Between brackets is the number of accepted species
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- Biota
- Kingdom Animalia
- Phylum Acanthocephala
- Phylum Agmata †
- Phylum Animalia (awaiting allocation)
- Phylum Animalia incertae sedis
- Phylum Annelida
- Phylum Arthropoda
- Subphylum Chelicerata
- Subphylum Crustacea
- Subphylum Hexapoda
- Class Collembola
- Class Diplura
- Class Entognatha accepted as Hexapoda
- Class Insecta
- Order Alienoptera † accepted as Blattodea
- Order Amphiesmenoptera incertae sedis †
- Order Anoplura accepted as Phthiraptera
- Order Archaeognatha
- Order Archaeorthoptera (awaiting allocation) †
- Order Archaeorthoptera incertae sedis
- Order Argentinoptera †
- Order Blattodea
- Order Blattoptera †
- Order Caloneurida
- Order Caloneurodea †
- Order Cnemidolestodea †
- Order Coleoptera
- Order Coxoplectoptera †
- Order Dermaptera
- Order Diaphanopterodea †
- Order Diaphanopteroidea accepted as Diaphanopterodea †
- Order Dicliptera †
- Order Dicondylia incertae sedis
- Order Dictyoptera (awaiting allocation)
- Order Dictyoptera incertae sedis
- Order Diptera
- Family Acartophthalmidae Czerny, 1928
- Family Acroceridae Leach, 1815
- Family Agromyzidae Fallén, 1823
- Family Alinkidae Krzemiński, 1992 † accepted as Procramptonomyiidae Kovalev, 1985 †
- Family Anisopidae accepted as Anisopodidae Knab, 1912
- Family Anisopodidae Knab, 1912
- Family Ansorgiidae Evenhuis, 1994 †
- Family Antefungivoridae Rohdendorf, 1938 †
- Family Anthomyiidae Latreille, 1829
- Family Anthomyzidae Czerny, 1903
- Family Apioceridae Bigot, 1857
- Family Apsilocephalidae Nagatomi, Saigusa, Nagatomi & Lyneborg, 1991
- Family Apystomyiidae Nagatomi & Liu, 1994
- Family Archisargidae Rohdendorf, 1951 †
- Family Architendipedidae Rohdendorf, 1962 † accepted as Ptychopteridae Osten Sacken, 1862
- Family Archizelmiridae Rohdendorf, 1962 †
- Family Asilidae Latreille, 1802
- Genus Ablautatus Loew, 1874 accepted as Ablautus Loew, 1866
- Genus Ablautus Loew, 1866
- Genus Abrophila Daniels, 1987
- Genus Acanthodelphia Bigot, 1857 accepted as Proctacanthus Macquart, 1838
- Genus Acanthopleura Engel in Lindner, 1927
- Genus Acasilus Londt, 2005
- Genus Achanthodelphia Bigot, 1857 accepted as Acanthodelphia Bigot, 1857
- Genus Acnephalomyia Londt, 2010
- Genus Acnephalum Macquart, 1838
- Genus Acrochordomerus Hermann, 1920
- Genus Acronyches Hermann, 1921
- Genus Acurana Walker, 1851
- Genus Aczelia Carrera, 1955
- Genus Adelodus Hermann, 1912
- Genus Afganopogon Hradsky, 1962
- Genus Afroepitriptus Lehr, 1992
- Genus Afroestricus Scarbrough, 2005
- Genus Afroholopogon Londt, 1994
- Genus Afromelittodes Oldroyd & Bruggen, 1963
- Genus Afromochtherus Lehr, 1996
- Genus Afroscleropogon Londt, 1999
- Genus Agrostomyia Londt, 1994
- Genus Aireina Frey, 1934
- Genus Akatiomyia Londt, 2013
- Genus Albibarbefferia Artigas & Papavero, 1997
- Genus Albicoma Lehr, 1986
- Genus Alcimus Loew, 1848
- Genus Alipiolaphria Carrera, 1953
- Genus Allocotasia Wulp, 1872 accepted as Allocotosia Schiner, 1866
- Genus Allocotosia Schiner, 1866
- Genus Allomachimus Bequaert, 1964
- Genus Allopogon Schiner, 1886
- Genus Alvarenga Carrera, 1962
- Genus Alyssomyia Hull, 1962
- Genus Amathomyia Hermann, 1912
- Genus Amblyonychus
- Genus Ammodaimon Londt, 1985
- Genus Ammophilomima Enderlein, 1914
- Genus Amorimius Papavero, 2009
- Genus Amphisbetetus Hermann, 1906
- Genus Amphiscolops Hull, 1962
- Genus Anacinaces Enderlein, 1914
- Genus Anarmostus Loew, 1860
- Genus Anarolius Loew, 1844
- Genus Anasillomos Londt, 1983
- Genus Ancilorhynchus Latreille in Cuvier, 1829 accepted as Ancylorhynchus Berthold in Latreille, 1827
- Genus Ancylorhynchus Berthold in Latreille, 1827
- Genus Ancylorrhynchus accepted as Ancylorhynchus Berthold in Latreille, 1827
- Genus Andrenosoma Rondani, 1856
- Genus Aneomochtherus Lehr, 1996
- Genus Anisopogon Loew, 1874
- Genus Anisosis Hermann, 1914 † accepted as Laloides Oldroyd, 1972 †
- Genus Annamyia Pritchard, 1941
- Genus Anoplothyrea de Meijere, 1914
