panamense Fairchild, 1940 [ACCEPTED SPECIES 9820:8YW73 nidx=null]
Stoliczia (Johora) intermedia
 - Stoliczia (Johora) intermedia P.K.L. Ng, 1986 [SYNONYM SPECIES 9817:6ZVLF nidx=null parent=3QQB2]
 + Stoliczia (Johora) intermedia (PKL Ng, 1986) [SYNONYM SPECIES 9820:8YYYL nidx=null parent=8YXLJ]
Stoliczia (Johora) murphyi
 - Stoliczia (Johora) murphyi P.K.L. Ng, 1986 [SYNONYM SPECIES 9817:52TDV nidx=null parent=3QQB4]
 + Stoliczia (Johora) murphyi (PKL Ng, 1986) [SYNONYM SPECIES 9820:8YYYM nidx=null parent=8YXLK]
Stoliczia (Johora) punicea
 - Stoliczia (Johora) punicea P.K.L. Ng, 1985 [SYNONYM SPECIES 9817:52TDW nidx=null parent=3QQB5]
 + Stoliczia (Johora) punicea PKL Ng, 1985 [SYNONYM SPECIES 9820:8YYYN nidx=null parent=8YXLL]
Stoliczia (Johora) tiomanensis counsilmani
 - Stoliczia (Johora) tiomanensis counsilmani P.K.L. Ng, 1985 [SYNONYM SUBSPECIES 9817:84GGT nidx=null parent=6NG7C]
 + Stoliczia (Johora) tiomanensis counsilmani PKL Ng, 1985 [SYNONYM SUBSPECIES 9820:8YZQK nidx=null parent=8YXLG]
Stoliczia changmanae
 - Stoliczia changmanae P.K.L. Ng, 1988 [ACCEPTED SPECIES 9817:6ZVLL nidx=null]
 + Stoliczia changmanae PKL Ng, 1988 [ACCEPTED SPECIES 9820:8YYYP nidx=null]
Stoliczia goal
 - Stoliczia goal P.K.L. Ng, 1993 [ACCEPTED SPECIES 9817:6ZVM2 nidx=null]
 + Stoliczia goal PKL Ng, 1993 [ACCEPTED SPECIES 9820:8YYYQ nidx=null]
Stoliczia karenae
 - Stoliczia karenae P.K.L. Ng, 1993 [ACCEPTED SPECIES 9817:6ZVLP nidx=null]
 + Stoliczia karenae PKL Ng, 1993 [ACCEPTED SPECIES 9820:8YYYR nidx=null]
Stoliczia kedahensis
 - Stoliczia kedahensis P.K.L. Ng, 1992 [ACCEPTED SPECIES 9817:6ZVLN nidx=null]
 + Stoliczia kedahensis PKL Ng, 1992 [ACCEPTED SPECIES 9820:8YYYS nidx=null]
Stomatosema vanchii
 - Stomatosema vanchii Gagné, 1973 [ACCEPTED SPECIES 9817:8F6JY nidx=null]
 + Stomatosema vanchii (Nayar, 1949) [ACCEPTED SPECIES 9820:8YW7G nidx=null]
Streptocephalus
 - Streptocephalus Baird, 1852 [ACCEPTED SUBGENUS 9817:8W3VD nidx=null]
 + Streptocephalus Baird, 1852 [ACCEPTED SUBGENUS 9820:7Q355 nidx=null]
Strigoderma mexicana
 - Strigoderma mexicana Blanchard, 1851 [ACCEPTED SPECIES 9817:5323Y nidx=null]
 + Strigoderma mexicana Blanchard, 1850 [ACCEPTED SPECIES 9820:8YX99 nidx=null]
Synodontis aterrimus
 - Synodontis aterrimus Poll & Roberts, 1968 [ACCEPTED SPECIES 9817:53XKR nidx=null]
 + Synodontis aterrimus Poll & Roberts, 1968 [ACCEPTED SPECIES 9820:8YYZM nidx=null]
Syrphus alpicola
 - Syrphus alpicola Schummel, 1844 [SYNONYM SPECIES 9817:8F7TG nidx=null parent=8DDX6]
 + Syrphus alpicola Schummel, 1844 [SYNONYM SPECIES 9820:7BBQY nidx=null parent=6VPP3]
Syrphus complicatus
 - Syrphus complicatus Becker, 1889 [SYNONYM SPECIES 9817:8F7WZ nidx=null parent=8DDYN]
 + Syrphus complicatus Becker, 1889 [SYNONYM SPECIES 9820:543GP nidx=null parent=4JPKV]
Syrphus cristatus
 - Syrphus cristatus Schummel, 1836 [SYNONYM SPECIES 9817:8F7XV nidx=null parent=8DDXX]
 + Syrphus cristatus Schummel, 1836 [SYNONYM SPECIES 9820:543H6 nidx=null parent=4JPJL]
Syrphus dilatatus
 - Syrphus dilatatus Macquart, 1834 [SYNONYM SPECIES 9817:8F7YC nidx=null parent=8DDW2]
 + Syrphus dilatatus Macquart, 1834 [SYNONYM SPECIES 9820:543HL nidx=null parent=4JPF9]
Syrphus ferrugineus
 - Syrphus ferrugineus Macquart, 1829 [SYNONYM SPECIES 9817:8F7Z7 nidx=null parent=8DDWD]
 + Syrphus ferrugineus Macquart, 1829 [SYNONYM SPECIES 9820:543JK nidx=null parent=4JPG3]
Syrphus monochaetus
 - Syrphus monochaetus Loew, 1871 [SYNONYM SPECIES 9817:8F85F nidx=null parent=8DDTY]
 + Syrphus monochaetus Loew, 1871 [SYNONYM SPECIES 9820:543NS nidx=null parent=4JPFH]
Syrphus nigripes
 - Syrphus nigripes Eversmann, 1834 [ACCEPTED SPECIES 9817:8F85X nidx=null]
 + Syrphus nigripes Loew, 1866 [AMBIGUOUS_SYNONYM SPECIES 9820:543P9 nidx=null parent=8FMX7]
 + Syrphus nigripes Meigen, 1822 [AMBIGUOUS_SYNONYM SPECIES 9820:8YW87 nidx=null parent=TSRW]
Syrphus productus
 - Syrphus productus Macquart, 1850 [SYNONYM SPECIES 9817:8F885 nidx=null parent=8DDSD]
 + Syrphus productus Macquart, 1850 [SYNONYM SPECIES 9820:543R2 nidx=null parent=4JPFT]
Syrphus quadratus
 - Syrphus quadratus Macquart, 1829 [SYNONYM SPECIES 9817:8F88H nidx=null parent=8DDYD]
 + Syrphus quadratus Macquart, 1829 [SYNONYM SPECIES 9820:543RF nidx=null parent=6VPP4]
Syrphus rectus
 - Syrphus rectus Goeldlin, 1996 [ACCEPTED SPECIES 9817:897Q7 nidx=null]