- Genus Antilophonotus Lindner, 1955
- Genus Antipalpus
- Genus Antipalus Loew, 1849
- Genus Antiphrisson Loew, 1849
- Genus Antiscylaticus Londt, 2010
- Genus Anypodetus Hermann, 1907
- Genus Apachekolos Martin, 1957
- Genus Aphamartania Schiner, 1866
- Genus Aphestia Schiner, 1866
- Genus Aphistima
- Genus Aphistina Oldroyd, 1972
- Genus Aphractia Artigas, Papavero & Serra, 1991
- Genus Aplestobroma
- Genus Aplestrobroma
- Genus Apoclea Macquart, 1838
- Genus Apolastauroides Artigas & Papavero, 1988
- Genus Aporema Becker, 1925
- Genus Apothechyla Hull, 1962
- Genus Apotinocerus Hull, 1956
- Genus Apoxyria Schiner, 1866
- Genus Apulvillasilus Camargo, Vieira & Fisher, 2022
- Genus Araiopogon
- Genus Araripogon Grimaldi, 1990 †
- Genus Aratus Wulp, 1898 accepted as Neoaratus Ricardo, 1913
- Genus Araucopogon Artigas & Papavero, 1988
- Genus Araujoa Artigas & Papavero, 1991
- Genus Archilaphria Enderlein, 1914
- Genus Archilestes Schiner, 1866 accepted as Archilestris Loew, 1874
- Genus Archilestris Loew, 1874
- Genus Archilestroides Artigas & Papavero, 1991
- Genus Argillemisca Lehr, 1967 †
- Genus Argyrochira Richter, 1968
- Genus Argyropogon Artigas & Papavero, 1990
- Genus Aridefferia Artigas & Papavero, 1997
- Genus Arthriticopus Enderlein, 1914
- Genus Artigasus Özdikmen, 2010
- Genus Asicya Lynch Arribálzaga, 1880
- Genus Asilella Lehr, 1970
- Genus Asiloephesus Lehr, 1992
- Genus Asilopsis Cockerell, 1920 †
- Genus Asilus Linnaeus, 1758
- Genus Asiola Daniels, 1977
- Genus Aspidopyga Carrera, 1949
- Genus Astiptomyia Londt, 2010
- Genus Astochia Becker, 1912
- Genus Astylium Rondani, 1850 accepted as Senobasis Macquart, 1839
- Genus Astylopogon De Meijere, 1913
- Genus Astylum Kertész, 1909
- Genus Asylus Schellenberg, 1803 accepted as Asilus Linnaeus, 1758
- Genus Aterpogon Hardy, 1930
- Genus Atomosia Macquart, 1838
- Genus Atomosiella Wilcox, 1937
- Genus Atonia Williston, 1889 accepted as Atoniomyia Hermann, 1912
- Genus Atoniomyia Hermann, 1912
- Genus Atractia Macquart, 1838
- Genus Atractocoma Artigas, 1970
- Genus Austenmyia Carrera, 1955
- Genus Austrosaropogon Hardy, 1934
- Genus Automolina Hermann, 1912
- Genus Backomyia Wilcox & Martin, 1957
- Genus Bactria Meigen, 1820
- Genus Bamwardaria Hradsky, 1983
- Genus Bana Londt, 1992
- Genus Bathropsis Hermann, 1912
- Genus Bathypogon Loew, 1851
- Genus Beameromyia Martin, 1957
- Genus Bisapoclea Becker, 1925
- Genus Blacodes Loew, 1874 accepted as Cophura Osten-Sacken, 1887
- Genus Blax Loew, 1872 accepted as Blacodes Loew, 1874
- Genus Blepharepium Rondani, 1848
- Genus Blepharotes Westwood in Duncan, 1840
- Genus Bohartia Hull, 1958
- Genus Bombomima Enderlein, 1914
- Genus Borapisma Hull, 1958
- Genus Brachyrhopala Macquart, 1847
- Genus Brachyrrhopala Kertész, 1909 accepted as Brachyrhopala Macquart, 1847
- Genus Brazilogaster Özdikmen, 2010
- Genus Brevirostrum Londt, 1980
- Genus Bromleyus Hardy, 1945
- Genus Bromotheres Hull, 1962
- Genus Broticosia Hull, 1958
- Genus Buckellia Curran, 1925
- Genus Burmapogon Dikow & Grimaldi, 2014 †
- Genus Cabasa Walker, 1851
- Genus Cacodaemon Schiner, 1866
- Genus Cacodaemonides Strand, 1928 †
- Genus Caenarolia Thomson, 1869
- Genus Caenorolia Williston, 1891 accepted as Caenarolia Thomson, 1869
- Genus Caenoura Londt, 2002
- Genus Callinicus Loew, 1872
- Genus Cardiasilus Soares, Camargo & Lamas, 2025
- Genus Carebaricus Artigas & Papavero, 1991
- Genus Carinefferia Artigas & Papavero, 1997
- Genus Caroncoma Londt, 1980
- Genus Catonomyia Hull, 1962
- Genus Catostola Hull, 1958
- Genus Ceilopogon Bigot, 1878 accepted as Cheilopogon Rondani, 1856
- Genus Cenochromyia Hermann, 1912
- Genus Cenopogon Wulp, 1898
- Genus Centrolaphria Enderlein, 1914
- Genus Ceratotaenia Lynch Arribálzaga, 1880
- Genus Ceraturgopsis Johnson, 1903
- Genus Ceraturgus Rondani, 1856 accepted as Ceraturgus Wiedemann, 1824
- Genus Ceraturgus Wiedemann, 1824
- Genus Cerdistus Loew, 1849
- Genus Cerotainia Schiner, 1866
- Genus Cerotainiops Curran, 1930
- Genus Cerozodus Bigot, 1857
- Genus Cesagaster Koçak & Kemal, 2009
- Genus Chalcidimorpha Westwood, 1836
- Genus Chalcidomorpha Agassiz, 1846 accepted as Chalcidimorpha Westwood, 1836
- Genus Cheilopogon Rondani, 1856 accepted as Dasypogon Meigen, 1803
- Genus Chilesus Bromley, 1932
- Genus Chilopogon Bigot, 1878 accepted as Dasypogon Meigen, 1803
- Genus Chilopogon Bezzi, 1902 accepted as Cheilopogon Rondani, 1856
- Genus Choerades Walker, 1851
- Genus Chryseutria Hardy, 1928
- Genus Chrysoceria Williston, 1907
- Genus Chrysopogon Röder, 1881
- Genus Chrysotriclis Artigas, Papavero & da Costa, 1997
- Genus Chylophaga Hull, 1962
- Genus Chymedax Hull, 1958
- Genus Cinadus Van der Wulp, 1898
- Genus Clariola Kertész, 1901
- Genus Clavator Philippi, 1865
- Genus Clephydroneura Becker, 1925
- Genus Cleptomyia Carrera, 1949
- Genus Clinopogon Bezzi, 1910
- Genus Cnodalomyia Hull, 1962
- Genus Cobalomyia Hull, 1962
- Genus Cochleariocera Artigas, Papavero & da Costa, 1997
- Genus Codula Macquart, 1850
- Genus Coelopus Becker, 1907
- Genus Coleomyia Wilcox & Martin, 1935
- Genus Colepia Daniels, 1987
- Genus Comantella Curran, 1923
- Genus Congomochtherus Oldroyd, 1970
- Genus Connomyia Londt, 1992
- Genus Conosiphon Becker, 1923
- Genus Cophinopoda Hull, 1958
- Genus Cophura Osten-Sacken, 1887
- Genus Cormansis Walker, 1851
- Genus Corymyia Londt, 1994
- Genus Craspedia Macquart, 1839
- Genus Cratolestes Hull, 1962
- Genus Cratopoda Hull, 1962
- Genus Creolestes Hull, 1962
- Genus Cretagaster Dikow & Grimaldi, 2014 †
- Genus Crobilocerus Loew, 1847
- Genus Cryptomerinx Enderlein, 1914
- Genus Cryptopogon White, 1918
- Genus Ctenodontina Enderlein, 1914
- Genus Ctenota Loew in Meigen, 1873
- Genus Cyanonedys Hermann, 1912
- Genus Cyclosocerus Bezzi, 1927
- Genus Cylicomera Lynch Arribálzaga, 1881
- Genus Cylindrophora Philippi, 1865
- Genus Cymbipyga Artigas, Papavero & da Costa, 1997
- Genus Cyphomyiactia Artigas, Papavero & Serra, 1991
- Genus Cyphotomyia Williston, 1889
- Genus Cyrtophris Bigot, 1857
- Genus Cyrtophrys Loew, 1851
- Genus Cyrtopogon Loew, 1847
- Genus Cystoprosopa Hull, 1962
- Genus Dactiliscus Rondani, 1856 accepted as Habropogon Loew, 1847
- Genus Dactyliscus Bigot, 1857 accepted as Dactiliscus Rondani, 1856
- Genus Dakinomyia Hardy, 1934
- Genus Damalina Doleschall, 1858
- Genus Damalis Fabricius, 1805
- Genus Danomyia Londt, 1993
- Genus Dapsilochaetus Hull, 1962
- Genus Daptolestes Hull, 1962
- Genus Dasipogon Rondani, 1856 accepted as Dasypogon Meigen, 1803
- Genus Dasophrys Loew, 1857
- Genus Daspletis Loew, 1858
- Genus Dassylina Bromley, 1935 accepted as Dasyllina Bromley, 1935
- Genus Dasycyrton Philippi, 1865
- Genus Dasylechia Williston, 1907
- Genus Dasyllina Bromley, 1935
- Genus Dasyllis Loew, 1851
- Genus Dasypecus Philippi, 1865
- Genus Dasypogon Meigen, 1803
- Genus Dasythrix Loew, 1851
- Genus Dasytrix
- Genus Daulopogon Loew, 1874
- Genus Deromyia Philippi, 1865
- Genus Despotiscus Bezzi, 1928
- Genus Dichaetothyrea Meijere, 1914
- Genus Diciclus Van der Wulp, 1869 accepted as Doryclus Jaennicke, 1867
- Genus Dicolonus Loew, 1866
- Genus Dicranus Loew, 1851
- Genus Dicropaltum Martin, 1975
- Genus Didysmachus Lehr, 1996 †
- Genus Dikowmyia Londt, 2002
- Genus Dinozabrus Hull, 1962
- Genus Dioctobroma Hull, 1962
- Genus Dioctria Meigen, 1803
- Genus Dioctrodes Coquillett, 1904
- Genus Dioctrya Oken, 1815 accepted as Dioctria Meigen, 1803
- Genus Diogmites Loew, 1866
- Genus Diplosynapsis
- Genus Discocephala Macquart, 1838 accepted as Holcocephala Jaennicke, 1867
- Genus Discodamalis Karsch, 1887
- Genus Dissmeryngodes Hermann, 1912
- Genus Dizonias Loew, 1866
- Genus Dogonia Oldroyd, 1970
- Genus Dolichodes Macquart, 1839
- Genus Dolichoscius Janssens, 1954
- Genus Dolopus Daniels, 1987
- Genus Doryclus Jaennicke, 1867
- Genus Dyciclus Van der Wulp, 1869 accepted as Doryclus Jaennicke, 1867
- Genus Dysclytus Loew, 1857
- Genus Dyseris Loew, 1857
- Genus Dysmachus Loew, 1860
- Genus Dystolmus Lehr, 1996 †
- Genus Eccoptopus Loew, 1860
- Genus Eccritosia Schiner, 1866