 + Syrphus rectus Osten Sacken, 1875 [SYNONYM SPECIES 9820:543RT nidx=null parent=8F7SL]
Syrphus sexnotatus
 - Syrphus sexnotatus Meigen, 1838 [SYNONYM SPECIES 9817:8F89T nidx=null parent=8DDYD]
 + Syrphus sexnotatus Meigen, 1838 [SYNONYM SPECIES 9820:543SK nidx=null parent=6VPP4]
Syrphus unicolor
 - Syrphus unicolor Macquart [ACCEPTED SPECIES 9817:8F8CB nidx=null]
 + Syrphus unicolor Walker, 1836 [AMBIGUOUS_SYNONYM SPECIES 9820:7BBSJ nidx=null parent=4JPLD]
 + Syrphus unicolor Macquart, 1829 [AMBIGUOUS_SYNONYM SPECIES 9820:7BC4J nidx=null parent=8V6FG]
Tabanus albicans
 - Tabanus albicans Macquart, 1839 [ACCEPTED SPECIES 9817:8FPH4 nidx=null]
 + Tabanus albicans Macquart, 1834 [AMBIGUOUS_SYNONYM SPECIES 9820:547B5 nidx=null parent=JNMB]
 + Tabanus albicans Macquart, 1846 [AMBIGUOUS_SYNONYM SPECIES 9820:547B6 nidx=null parent=725TZ]
Tabanus albipes
 - Tabanus albipes Geoffroy, 1785 [ACCEPTED SPECIES 9817:8FPH5 nidx=null]
 + Tabanus albipes Fabricius, 1794 [AMBIGUOUS_SYNONYM SPECIES 9820:547BG nidx=null parent=7BWT5]
 + Tabanus albipes Schrank, 1781 [AMBIGUOUS_SYNONYM SPECIES 9820:547BH nidx=null parent=3KX6B]
Tabanus brevivitta
 - Tabanus brevivitta Walker, 1850 [ACCEPTED SPECIES 9817:8H3PT nidx=null]
 + Tabanus brevivitta Walker, 1848 [SYNONYM SPECIES 9820:8YW8R nidx=null parent=547L7]
Tabanus colon
 - Tabanus colon Thunberg [ACCEPTED SPECIES 9817:897T4 nidx=null]
 + Tabanus colon Thunberg, 1827 [SYNONYM SPECIES 9820:547QH nidx=null parent=8F947]
Tabanus macquarti
 - Tabanus macquarti Guérin [PROVISIONALLY_ACCEPTED SPECIES 9817:8F9XN nidx=null]
 + Tabanus macquarti Kröber, 1930 [AMBIGUOUS_SYNONYM SPECIES 9820:7BD6T nidx=null parent=7BD6L]
 + Tabanus macquarti Ricardo, 1915 [AMBIGUOUS_SYNONYM SPECIES 9820:7BD75 nidx=null parent=32ZDB]
Tabanus modestus
 - Tabanus modestus Wiedemann [PROVISIONALLY_ACCEPTED SPECIES 9817:8F9YY nidx=null]
 + Tabanus modestus Wiedemann, 1828 [AMBIGUOUS_SYNONYM SPECIES 9820:548HP nidx=null parent=548NN]
Tabanus signata
 - Tabanus signata Meigen, 1820 [SYNONYM SPECIES 9817:5493Q nidx=null parent=3MYCL]
 + Tabanus signata Wiedemann, 1820 [SYNONYM SPECIES 9820:8YW9H nidx=null parent=3MYCL]
Tabanus splendens
 - Tabanus splendens Xu & Liu, 1982 [ACCEPTED SPECIES 9817:8FBBG nidx=null]
 + Tabanus splendens Shiraki, 1918 [SYNONYM SPECIES 9820:5494Q nidx=null parent=7BCWS]
Tabanus triceps
 - Tabanus triceps Thunberg [ACCEPTED SPECIES 9817:8FBDY nidx=null]
 + Tabanus triceps Thunberg, 1827 [SYNONYM SPECIES 9820:5499V nidx=null parent=7BD4P]
Tachina apicalis
 - Tachina apicalis Stephens, 1829 [PROVISIONALLY_ACCEPTED SPECIES 9817:8984M nidx=null]
 + Tachina apicalis Walker, 1853 [AMBIGUOUS_SYNONYM SPECIES 9820:7BDN2 nidx=null parent=8D89N]
Tachina bimaculata
 - Tachina bimaculata Stephens, 1829 [ACCEPTED SPECIES 9817:8FBNV nidx=null]
 + Tachina bimaculata Hartig, 1837 [AMBIGUOUS_SYNONYM SPECIES 9820:7BDP3 nidx=null parent=37PGD]
 + Tachina bimaculata Meigen, 1838 [AMBIGUOUS_SYNONYM SPECIES 9820:7BDP4 nidx=null parent=3Z2Y7]
Tachina brevicornis
 - Tachina brevicornis Macquart, 1854 [ACCEPTED SPECIES 9817:7BDRD nidx=null]
 + Tachina brevicornis Macquart, 1839 [AMBIGUOUS_SYNONYM SPECIES 9820:7BDRC nidx=null parent=3X26T]
 + Tachina brevicornis Wiedemann, 1830 [AMBIGUOUS_SYNONYM SPECIES 9820:8YWB4 nidx=null parent=8FGZR]
Tachina cognata
 - Tachina cognata Stephens, 1829 [ACCEPTED SPECIES 9817:8FBPS nidx=null]
 + Tachina cognata Egger, 1856 [SYNONYM SPECIES 9820:7BDQK nidx=null parent=5WKT3]
Tachina dubia
 - Tachina dubia Stephens, 1829 [ACCEPTED SPECIES 9817:8FBRF nidx=null]
 + Tachina dubia Walker, 1853 [AMBIGUOUS_SYNONYM SPECIES 9820:7BDF4 nidx=null parent=8D8ZB]
 + Tachina dubia Fallén, 1810 [AMBIGUOUS_SYNONYM SPECIES 9820:8YWB8 nidx=null parent=72QXF]
Tachina nervosa
 - Tachina nervosa Eversmann, 1834 [ACCEPTED SPECIES 9817:8FBYQ nidx=null]
 + Tachina nervosa Walker, 1836 [SYNONYM SPECIES 9820:8YWBP nidx=null parent=6CF7S]
Tachina nobilis
 - Tachina nobilis Eversmann, 1834 [ACCEPTED SPECIES 9817:8FBZ2 nidx=null]
 + Tachina nobilis Robineau-Desvoidy, 1863 [SYNONYM SPECIES 9820:54B35 nidx=null parent=88927]
Tachyempis apicis
 - Tachyempis apicis Williston, 1896 [SYNONYM SPECIES 9817:8FCH4 nidx=null parent=8FCGZ]
 + Tachyempis apicis (Williston, 1896) [ACCEPTED SPECIES 9820:54CKX nidx=null]
Tachytrechus bipunctatus
 - Tachytrechus bipunctatus (Macquart, 1842) [ACCEPTED SPECIES 9817:54FQQ nidx=null]
 + Tachytrechus bipunctatus Greene, 1922 [SYNONYM SPECIES 9820:54FQR nidx=null parent=54FS7]
Tachytrechus mesasiaticus
 - Tachytrechus mesasiaticus Stackelberg, 1934 [ACCEPTED SPECIES 9817:54FT9 nidx=null]
 + Tachytrechus mesasiaticus Stackelberg, 1941 [ACCEPTED SPECIES 9820:8YWCK nidx=null]
Tachytrechus vinogradovi
 - Tachytrechus vinogradovi Stackelberg, 1971 [ACCEPTED SPECIES 9817:54FV8 nidx=null]
 + Tachytrechus vinogradovi Stackelberg, 1941 [ACCEPTED SPECIES 9820:8YWCM nidx=null]
Taeniomyia
 - Taeniomyia [ACCEPTED SUBGENUS 9817:89TC5 nidx=null]
 + Taeniomyia [ACCEPTED GENUS 9820:8YQWL nidx=null]
Taeniomyia semipellucida
 - Taeniomyia semipellucida Stein, 1918 [SYNONYM SPECIES 9817:8989T nidx=null parent=8BYX5]
 + Taeniomyia semipellucida Stein, 1918 [SYNONYM SPECIES 9820:54HC7 nidx=null parent=6F6RS]
Tanypus forcipatus
 - Tanypus forcipatus Egger, 1863 [SYNONYM SPECIES 9817:8FCRY nidx=null parent=4MZVG]
 + Tanypus forcipatus Egger, 1864 [SYNONYM SPECIES 9820:8YWCV nidx=null parent=8YVPH]
Tanypus griseipennis
 - Tanypus griseipennis Kieffer, 1917 [ACCEPTED SPECIES 9817:8FCS6 nidx=null]
 + Tanypus griseipennis Wulp, 1858 [SYNONYM SPECIES 9820:8YWCW nidx=null parent=GB5Z]
Tanypus obscurus
 - Tanypus obscurus (Statz, 1944) [ACCEPTED SPECIES 9817:8FCTB nidx=null]
 + Tanypus obscurus Kieffer, 1923 [AMBIGUOUS_SYNONYM SPECIES 9820:54Q9Q nidx=null parent=54Q83]
 + Tanypus obscurus Macquart, 1826 [AMBIGUOUS_SYNONYM SPECIES 9820:54Q9R nidx=null parent=84X]
Tanypus phatta
 - Tanypus phatta Egger, 1863 [SYNONYM SPECIES 9817:8FCTK nidx=null parent=8KYK]
 + Tanypus phatta Egger, 1864 [SYNONYM SPECIES 9820:8YWCY nidx=null parent=8YQX6]
Tanypus pygmaea
 - Tanypus pygmaea Wulp, 1874 [SYNONYM SPECIES 9817:7BJPZ nidx=null parent=4D338]
 + Tanypus pygmaea Wulp, 1875 [SYNONYM SPECIES 9820:8YWD2 nidx=null parent=4D338]
Tanypus rufovittatus
 - Tanypus rufovittatus Wulp, 1874 [SYNONYM SPECIES 9817:8FCTX nidx=null parent=8DGVL]
 + Tanypus rufovittatus Wulp, 1875 [SYNONYM SPECIES 9820:8YWD3 nidx=null parent=8YVP7]
Tanytarsus danicus
 - Tanytarsus danicus (Wulp, 1874) [ACCEPTED SPECIES 9817:54QM2 nidx=null]
 + Tanytarsus danicus (Wulp, 1875) [ACCEPTED SPECIES 9820:8YWD5 nidx=null]
Tanytarsus sordens
 - Tanytarsus sordens Wulp, 1874 [SYNONYM SPECIES 9817:898GR nidx=null parent=8DG6G]
 + Tanytarsus sordens Wulp, 1875 [SYNONYM SPECIES 9820:8YWD8 nidx=null parent=8YVNL]
Tanytarsus virgo
 - Tanytarsus virgo Kieffer, 1917 [ACCEPTED SPECIES 9817:8FD35 nidx=null]
 + Tanytarsus virgo Goetghebuer, 1934 [SYNONYM SPECIES 9820:54R2F nidx=null parent=7649V]
Tapes reticulata
 - Tapes reticulata Tenison Woods, 1878 [SYNONYM SPECIES 9817:54RQT nidx=null parent=7FM9D]
 + Tapes reticulata (Tenison Woods, 1876) [SYNONYM SPECIES 9820:8YZ22 nidx=null parent=7FM9D]
Telmatoscopus collarti
 - Telmatoscopus collarti (Vaillant, 1972) [ACCEPTED SPECIES 9817:558FW nidx=null]
 + Telmatoscopus collarti Satchell, 1955 [SYNONYM SPECIES 9820:8YWDG nidx=null parent=6S6L9]
Telmatoscopus curvistylis
 - Telmatoscopus curvistylis Krek, 1970 [SYNONYM SPECIES 9817:8FD8F nidx=null parent=8CWKJ]
 + Telmatoscopus curvistylis Krek, 1971 [SYNONYM SPECIES 9820:8YWDH nidx=null parent=8YTSY]
Telmatoscopus polyascoideus
 - Telmatoscopus polyascoideus Krek, 1970 [SYNONYM SPECIES 9817:8FDBS nidx=null parent=4D3V3]
 + Telmatoscopus polyascoideus Krek, 1971 [SYNONYM SPECIES 9820:8YWDJ nidx=null parent=8YVFW]
Temeritas pulla
 - Temeritas pulla (Denis, 1933) [ACCEPTED SPECIES 9817:559JP nidx=null]
 + Temeritas pulla da Silva Medeiros, G & Bellini, BC, 2019 [SYNONYM SPECIES 9820:8Z7JT nidx=null parent=7BPFX]
Tephritis glaciatrix
 - Tephritis glaciatrix (Enderlein, 1934) [ACCEPTED SPECIES 9817:55BZZ nidx=null]
 + Tephritis glaciatrix (Enderlein, 1933) [ACCEPTED SPECIES 9820:8YWG7 nidx=null]
Tephritis hyoscyami
 - Tephritis hyoscyami De Geer, 1776 [PROVISIONALLY_ACCEPTED SPECIES 9817:898MV nidx=null]
 - Tephritis hyoscyami (Linnaeus, 1758) [ACCEPTED SPECIES 9817:8W83J nidx=null]
 + Tephritis hyoscyami (Linnaeus, 1758) [ACCEPTED SPECIES 9820:8YWG8 nidx=null]
Terebellum
 - Terebellum Lamarck, 1798 [ACCEPTED GENUS 9817:7PJ76 nidx=null]
 + Terebellum Bruguière, 1798 [ACCEPTED GENUS 9820:8YS9T nidx=null]