- Genus Echinitropis Martin, 1975
- Genus Echthistus Loew, 1849
- Genus Echthodopa Loew, 1866
- Genus Echthopoda Loew, 1872 accepted as Echthodopa Loew, 1866
- Genus Eclipsis Bezzi, 1908
- Genus Ecoptopus
- Genus Efferia Coquillett, 1893
- Genus Eicherax Bigot, 1857
- Genus Eichoichemus Bigot, 1857
- Genus Elaeotoma Costa, 1863
- Genus Elasmocera Rondani, 1845 accepted as Ancylorhynchus Berthold in Latreille, 1827
- Genus Elegopogon
- Genus Emphysomera Schiner, 1866
- Genus Empodiodes Oldroyd, 1972
- Genus Enarmostus Walker, 1854 accepted as Euarmostus Walker, 1851
- Genus Enchocera Blanchard, 1845 accepted as Ancylorhynchus Berthold in Latreille, 1827
- Genus Engelepogon Lehr, 1992
- Genus Enigmomorphus Hermann, 1912
- Genus Epaphroditus Hermann, 1912
- Genus Epholkiolaphria Hermann, 1914
- Genus Epiblepharis Bezzi, 1908
- Genus Epiklisis Becker, 1925
- Genus Epilamyra Becker, 1912
- Genus Epipamponeurus Becker, 1920
- Genus Epithriptus Schiner, 1857 accepted as Epitriptus Loew, 1849
- Genus Epitreptus Walker, 1855 accepted as Epitriptus Loew, 1849
- Genus Epitriptus Loew, 1849
- Genus Erax Scopoli, 1763
- Genus Eraxasilus Carrera, 1959
- Genus Erebunus Rikhter, 1966
- Genus Eremisca Zinov'eva, 1956 accepted as Eremisca Hull, 1962
- Genus Eremisca Hull, 1962
- Genus Eremodromus Zimin, 1928
- Genus Eremomyia Artigas, 1970
- Genus Eremonotus Theodor, 1980
- Genus Eretomyia Artigas, 1971
- Genus Eriopogon Loew, 1847
- Genus Eristichus Bigot, 1857 accepted as Neoeristicus Osten-Sacken, 1878
- Genus Eristicus Loew, 1848 accepted as Neoeristicus Osten-Sacken, 1878
- Genus Erythropogon White, 1914
- Genus Esatanas Lehr, 1986
- Genus Etrurus Lehr, 1992
- Genus Euarmostus Walker, 1851
- Genus Eucyrtopogon Curran, 1923
- Genus Eudioctria Wilcox & Martin, 1941
- Genus Eumecosoma Schiner, 1866
- Genus Eupalamus Jaennicke, 1867
- Genus Eurhabdus Aldrich, 1923
- Genus Euscelidia Westwood, 1850
- Genus Eutolmus Loew, 1848
- Genus Eutrichodes Hermann, 1920 accepted as Hexameritia Speiser, 1920
- Genus Filiolus Lehr, 1967
- Genus Fishermyia Londt, 2012
- Genus Furcilla Martin, 1975
- Genus Galactopogon Engel in Lindner, 1929
- Genus Gastricheilus Bigot, 1857 accepted as Gastrichelius Rondani, 1856
- Genus Gastrichelius Rondani, 1856 accepted as Triclis Loew, 1851
- Genus Gazunda
- Genus Gerrolasius Hermann, 1920
- Genus Gibbasilus Londt, 1986
- Genus Glaphyropyga Schiner, 1866
- Genus Glyphotriclis Hermann, 1920
- Genus Goneccalypsis Hermann, 1912
- Genus Gongromyia Londt, 2002
- Genus Gonioscelis Schiner, 1866
- Genus Gonipes Stephens, 1829
- Genus Gonypes Latreille, 1804
- Genus Gonypus Latreille in Cuvier, 1829 accepted as Gonypes Latreille, 1804
- Genus Grajahua Artigas & Papavero, 1991
- Genus Graptostylus Hull, 1962
- Genus Grypoctonus Speiser, 1928
- Genus Gymnotriclis Artigas, Papavero & da Costa, 1997
- Genus Habropogon Loew, 1847
- Genus Hadrokolos Martin, 1959
- Genus Halictosoma Rondani, 1873 accepted as Nusa Walker, 1851
- Genus Haplonota Frey, 1934
- Genus Haplopogon Engel in Lindner, 1930
- Genus Haroldia Londt, 1999
- Genus Harpagobroma Hull, 1962
- Genus Heilgmoneura
- Genus Helcocephala Loew, 1874 accepted as Holcocephala Jaennicke, 1867
- Genus Heligmoneura Kertész, 1909 accepted as Heligmonevra Bigot, 1858
- Genus Heligmonevra Bigot, 1858
- Genus Helolaphyctis Hermann, 1920
- Genus Hermannella Hull, 1962 accepted as Hermannomyia Oldroyd, 1980
- Genus Hermannomyia Oldroyd, 1980
- Genus Heteropogon Loew, 1847
- Genus Hexameritia Speiser, 1920
- Genus Hippomachus Engel, 1927
- Genus Hobbyus Bromley, 1952
- Genus Hodites Hull, 1962
- Genus Hodophylax James, 1933
- Genus Holcocephala Jaennicke, 1867
- Genus Holites Hull, 1962 accepted as Hodites Hull, 1962
- Genus Holocephala accepted as Holcocephala Jaennicke, 1867
- Genus Holopogon Loew, 1847
- Genus Hoplistomera Macquart, 1839 accepted as Hoplistomerus Macquart, 1839
- Genus Hoplistomerus Macquart, 1839
- Genus Hoplopheromerus Becker, 1925
- Genus Hoplotriclis Hermann, 1920
- Genus Hullia Paramonov, 1964
- Genus Hullmya Özdikmen, 2010
- Genus Humorolethalis Robinson, Li & Yeates, 2020
- Genus Hybozelodes Hermann, 1912
- Genus Hynirhynchus Lindner, 1955
- Genus Hypenetes Loew, 1857
- Genus Hyperechia Schiner, 1866
- Genus Hystrichopogon Hermann, 1905
- Genus Icariomima Enderlein, 1914
- Genus Ichneumolaphria Carrera, 1951
- Genus Illudium Rikhter, 1962
- Genus Iranopogon Timon-David, 1955
- Genus Irianjaya Koçak & Kemal, 2009
- Genus Irwinomyia Londt, 1994
- Genus Ischiolobos Londt, 2005
- Genus Isopogon Loew, 1847
- Genus Itamus Loew, 1849 accepted as Paritamus Verrall, 1909
- Genus Itolia Wilcox, 1936
- Genus Ivettea Artigas & Papavero, 1991
- Genus Joartigasia Martinez & Martinez, 1975 accepted as Pholidotus Hermann, 1912
- Genus Jothopogon Becker, 1912
- Genus Juxtasilis Londt, 2005
- Genus Katharma Oldroyd, 1960
- Genus Katharmacercus Tomasovic, 2014
- Genus Kishenehnoasilus Dikow, 2019 †
- Genus Ktyr Lehr, 1967
- Genus Ktyrimisca Lehr, 1967
- Genus Kurzenkoiellus Lehr, 1995
- Genus Labarus Londt, 2005
- Genus Labromyia Hull, 1962
- Genus Lagodias Loew, 1858
- Genus Lagynogaster Hermann, 1917
- Genus Lahria Loew, 1847 accepted as Laphria Meigen, 1803
- Genus Laloides Oldroyd, 1972 †
- Genus Lampria Macquart, 1839
- Genus Lamprozona Loew, 1851
- Genus Lamyra Loew, 1851
- Genus Laparus Loew, 1851 accepted as Neolaparus Williston, 1890
- Genus Laphina Ragues, 1908 accepted as Laphria Meigen, 1803
- Genus Laphistia Loew, 1851 accepted as Laphystia Loew, 1847
- Genus Laphria Meigen, 1803
- Genus Laphyctis Loew, 1858 accepted as Laphystia Loew, 1847
- Genus Laphygmolestes Hull, 1962
- Genus Laphystia Loew, 1847
- Genus Laphystotes Oldroyd, 1974
- Genus Lasiocnemus Loew, 1851
- Genus Lasiopogon Loew, 1847 accepted as Daulopogon Loew, 1874
- Genus Lastaurax Carrera, 1949
- Genus Lastaurina Curran, 1934
- Genus Lastauroides Carrera, 1949
- Genus Lastauronia Carrera, 1949
- Genus Lastauropsis Carrera, 1949
- Genus Lastaurus Loew, 1851
- Genus Laxenecera Macquart, 1839
- Genus Lecania Macquart, 1839
- Genus Leinendera Carrera, 1945
- Genus Leleyellus Lehr, 1995
- Genus Leptarthrus Stephens, 1829
- Genus Leptochelina Artigas, 1970 †
- Genus Leptogaster Meigen, 1803
- Genus Leptopteromyia Williston, 1907
- Genus Lestomyia Williston, 1883
- Genus Lestophonax Hull, 1962
- Genus Lissoteles Bezzi, 1910
- Genus Lithoeciscus Bezzi, 1927
- Genus Lobus Martin, 1972
- Genus Lochites Schiner, 1866
- Genus Lochitomyia Brèthes, 1924
- Genus Lochmorhynchus Engel, 1930
- Genus Lochyrus Artigas, 1970 †
- Genus Loewiella Williston, 1896
- Genus Loewinella Hermann, 1912
- Genus Lonchodogonus Hull, 1962
- Genus Longibeccus Scarbrough, 2010
- Genus Longivena Vieira & Rafael, 2014
- Genus Lonquimayus Artigas & Papavero, 1991
- Genus Lophoceraea Hermann, 1912
- Genus Lophonotus Macquart, 1839 accepted as Neolophonotus Engel, 1925
- Genus Lophopeltis Engel, 1925
- Genus Lophurodamalis Hermann, 1926
- Genus Lophybus Engel, 1925
- Genus Lowinella Hermann, 1912 accepted as Loewinella Hermann, 1912
- Genus Löwinella Hermann, 1912 accepted as Loewinella Hermann, 1912
- Genus Lycomya Bigot, 1857
- Genus Lycomyia Kertész, 1909 accepted as Lycomya Bigot, 1857
- Genus Lycoprosopa Hull, 1962
- Genus Lycosimyia Hull, 1958
- Genus Lycostommyia Oldroyd, 1980
- Genus Lycostomus Hermann, 1907 accepted as Lycostommyia Oldroyd, 1980
- Genus Lynchia Williston, 1890
- Genus Macahyba Carrera, 1947
- Genus Machimus Loew, 1849
- Genus Machiremisca Lehr, 1996 †
- Genus Macrocolus Engel, 1930
- Genus Macroetra Londt, 1994
- Genus Macronix Bigot, 1857 accepted as Dicranus Loew, 1851
- Genus Mactea Rikhter & Mamaev, 1976
- Genus Maira Schiner, 1866
- Species Maira albifacies Wulp, 1872
- Species Maira appendiculata Bezzi, 1928
- Species Maira aterrima Hermann, 1914
- Species Maira bicolor Joseph & Parui, 1987
- Species Maira binigra accepted as Maira bisnigra Bigot, 1878
- Species Maira bisnigra Bigot, 1878
- Species Maira cambodgiensis Bigot, 1878
- Species Maira compta Walker, 1861
- Species Maira delfinadoi Joseph & Parui, 1981