Terrapotamon aipooae
 - Terrapotamon aipooae P.K.L. Ng, 1986 [SYNONYM SPECIES 9817:55HX9 nidx=null parent=6NFVC]
 + Terrapotamon aipooae PKL Ng, 1986 [SYNONYM SPECIES 9820:8YZ2J nidx=null parent=8YXLF]
Tetanops impunctata
 - Tetanops impunctata Loew [ACCEPTED SPECIES 9817:8FDR2 nidx=null]
 + Tetanops impunctata Loew, 1854 [SYNONYM SPECIES 9820:55K4Y nidx=null parent=55K4X]
Tetracanthella arctica
 - Tetracanthella arctica [AMBIGUOUS_SYNONYM SPECIES 9817:55L4R nidx=null parent=55L5V]
 + Tetracanthella arctica MacLean et al., 1978 [SYNONYM SPECIES 9820:8Z2JW nidx=null parent=55L7K]
 + Tetracanthella arctica Babenko, 2010 [SYNONYM SPECIES 9820:8Z2JX nidx=null parent=55L7K]
 + Tetracanthella arctica Deharveng, 1987 [SYNONYM SPECIES 9820:8Z2JY nidx=null parent=55L7K]
 + Tetracanthella arctica Martynova, 1971 [SYNONYM SPECIES 9820:8Z2JZ nidx=null parent=55L7K]
 + Tetracanthella arctica Potapov, M, Brinev, A & Sun, X, 2019 [SYNONYM SPECIES 9820:8Z2K2 nidx=null parent=55L7K]
 + Tetracanthella arctica Babenko, 2017 [SYNONYM SPECIES 9820:8Z2K3 nidx=null parent=55L7K]
 + Tetracanthella arctica Bondarenko, 1975 [SYNONYM SPECIES 9820:8Z2K4 nidx=null parent=55L7K]
 + Tetracanthella arctica Christiansen & Bellinger, 1980 [SYNONYM SPECIES 9820:8Z2K5 nidx=null parent=55L7K]
 + Tetracanthella arctica Babenko & Fjellberg, 2006 [SYNONYM SPECIES 9820:8Z2K6 nidx=null parent=55L7K]
Tetracanthella ethelae
 - Tetracanthella ethelae Paclt, J, 1961 [AMBIGUOUS_SYNONYM SPECIES 9817:7C2WX nidx=null parent=55L6N]
 + Tetracanthella ethelae Cassagnau, P, 1959 [SYNONYM SPECIES 9820:8Z2K7 nidx=null parent=55L5T]
Tetracanthella matthesii
 - Tetracanthella matthesii da Gama, 1959 [ACCEPTED SPECIES 9817:55L6N nidx=null]
 - Tetracanthella matthesii da Gama, 1959 [AMBIGUOUS_SYNONYM SPECIES 9817:55L6P nidx=null parent=55L68]
 + Tetracanthella matthesii Gisin, H, 1960 [SYNONYM SPECIES 9820:8Z2KB nidx=null parent=55L68]
Tetracanthella wahlgreni
 - Tetracanthella wahlgreni [AMBIGUOUS_SYNONYM SPECIES 9817:55L86 nidx=null parent=55L5V]
 + Tetracanthella wahlgreni Cassagnau, P, 1953 [SYNONYM SPECIES 9820:8Z2KJ nidx=null parent=55L88]
 + Tetracanthella wahlgreni Folsom, 1937 [SYNONYM SPECIES 9820:8Z2KK nidx=null parent=55L7K]
 + Tetracanthella wahlgreni Hammer, 1944 [SYNONYM SPECIES 9820:8Z2KL nidx=null parent=55L4S]
 + Tetracanthella wahlgreni Hammer, 1953 [SYNONYM SPECIES 9820:8Z2KM nidx=null parent=55L7K]
 + Tetracanthella wahlgreni Christiansen & Bellinger, 1980 [SYNONYM SPECIES 9820:8Z2KN nidx=null parent=55L4S]
 + Tetracanthella wahlgreni Weber, 1950 [SYNONYM SPECIES 9820:8Z2KP nidx=null parent=55L7K]
 + Tetracanthella wahlgreni Hammer, 1938 [SYNONYM SPECIES 9820:8Z2KQ nidx=null parent=55L7K]
 + Tetracanthella wahlgreni Cassagnau, P, 1959 [SYNONYM SPECIES 9820:8Z2KR nidx=null parent=55L88]
 + Tetracanthella wahlgreni Cassagnau, P, 1959 [SYNONYM SPECIES 9820:8Z2KS nidx=null parent=55L4S]
 + Tetracanthella wahlgreni Folsom, 1919 [SYNONYM SPECIES 9820:8Z2KT nidx=null parent=55L7K]
 + Tetracanthella wahlgreni Hurd & Lindquist, 1958 [SYNONYM SPECIES 9820:8Z2KV nidx=null parent=55L7K]
Tetrastemma flavidum var. longissimum
 - Tetrastemma flavidum var. longissimum [SYNONYM VARIETY 9817:5RRZN nidx=null parent=55SFF]
 + Tetrastemma flavidum var. longissimum [SYNONYM VARIETY 9820:8Z3PY nidx=null parent=55SFF]
Thalamita chaptali
 - Thalamita chaptali (Audouin & Savigny, 1817) [SYNONYM SPECIES 9817:55Z4G nidx=null parent=55Z4F]
 + Thalamita chaptali (Audouin, 1826) [SYNONYM SPECIES 9820:8YZB2 nidx=null parent=55Z4F]
Thalamita poissoni
 - Thalamita poissoni (Audouin & Savigny, 1817) [SYNONYM SPECIES 9817:7X2FJ nidx=null parent=55Z6H]
 + Thalamita poissoni (Audouin, 1826) [SYNONYM SPECIES 9820:8YZB3 nidx=null parent=55Z6H]
Thalassoma hardwicke
 - Thalassoma hardwicke (Bennett, 1830) [ACCEPTED SPECIES 9817:55ZN4 nidx=null]
 + Thalassoma hardwicke (Bennett, 1830) [ACCEPTED SPECIES 9820:8YZBB nidx=null]
Thamnocephalus
 - Thamnocephalus Packard, 1877 [ACCEPTED SUBGENUS 9817:8W44Y nidx=null]
 + Thamnocephalus Packard, 1877 [ACCEPTED SUBGENUS 9820:7Q47Q nidx=null]
Thecophora distincta
 - Thecophora distincta (Wiedemann, 1824) [ACCEPTED SPECIES 9817:5674X nidx=null]
 + Thecophora distincta (Meigen & Wiedemann, 1820) [ACCEPTED SPECIES 9820:8YWGH nidx=null]
Theodoxus dniestroviensis
 - Theodoxus dniestroviensis Put', 1972 [SYNONYM SPECIES 9817:7TCJP nidx=null parent=56C5W]
 + Theodoxus dniestroviensis Put', 1957 [SYNONYM SPECIES 9820:8YZBF nidx=null parent=56C5W]
Thereva aurata
 - Thereva aurata Loew [ACCEPTED SPECIES 9817:8FF4L nidx=null]
 + Thereva aurata Loew, 1854 [AMBIGUOUS_SYNONYM SPECIES 9820:56D3Q nidx=null parent=56D58]
 + Thereva aurata Harris, 1835 [AMBIGUOUS_SYNONYM SPECIES 9820:56D3R nidx=null parent=56D69]
Thereva speculifera
 - Thereva speculifera (Enderlein, 1934) [ACCEPTED SPECIES 9817:7BVDW nidx=null]
 + Thereva speculifera (Enderlein, 1933) [ACCEPTED SPECIES 9820:8YWGP nidx=null]
Thienemanniella caspersi
 - Thienemanniella caspersi Saether & Ferrington, 2003 [ACCEPTED SPECIES 9817:56GJX nidx=null]
 + Thienemanniella caspersi Saether, 2002 [ACCEPTED SPECIES 9820:8YWGQ nidx=null]
Thienemanniella okigrata
 - Thienemanniella okigrata Sasa, 1991 [ACCEPTED SPECIES 9817:7C8QX nidx=null]
 + Thienemanniella okigrata Sasa, 1990 [ACCEPTED SPECIES 9820:8YWGS nidx=null]
Threticus optabilis
 - Threticus optabilis Krek, 1971 [ACCEPTED SPECIES 9817:56LRH nidx=null]
 + Threticus optabilis Krek, 1970 [ACCEPTED SPECIES 9820:8YWGV nidx=null]
Thuiaria subthuja
 - Thuiaria subthuja (Fenyuk, 1947) [ACCEPTED SPECIES 9817:56NPV nidx=null]
 + Thuiaria subthuja Feniuk, 1947 [ACCEPTED SPECIES 9820:8YPY8 nidx=null]
Thyrolambrus leprosus
 - Thyrolambrus leprosus Nobili, 1905 [SYNONYM SPECIES 9817:7C9K5 nidx=null parent=33ZFB]
 + Thyrolambrus leprosus (Nobili, 1906) [SYNONYM SPECIES 9820:8YZBP nidx=null parent=33ZFB]
Thysanoures puce
 - Thysanoures puce de glacier Desor, E, 1841 [SYNONYM SPECIES 9817:56TYK nidx=null parent=354H9]
 + Thysanoures puce du Mont-Rose Agassiz M in Desor, E, 1841 [SYNONYM SPECIES 9820:8Z7MJ nidx=null parent=354H9]
Tibicen superb
 - Tibicen superb Fitch, 1855 [SYNONYM SPECIES 9817:8XWSW nidx=null parent=6S9G3]
 + Tibicen superb Fitch, 1855 [SYNONYM SPECIES 9820:8Z56F nidx=null parent=6S9G3]
Tigridemyia pictipes
 - Tigridemyia pictipes Bigot, 1882 [SYNONYM SPECIES 9817:8FFM5 nidx=null parent=8FFM4]
 + Tigridemyia pictipes Bigot, 1883 [SYNONYM SPECIES 9820:8YWH2 nidx=null parent=8FFM4]
Tilia officinarum flava
 - Tilia officinarum flava (Wolny) Hayek [SYNONYM INFRASPECIFIC_NAME 9817:8XZC4 nidx=null parent=5LJWC]
 + Tilia officinarum flava (Wolny) Hayek [SYNONYM INFRASPECIFIC_NAME 9820:8Z64C nidx=null parent=5LJWC]
Tilia officinarum grandifolia
 - Tilia officinarum grandifolia (Ehrh. ex Hoffm.) Hayek [SYNONYM INFRASPECIFIC_NAME 9817:8XZC5 nidx=null parent=7CC28]
 + Tilia officinarum grandifolia (Ehrh. ex Hoffm.) Hayek [SYNONYM INFRASPECIFIC_NAME 9820:8Z64D nidx=null parent=7CC28]
Tipula ruficollis
 - Tipula ruficollis Thunberg, 1789 [ACCEPTED SPECIES 9817:8FG62 nidx=null]
 + Tipula ruficollis Fabricius, 1781 [SYNONYM SPECIES 9820:8YWKN nidx=null parent=4K2NR]
Tiwaripotamon vixuyenense
 - Tiwaripotamon vixuyenense H.-T. Shih & Do, 2014 [ACCEPTED SPECIES 9817:579KF nidx=null]
 + Tiwaripotamon vixuyenense HT Shih & Do, 2014 [ACCEPTED SPECIES 9820:8YZC5 nidx=null]
Tocama laevipennis
 - Tocama laevipennis (Blanchard, 1851) [ACCEPTED SPECIES 9817:7CG9V nidx=null]
 + Tocama laevipennis (Blanchard, 1850) [ACCEPTED SPECIES 9820:8YX9C nidx=null]
Tomocerini
 - Tomocerini Absolon, K, 1903 [SYNONYM FAMILY 9817:6272R nidx=null parent=626R2]
 + Tomocerini Börner C, 1906 [ACCEPTED TRIBE 9820:8Z37H nidx=null]
Tomocerus minor
 - Tomocerus minor (Lubbock, J, 1862) [ACCEPTED SPECIES 9817:7CGXP nidx=null]
 + Tomocerus minor Uchida, 1953 [AMBIGUOUS_SYNONYM SPECIES 9820:8Z2NW nidx=null parent=8Z7QF]
 + Tomocerus minor Stach, 1964 [AMBIGUOUS_SYNONYM SPECIES 9820:8Z2NY nidx=null parent=8Z7QF]
 + Tomocerus minor Islam, S, Alim, A & Hossain, M, 2014 [AMBIGUOUS_SYNONYM SPECIES 9820:8Z2NZ nidx=null parent=35R5J]
Tomocerus ocreatus
 - Tomocerus ocreatus Denis, 1948 [ACCEPTED SPECIES 9817:7CGZK nidx=null]
 + Tomocerus ocreatus Stach, 1965 [SYNONYM SPECIES 9820:8Z57F nidx=null parent=8Z7QF]
 + Tomocerus ocreatus Stach, 1964 [SYNONYM SPECIES 9820:8Z57G nidx=null parent=8Z7QF]
 + Tomocerus ocreatus Martynova, 1977 [SYNONYM SPECIES 9820:8Z57H nidx=null parent=8Z7QF]
 + Tomocerus ocreatus Lee, 1975 [SYNONYM SPECIES 9820:8Z57J nidx=null parent=8Z7QF]