- Species Maira elysiaca Osten Sacken, 1881
- Species Maira gloriosa Walker, 1959
- Species Maira gracilicornis Meijere, 1913
- Species Maira hirta Meijere, 1913
- Species Maira hispidella Wulp, 1872
- Species Maira indiana Joseph & Parui, 1987
- Species Maira kollari Wulp, 1872 accepted as Maira gloriosa Walker, 1959
- Species Maira lauta Wulp, 1885
- Species Maira limbidorsum Bezzi, 1928
- Species Maira longicornis Meijere, 1913
- Species Maira longirostrata Bromley, 1935
- Species Maira nigrithorax Wulp, 1872
- Species Maira nigropilosa Meijere, 1913
- Species Maira nychthemera Wulp, 1872
- Species Maira occulta Wulp, 1872
- Species Maira paria Bigot, 1878
- Species Maira pseudoindiana Joseph & Parui, 1995
- Species Maira smaragdina Bigot, 1878
- Species Maira superba Meijere, 1913
- Species Maira tincta Meijere, 1913
- Species Maira tomentosa Wulp, 1872
- Species Maira tuberculata Wulp, 1872
- Species Maira vanderwulpi Meijere, 1913
- Species Maira varians Ricardo, 1929
- Species Maira whitneyi Curran, 1936
- Species Maira willowsi Curran, 1936
- Species Maira wollastoni Austen, 1915
- Species Maira xizangensis Shi, 1995
- Genus Mallophora Macquart, 1834
- Genus Mallophorina Curran, 1934
- Genus Margaritola Hull, 1958
- Genus Marikovskia Ler, 1964
- Genus Martinella Artigas & Papavero, 1995 accepted as Martintella Artigas, 1996
- Genus Martinia Hull, 1962
- Genus Martinofurcilla Özdikmen, 2010
- Genus Martinomyia Özdikmen, 2006
- Genus Martintella Artigas, 1996
- Genus Mauropteron Daniels, 1987
- Genus Mecynopus Engel, 1925
- Genus Megadrillus Bigot, 1857
- Genus Megalometopon Artigas & Papavero, 1995 †
- Genus Megametopon Artigas, 1970 † accepted as Megalometopon Artigas & Papavero, 1995 †
- Genus Megaphorus Bigot, 1857
- Genus Megapoda Macquart, 1834
- Genus Megonyx Hull, 1962
- Genus Megopoda
- Genus Meliponomima Artigas & Papavero, 1989
- Genus Melouromyia Londt, 2002
- Genus Menexenus Artigas, 1970
- Genus Mercuriana Lehr, 1988
- Genus Merodontina Enderlein, 1914
- Genus Merogymnus Hobby, 1933
- Genus Mesoleptogaster Frey, 1937
- Genus Metadioctria Wilcox & Martin, 1941
- Genus Metalaphria Ricardo, 1912
- Genus Metapogon Coquillett, 1904
- Genus Michotamia Macquart, 1839
- Genus Microlaphria
- Genus Microphontes Londt, 1994
- Genus Microstylum Macquart, 1839
- Genus Millenarius Londt, 2005
- Genus Mimoscolia Enderlein, 1914
- Genus Minicatus Lehr, 1992
- Genus Mioatomosites Camargo & Pereira Gomes, 2024 †
- Genus Mirolestes Curran, 1935
- Genus Mochterus Bigot, 1857 accepted as Neomochtherus Osten-Sacken, 1878
- Genus Mochtherus Loew, 1849 accepted as Neomochtherus Osten-Sacken, 1878
- Genus Molobratia Hull, 1958
- Genus Morimna Walker, 1850
- Genus Myaptex Hull, 1962
- Genus Myaptexaria Artigas & Papavero, 1995
- Genus Myelaphus Bigot, 1882
- Genus Myielaphus Kertész, 1909 accepted as Myelaphus Bigot, 1882
- Genus Myiolestes Kertész, 1909 accepted as Mirolestes Curran, 1935
- Genus Myiothera Williston, 1890 accepted as Cylindrophora Philippi, 1865
- Genus Myolestes Brèthes, 1905 accepted as Mirolestes Curran, 1935
- Genus Nannocyrtopogon Wilcox & Martin, 1936
- Genus Nannodioctria Wilcox & Martin, 1942
- Genus Nannolaphria Londt, 1977
- Genus Nanoculcita Londt & Copeland, 2017
- Genus Neatonia Bromley, 1935 accepted as Atoniomyia Hermann, 1912
- Genus Negasilus Curran, 1934
- Genus Neoaratus Ricardo, 1913
- Genus Neocerdistus Hardy, 1926
- Genus Neocyrtopogon Ricardo, 1912
- Genus Neodasophrys Ricardo, 1920
- Genus Neoderomyia Artigas, 1971 †
- Genus Neodioctria Ricardo, 1918
- Genus Neodioctria Wilcox & Martin, 1941 accepted as Nannodioctria Wilcox & Martin, 1942
- Genus Neodiogmites Carrera, 1949
- Genus Neodysmachus Ricardo, 1925
- Genus Neoepitriptus Lehr, 1992
- Genus Neoeristicus Osten-Sacken, 1878
- Genus Neoholopogon Joseph & Parui, 1989
- Genus Neoitamus Osten-Sacken, 1878
- Genus Neolaparus Williston, 1890
- Genus Neolophonotus Engel, 1925
- Genus Neomochtherus Osten-Sacken, 1878
- Genus Neophoneus Williston, 1890
- Genus Neopogon Bezzi, 1910
- Genus Neopsilocurus Astakhov, 2018