 + Tomocerus ocreatus Yosii, R, 1977 [SYNONYM SPECIES 9820:8Z57L nidx=null parent=8Z7QF]
 + Tomocerus ocreatus Chiba, 1968 [SYNONYM SPECIES 9820:8Z57N nidx=null parent=8Z7QF]
Tomocerus varius
 - Tomocerus varius Ma, Y-T, Chen, J-X & Christiansen, K, 2003 [SYNONYM SPECIES 9817:57DC9 nidx=null parent=57D7C]
 + Tomocerus varius Handschin, E in Dahl, F, 1929 [SYNONYM SPECIES 9820:8Z585 nidx=null parent=57D7C]
Tomocerus vulgaris
 - Tomocerus vulgaris (Tullberg, 1871) [ACCEPTED SPECIES 9817:57DCG nidx=null]
 - Tomocerus vulgaris Japanese records =? [AMBIGUOUS_SYNONYM SPECIES 9817:57DCH nidx=null parent=57DCC]
 + Tomocerus vulgaris Ruppel, 1953 [AMBIGUOUS_SYNONYM SPECIES 9820:8Z2P4 nidx=null parent=8Z56Q]
 + Tomocerus vulgaris Yosii, 1954 [AMBIGUOUS_SYNONYM SPECIES 9820:8Z2P5 nidx=null parent=8Z572]
Tomopteris smithii
 - Tomopteris smithii Verrill, 1880 [ACCEPTED SPECIES 9817:57DQZ nidx=null]
 + Tomopteris smithii Verrill, 1879 [ACCEPTED SPECIES 9820:8YWXV nidx=null]
Trichius mandarinus
 - Trichius mandarinus Redtenbacher, 1867 [SYNONYM SPECIES 9817:589JM nidx=null parent=6G8TY]
 + Trichius mandarinus Redtenbacher, 1868 [SYNONYM SPECIES 9820:8YX9D nidx=null parent=6G8TY]
Tricholepis
 - Tricholepis Blanchard, 1851 [ACCEPTED GENUS 9817:63W43 nidx=null]
 + Tricholepis Blanchard, 1850 [ACCEPTED GENUS 9820:8YSDH nidx=null]
Trichophoromyia
 - Trichophoromyia [ACCEPTED SUBGENUS 9817:8GNB nidx=null]
 + Trichophoromyia [ACCEPTED GENUS 9820:8YPXV nidx=null]
Trichophthalma (Eurygastromyia) andina
 - Trichophthalma (Eurygastromyia) andina (Philippi, 1865) [ACCEPTED SPECIES 9817:8FHQH nidx=null]
 + Trichophthalma (Eurygastromyia) andina (Philippi, 1862) [ACCEPTED SPECIES 9820:8YWPF nidx=null]
Trichopygomyia
 - Trichopygomyia [ACCEPTED SUBGENUS 9817:8GNG nidx=null]
 + Trichopygomyia [ACCEPTED GENUS 9820:8YQWW nidx=null]
Trichotanypus stilifer
 - Trichotanypus stilifer Kieffer, 1918 [ACCEPTED SPECIES 9817:58L4Y nidx=null]
 + Trichotanypus stilifer Kieffer, 1915 [SYNONYM SPECIES 9820:8YWPP nidx=null parent=84X]
Trigonia lamarckii
 - Trigonia lamarckii Matheron, 1842 [AMBIGUOUS_SYNONYM SPECIES 9817:7D498 nidx=null parent=4923M]
 + Trigonia lamarckii Matheron, 1843 [SYNONYM SPECIES 9820:8YZD4 nidx=null parent=8YY5R]
Trigonometopus canus
 - Trigonometopus canus [ACCEPTED SPECIES 9817:8N4WH nidx=null]
 - Trigonometopus canus Meijere, 1916 [SYNONYM SPECIES 9817:8N4WJ nidx=null parent=8N4WH]
 + Trigonometopus canus Meijere, 1916 [ACCEPTED SPECIES 9820:58SK9 nidx=null]
Tritomurus oregonensis
 - Tritomurus oregonensis Denis, 1928 [SYNONYM SPECIES 9817:594PY nidx=null parent=4KKKR]
 + Tritomurus oregonensis Denis, J-R, 1929 [SYNONYM SPECIES 9820:8Z7R5 nidx=null parent=4KKKR]
Trochatella nogieri
 - Trochatella nogieri Dautzenberg & d'Hamonville, 1887 [SYNONYM SPECIES 9817:8V2FP nidx=null parent=8V2PB]
 + Trochatella nogieri Dautzenberg & d'Hamonville, 1888 [SYNONYM SPECIES 9820:8Z7R6 nidx=null parent=8Z6DD]
Trochonanina helicinoides
 - Trochonanina helicinoides (L. Pfeiffer, 1849) [ACCEPTED SPECIES 9817:8R7XR nidx=null]
 + Trochonanina helicinoides (L. Pfeiffer, 1849) [SYNONYM SPECIES 9820:7TFVK nidx=null parent=7R2CK]
Trochus lyonsii
 - Trochus lyonsii Leach, 1852 [SYNONYM SPECIES 9817:5987Q nidx=null parent=PS2Z]
 + Trochus lyonsii Leach, 1850 [SYNONYM SPECIES 9820:8YZDK nidx=null parent=PS2Z]
Troglodytes aedon parkmani
 - Troglodytes aedon parkmani Audubon, 1839 [SYNONYM SUBSPECIES 9817:7L6TH nidx=null parent=8XSXD]
 + Troglodytes aedon parkmani Audubon, 1839 [SYNONYM SUBSPECIES 9820:8Z3R5 nidx=null parent=8Z3R4]
Troglodytes aedon parkmanii
 - Troglodytes aedon parkmanii Audubon, 1839 [ACCEPTED SUBSPECIES 9817:8XSXD nidx=null]
 + Troglodytes aedon parkmanii Audubon, 1839 [ACCEPTED SUBSPECIES 9820:8Z3R4 nidx=null]
Trombiculidae
 - Trombiculidae [ACCEPTED FAMILY 9817:HJP nidx=null]
 + Trombiculidae Ewing, 1929 [ACCEPTED FAMILY 9820:8YQCL nidx=null]
Trypeta trifasciata
 - Trypeta trifasciata Shiraki, 1933 [ACCEPTED SPECIES 9817:89BV8 nidx=null]
 + Trypeta trifasciata Say, 1831 [SYNONYM SPECIES 9820:59FSL nidx=null parent=TDVL]
Tuberculanostoma
 - Tuberculanostoma [ACCEPTED GENUS 9817:63W7M nidx=null]
 + Tuberculanostoma [ACCEPTED SUBGENUS 9820:8YQPS nidx=null]
Tubificinae
 - Tubificinae Eisen, 1879 [ACCEPTED SUBFAMILY 9817:84KZB nidx=null]
 + Tubificinae Claus, 1876 [ACCEPTED SUBFAMILY 9820:8YR3F nidx=null]
Tubularia penicillus
 - Tubularia penicillus Fabricius, 1780 [SYNONYM SPECIES 9817:59K36 nidx=null parent=5YBH3]
 + Tubularia penicillus [sensu] Müller, 1776 [SYNONYM SPECIES 9820:8YWXW nidx=null parent=4TV2B]
Typhis muticus
 - Typhis muticus J. de C. Sowerby, 1834 [SYNONYM SPECIES 9817:59VBZ nidx=null parent=3RVKP]
 + Typhis muticus J. de C. Sowerby, 1835 [SYNONYM SPECIES 9820:8YZFM nidx=null parent=8YXML]
Typhlocarcinops takedai
 - Typhlocarcinops takedai P.K.L. Ng, 1987 [SYNONYM SPECIES 9817:7Z6MZ nidx=null parent=59VH7]
 + Typhlocarcinops takedai PKL Ng, 1987 [SYNONYM SPECIES 9820:59VHC nidx=null parent=59VH7]
Typhlogastrura valentini
 - Typhlogastrura valentini Thibaud, 1966 [ACCEPTED SPECIES 9817:59WRV nidx=null]
 + Typhlogastrura valentini Thibaud, 1996 [ACCEPTED SPECIES 9820:8Z2RG nidx=null]
Unio diluvii
 - Unio diluvii A. d'Orbigny, 1842 [SYNONYM SPECIES 9817:8LTL5 nidx=null parent=8LTGW]
 + Unio diluvii A. d'Orbigny, 1843 [SYNONYM SPECIES 9820:8Z7S2 nidx=null parent=8Z67D]
Uramya acuminata
 - Uramya acuminata (Wulp, 1890) [ACCEPTED SPECIES 9817:7DNJZ nidx=null]
 + Uramya acuminata (Bigot, 1885) [ACCEPTED SPECIES 9820:7DNK2 nidx=null]
Usia grisea
 - Usia grisea Paramonov [ACCEPTED SPECIES 9817:8FL83 nidx=null]
 + Usia grisea Efflatoun, 1945 [SYNONYM SPECIES 9820:7F38V nidx=null parent=8FL6B]
Valenciennesia boeckhi
 - Valenciennesia boeckhi Halaváts, 1887 [SYNONYM SPECIES 9817:7F9CT nidx=null parent=4N7YQ]
 + Valenciennesia boeckhi Halaváts, 1886 [SYNONYM SPECIES 9820:8YZG5 nidx=null parent=8YYLY]
Vanchidiplosis agraensis
 - Vanchidiplosis agraensis (Rao, 1951) [ACCEPTED SPECIES 9817:7FDWG nidx=null]
 + Vanchidiplosis agraensis Rao, 1952 [SYNONYM SPECIES 9820:8YWQV nidx=null parent=8YW7G]
Vanchidiplosis brevipalpi
 - Vanchidiplosis brevipalpi Rao, 1956 [ACCEPTED SPECIES 9817:7FDWF nidx=null]
 + Vanchidiplosis brevipalpi Rao, 1960 [SYNONYM SPECIES 9820:8YWQW nidx=null parent=8YW7G]
Ventidioides
 - Ventidioides Hungerford & Matsuda, 1960 [ACCEPTED SUBGENUS 9817:8W5FM nidx=null]
 + Ventidioides Hungerford & Matsuda, 1960 [ACCEPTED SUBGENUS 9820:7Q8C8 nidx=null]
Ventidiopsis
 - Ventidiopsis Miyamoto, 1967 [ACCEPTED SUBGENUS 9817:8W5FN nidx=null]
 + Ventidiopsis Miyamoto, 1967 [ACCEPTED SUBGENUS 9820:7Q68N nidx=null]
Ventidius
 - Ventidius Distant, 1910 [ACCEPTED SUBGENUS 9817:8W59P nidx=null]
 + Ventidius Distant, 1910 [ACCEPTED SUBGENUS 9820:7Q68P nidx=null]
Verrucella furcata
 - Verrucella furcata (Lamarck, 1816) [ACCEPTED SPECIES 9817:5B8K9 nidx=null]
 + Verrucella furcata (Lamarck, 1815) [ACCEPTED SPECIES 9820:8YZHB nidx=null]
Verrucella granulata
 - Verrucella granulata (Esper, 1788) [ACCEPTED SPECIES 9817:7FRFZ nidx=null]
 + Verrucella granulata (Esper, 1791) [ACCEPTED SPECIES 9820:8YZHC nidx=null]
Viannamyia
 - Viannamyia [ACCEPTED SUBGENUS 9817:8GT3 nidx=null]
 + Viannamyia [ACCEPTED GENUS 9820:8YPXW nidx=null]
Villa fumipennis
 - Villa fumipennis (Wiedemann, 1828) [ACCEPTED SPECIES 9817:7G3Z7 nidx=null]
 + Villa fumipennis (Meigen, 1820) [ACCEPTED SPECIES 9820:8YWQY nidx=null]
Villiophora
 - Villiophora E. Cutler & Cutler, 1985 [ACCEPTED SUBGENUS 9817:8W5DV nidx=null]
 + Villiophora E. Cutler & Cutler, 1985 [ACCEPTED SUBGENUS 9820:7Q8CD nidx=null]
Viminella hystrix
 - Viminella hystrix (Valenciennes, 1855) [ACCEPTED SPECIES 9817:5BFF4 nidx=null]
 + Viminella hystrix (Milne Edwards & Haime, 1857) [ACCEPTED SPECIES 9820:8YZHS nidx=null]
Vitrinoconus scalarinus
 - Vitrinoconus scalarinus (L. Pfeiffer, 1851) [SYNONYM SPECIES 9817:8VQ9L nidx=null parent=5ZTGH]
 + Vitrinoconus scalarinus (L. Pfeiffer, 1852) [SYNONYM SPECIES 9820:8Z7S5 nidx=null parent=8YWLB]
Vivipara nodosocostata
 - Vivipara nodosocostata Halaváts, 1887 [SYNONYM SPECIES 9817:5BN79 nidx=null parent=5BNK4]
 + Vivipara nodosocostata Halaváts, 1886 [SYNONYM SPECIES 9820:8YZHW nidx=null parent=8YZJ6]
Viviparus nodosocostatus
 - Viviparus nodosocostatus Halaváts, 1887 [ACCEPTED SPECIES 9817:5BNK4 nidx=null]
 + Viviparus nodosocostatus Halaváts, 1886 [ACCEPTED SPECIES 9820:8YZJ6 nidx=null]
Volucella violacea
 - Volucella violacea Wiedemann, 1830 [PROVISIONALLY_ACCEPTED SPECIES 9817:89DCM nidx=null]
 + Volucella violacea Macquart, 1842 [AMBIGUOUS_SYNONYM SPECIES 9820:5BPJR nidx=null parent=6T6WD]