- Genus Neosaropogon Ricardo, 1912
- Genus Neoscleropogon Malloch, 1928
- Genus Neotes Artigas & Papavero, 1995
- Genus Nerax Hull, 1962
- Genus Nerterhaptomenus Hardy, 1934
- Genus Nesiotes Artigas, 1970
- Genus Nevadasilus Artigas & Papavero, 1995
- Genus Nicocles Jaennicke, 1867
- Genus Nigrasilus Hine, 1908
- Genus Nomomyia Artigas, 1970 †
- Genus Norissia
- Genus Nothopogon Artigas & Papavero, 1991
- Genus Notiolaphria Londt, 1977
- Genus Notomochtherus Londt, 2002
- Genus Nusa Walker, 1851
- Genus Nusina Curran, 1927
- Genus Nyssomyia Hull, 1962
- Genus Nyssoprosopa Hull, 1962
- Genus Nyximyia Hull, 1962
- Genus Obelophorus Schiner, 1866
- Genus Oberon Carrera & Papavero, 1962
- Genus Odus Lehr, 1986
- Genus Oidardis Hermann, 1912
- Genus Oldroydella Özdikmen, 2006
- Genus Oldroydia Hull, 1956
- Genus Oldroydiana Lehr, 1996 †
- Genus Oligopogon Loew, 1847
- Genus Oligoschema Becker, 1925
- Genus Ommatinus Becker, 1925
- Genus Ommatius Wiedemann, 1821
- Genus Ommatomyia Scarbrough & Tomasovic, 2010
- Genus Ommatus Say, 1823 accepted as Ommatius Wiedemann, 1821
- Genus Omniablautus
- Genus Omninablautus Pritchard, 1935
- Genus Ontomyia Dikow & Londt, 2000
- Genus Opeatocerus Hermann, 1912
- Genus Opegiocera Rondani, 1846 accepted as Ancylorhynchus Berthold in Latreille, 1827
- Genus Ophionomima Enderlein, 1914
- Genus Opocapsis Hull, 1958
- Genus Opopotes Hull, 1958
- Genus Opseostlengis White, 1914
- Genus Oratostylum Ricardo, 1925
- Genus Orophotus Becker, 1925
- Genus Orrhodops Hull, 1958
- Genus Orthogonis Herman, 1914
- Genus Orthoneuromyia Williston, 1893
- Genus Ospriocerus Loew, 1866
- Genus Othoniomyia Hermann, 1912
- Genus Oxynoton Janssens, 1951
- Genus Pachychaeta Verrall in Scudder, 1882 accepted as Pachychoeta Bigot, 1857
- Genus Pachychoeta Bigot, 1857 accepted as Lecania Macquart, 1839
- Genus Pacificocesa Koçak & Kemal, 2008 accepted as Brachyrhopala Macquart, 1847
- Genus Palaeomolobra Hull, 1962 †
- Genus Palamopogon Bezzi, 1927
- Genus Pamponerus Loew, 1849
- Genus Panamasilus Curran, 1930
- Genus Papaverellus Artigas & Vieira, 2014
- Genus Paractenota Engel, 1925
- Genus Paraloewinella Schumann, 1984
- Genus Paramochtherus Theodor, 1980
- Genus Paraphamartania Engel in Lindner, 1930
- Genus Parapogina
- Genus Parastenopogon Paramonov, 1964
- Genus Parastichopogon Theodor, 1980
- Genus Parataracticus Cole, 1924
- Genus Paraterpogon
- Genus Paratractia Hull, 1962
- Genus Paritamus Verrall, 1909
- Genus Paroxynoton Janssens, 1953
- Genus Pashtshenkoa Lehr, 1995
- Genus Pedomyia Londt, 1994
- Genus Pegesimallus Loew, 1857
- Genus Pegolabrus Hull, 1962
- Genus Perasis Hermann, 1905
- Genus Phellopteron Hull, 1962
- Genus Phellus Walker, 1851
- Genus Philammosius Rondani, 1856 accepted as Cyrtopogon Loew, 1847
- Genus Philamosius
- Genus Phileris Tsacas & Weinberg, 1976
- Genus Philodicus Loew, 1848
- Genus Philomachus Karsch, 1888
- Genus Philonerax Bromley, 1932
- Genus Philonicus Loew, 1849
- Genus Pholidotus Hermann, 1912
- Genus Phoneus Macquart, 1838 accepted as Neophoneus Williston, 1890
- Genus Phonicocleptes Lynch Arribálzaga, 1881
- Genus Pilica Curran, 1931
- Genus Pilophoneus Londt, 1988
- Genus Plesiomma Macquart, 1838
- Genus Podoctria Meigen, 1820
- Genus Pogonioefferia Artigas & Papavero, 1997
- Genus Pogonosoma Rondani, 1856
- Genus Polacantha Martin, 1975
- Genus Polyagra Gistl, 1848 accepted as Lampria Macquart, 1839
- Genus Polyphonius Loew, 1848
- Genus Polysarca Schiner, 1866
- Genus Polysarcodes Paramonov, 1937
- Genus Porasilus Curran, 1934
- Genus Premochtherus Lehr, 1996
- Genus Pritchardia Stuardo Ortiz, 1946
- Genus Pritchardomyia Wilcox, 1965
- Genus Proagonistes Loew, 1857
- Genus Proctacanthella Bromley, 1934
- Genus Proctacanthus Macquart, 1838
- Genus Proctophoroides Artigas & Papavero, 1995
- Genus Prolatiforceps Martin, 1975
- Genus Prolepsis Walker, 1851
- Genus Promachella Cole & Pritchard, 1964
- Genus Promachina Bromley, 1934
- Genus Promachus Loew, 1848
- Genus Pronomopsis Hermann, 1912