 + Volucella violacea Say, 1829 [AMBIGUOUS_SYNONYM SPECIES 9820:8YWR4 nidx=null parent=8BKQH]
Volutharpa
 - Volutharpa [ACCEPTED GENUS 9817:8784 nidx=null]
 + Volutharpa P. Fischer, 1856 [ACCEPTED GENUS 9820:7PKXM nidx=null]
Volva longirostrata
 - Volva longirostrata (G. B. Sowerby II, 1829) [SYNONYM SPECIES 9817:7TMPW nidx=null parent=4G2Q3]
 + Volva longirostrata Cernohorsky, 1971 [SYNONYM SPECIES 9820:8YZJD nidx=null parent=4G2Q3]
Volvarina pellucida
 - Volvarina pellucida Tenison Woods, 1877 [SYNONYM SPECIES 9817:7FSRH nidx=null parent=6YKWY]
 + Volvarina pellucida (Tenison Woods, 1879) [SYNONYM SPECIES 9820:8YZJF nidx=null parent=6YKWY]
Walchiidae
 - Walchiidae [ACCEPTED FAMILY 9817:HVG nidx=null]
 + Walchiidae Ewing, 1946 [SYNONYM FAMILY 9820:8Z37K nidx=null parent=8YQCL]
Xena straminea
 - Xena straminea Nartshuk, 1964 [SYNONYM SPECIES 9817:8FN2X nidx=null parent=8FN2W]
 + Xena straminea Nartshuk, 1964 [ACCEPTED SPECIES 9820:7G94T nidx=null]
Xenylla abichiana
 - Xenylla abichiana Winter, 1963 [ACCEPTED SPECIES 9817:5CBYF nidx=null]
 + Xenylla abichiana [ACCEPTED SPECIES 9820:8Z2SM nidx=null]
Xenylla brevicauda
 - Xenylla brevicauda Reuter, 1895 [SYNONYM SPECIES 9817:5CBZ2 nidx=null parent=5CC3J]
 - Xenylla brevicauda Börner, 1901, sensu Börner, 1903 Syn.: Xenylla Birói Stach, 1926 [SYNONYM SPECIES 9817:5CBZ5 nidx=null parent=5CC5X]
 + Xenylla brevicauda Linnaniemi, 1912 [SYNONYM SPECIES 9820:8Z2TN nidx=null parent=5CC3J]
 + Xenylla brevicauda Jordana, 1981 [SYNONYM SPECIES 9820:8Z2TP nidx=null parent=5CC6B]
Xenylla kenyensis
 - Xenylla kenyensis da Gama, 1969 [ACCEPTED SPECIES 9817:7FVYS nidx=null]
 + Xenylla kenyensis da Gama, 1983 [ACCEPTED SPECIES 9820:8Z2TT nidx=null]
Xenylla maritima
 - Xenylla maritima Thibaud al, 2004 [AMBIGUOUS_SYNONYM SPECIES 9817:5CC3G nidx=null parent=5CC45]
 - Xenylla maritima Paclt, 1959 [SYNONYM SPECIES 9817:5CC3K nidx=null parent=7G7Z3]
 + Xenylla maritima Stach, J, 1949 [SYNONYM SPECIES 9820:8YZJL nidx=null parent=5CC5R]
 + Xenylla maritima Stach, J, 1949 [SYNONYM SPECIES 9820:8YZJM nidx=null parent=5CC4Q]
 + Xenylla maritima Reuter, OM, 1895 [SYNONYM SPECIES 9820:8YZJN nidx=null parent=5CC2P]
 + Xenylla maritima Babenko et al., 1994 [SYNONYM SPECIES 9820:8YZJP nidx=null parent=5CC5R]
 + Xenylla maritima Babenko et al., 1994 [SYNONYM SPECIES 9820:8YZJQ nidx=null parent=5CC4Q]
 + Xenylla maritima Babenko et al., 1994 [SYNONYM SPECIES 9820:8YZJR nidx=null parent=5CC45]
 + Xenylla maritima Tullberg, 1872 [SYNONYM SPECIES 9820:8YZJT nidx=null parent=5CC2P]
 + Xenylla maritima Tullberg, 1871 [SYNONYM SPECIES 9820:8YZJV nidx=null parent=5CC2P]
 + Xenylla maritima Womersley, 1933 [SYNONYM SPECIES 9820:8YZJW nidx=null parent=7G7Z3]
Xiphopsathryomyia
 - Xiphopsathryomyia [ACCEPTED GENUS 9817:8H2W3 nidx=null]
 + Xiphopsathryomyia [ACCEPTED SUBGENUS 9820:8YQQ6 nidx=null]
Xylonychus
 - Xylonychus Blanchard, 1851 [SYNONYM GENUS 9817:89JG nidx=null parent=63XBY]
 + Xylonychus Blanchard, 1850 [SYNONYM GENUS 9820:8YSK8 nidx=null parent=63XBY]
Xylota abiens
 - Xylota abiens Meigen, 1822 [SYNONYM SPECIES 9817:8FNJZ nidx=null parent=8FNGG]
 + Xylota abiens Wiedemann, 1822 [SYNONYM SPECIES 9820:8YWSL nidx=null parent=8FNGG]
Xylota olivaceus
 - Xylota olivaceus Meigen, 1822 [SYNONYM SPECIES 9817:8FNMW nidx=null parent=8B8X4]
 + Xylota olivaceus Wiedemann, 1822 [SYNONYM SPECIES 9820:8YWSP nidx=null parent=8YRLM]
Xylotachina vulnerans
 - Xylotachina vulnerans Mesnil, 1953 [ACCEPTED SPECIES 9817:7FXZ5 nidx=null]
 + Xylotachina vulnerans Mesnil, 1954 [ACCEPTED SPECIES 9820:8YWSR nidx=null]
Yaetanytarsus iriomotensis
 - Yaetanytarsus iriomotensis Sasa, 1991 [ACCEPTED SPECIES 9817:5CQT6 nidx=null]
 + Yaetanytarsus iriomotensis Sasa, 1990 [ACCEPTED SPECIES 9820:8YWST nidx=null]
Yoldiella derjugini
 - Yoldiella derjugini Scarlato, 1981 [ACCEPTED SPECIES 9817:5CS65 nidx=null]
 + Yoldiella derjugini Bartsch in Scarlato, 1981 [ACCEPTED SPECIES 9820:8YZK2 nidx=null]
Zaphne laxibarbiventris
 - Zaphne laxibarbiventris Xue & Dong, 2010 [ACCEPTED SPECIES 9817:5CWYM nidx=null]
 + Zaphne laxibarbiventris Xue & Dong, 2009 [ACCEPTED SPECIES 9820:8YWSZ nidx=null]
Zosteria sydneensis
 - Zosteria sydneensis (Macquart, 1834) [ACCEPTED SPECIES 9817:5D8KK nidx=null]
 + Zosteria sydneensis (Macquart, 1838) [ACCEPTED SPECIES 9820:8YWT4 nidx=null]