- Genus Protichisma Hermann, 1912
- Genus Protodamalis Hull, 1962
- Genus Protometer Artigas, Papavero & da Costa, 1997
- Genus Protophanes Loew, 1860
- Genus Prytania Oldroyd, 1974 accepted as Prytanomyia Özdikmen, 2006
- Genus Prytanomyia Özdikmen, 2006
- Genus Pseudarchilestes Bigot, 1890 accepted as Archilestris Loew, 1874
- Genus Pseuderemisca Lehr, 1986
- Genus Pseudoarchilestes Bigot, 1890 accepted as Pseudarchilestes Bigot, 1890
- Genus Pseudomerodontina Joseph & Parui, 1976
- Genus Pseudonusa Joseph & Parui, 1989
- Genus Pseudophrisson Durrenfeldt, 1968
- Genus Pseudorus Walker, 1851
- Genus Pseudoryclus Carrera, 1952
- Genus Psilinus van der Wulp, 1899
- Genus Psilocurus Loew, 1874
- Genus Psilonyx Aldrich, 1923
- Genus Psilozona Ricardo, 1912
- Genus Pycnomerinx Hull, 1962
- Genus Pycnopogon Loew, 1847
- Genus Pygommatius Scarbrough & Marascia, 2003
- Genus Pygostolus Loew, 1866 accepted as Nicocles Jaennicke, 1867
- Genus Questopogon Dakin & Fordham, 1922
- Genus Rachiopogon Ricardo, 1912
- Genus Raulcortesia Artigas & Papavero, 1991
- Genus Reburrus Daniels, 1987
- Genus Regasilus Curran, 1931
- Genus Reminasus Lehr, 1979
- Genus Remotomyia Londt, 1983
- Genus Rhabdogaster Loew, 1857
- Genus Rhabdotoitamus White, 1918
- Genus Rhacholaemus Hermann, 1907
- Genus Rhadinosoma Artigas, 1970
- Genus Rhadinus Loew, 1856
- Genus Rhadiurgus Loew, 1849
- Genus Rhatimomyia
- Genus Rhayatus Özdikmen, 2006
- Genus Rhipidocephala Hermann, 1926
- Genus Rhopalogaster Macquart, 1834
- Genus Robertomyia Londt, 1990
- Genus Ruzanna Richter, 1979
- Genus Saliomima Enderlein, 1914
- Genus Sarapogon Williston, 1891 accepted as Saropogon Loew, 1847
- Genus Saropogina
- Genus Saropogon Loew, 1847
- Genus Sarpoginella
- Genus Satanas Jacobson, 1901
- Genus Saucropogon Hull, 1962
- Genus Scandon Walker, 1851
- Genus Scarbroughia Papavero, 2009
- Genus Schildia Aldrich, 1923
- Genus Scleropogon Loew, 1866
- Genus Scylaticina Artigas & Papavero, 1991
- Genus Scylaticodes Artigas & Papavero, 1991
- Genus Scylaticus Loew, 1857
- Genus Scytomedes Stein, 1881
- Genus Seabramyia Carrera, 1962
- Genus Seilopogon Rondani, 1861 accepted as Cheilopogon Rondani, 1856
- Genus Seilopogon Costa, 1854 accepted as Dasypogon Meigen, 1803
- Genus Selidacantha Bezzi, 1902
- Genus Selidopogon Bezzi, 1902 accepted as Dasypogon Meigen, 1803
- Genus Senobasis Macquart, 1839
- Genus Senoprosopis Macquatt, 1839
- Genus Senoprosopus Walker, 1855 accepted as Senoprosopis Macquatt, 1839
- Genus Senoxenricera
- Genus Senoxericera Macquart, 1850
- Genus Setopyga
- Genus Shannomyioleptus Carrera, 1944
- Genus Sinopsilonyx Hsia, 1949
- Genus Sintoria Hull, 1962
- Genus Sisyrnodytes Loew, 1856
- Genus Smeringolaphria Curran, 1942 accepted as Smeryngolaphria Hermann, 1912
- Genus Smeryngolaphria Hermann, 1912
- Genus Spanurus Loew, 1857
- Genus Sphageus Loew, 1866
- Genus Sphagomyia Londt, 2002
- Genus Sporadothrix Hermann, 1907
- Genus Stackelberginia Ler, 1964
- Genus Stenasilus Carrera, 1962
- Genus Stenobasis Agassiz, 1846 accepted as Senobasis Macquart, 1839
- Genus Stenocinclis Scudder, 1878 †
- Genus Stenommatius Matsumura, 1916
- Genus Stenopogon Loew, 1847
- Genus Stenoprosopis Agassiz, 1846 accepted as Senoprosopis Macquatt, 1839
- Genus Stenoprosopus
- Genus Stichopogon Loew, 1847
- Genus Stictopogon Wilcox, 1937 accepted as Stichopogon Loew, 1847
- Genus Stilopogon Costa, 1884 accepted as Stichopogon Loew, 1847
- Genus Stilpnogaster Loew, 1849
- Genus Stiphrolamyra Engel in Lindner, 1928
- Genus Stizochymus Hull, 1962
- Genus Stizolestes Hull, 1962
- Genus Storthyngomerus Hermann, 1919
- Genus Strobilopygius Hull, 1956
- Genus Strombocodia Hermann, 1912
- Genus Strophipogon Hull, 1958
- Genus Synolcus Loew, 1857
- Genus Systologaster Papavero, 2009
- Genus Systropalpus Hull, 1962
- Genus Tanap Hasbenli̇ & Çağlar, 2020
- Genus Tanatchivia Hradsky, 1983
- Genus Taperigna Artigas & Papavero, 1991
- Genus Tapinostylus Enderlein, 1914
- Genus Taracticus Loew, 1872
- Genus Taurhynchus Artigas & Papavero, 1995
- Genus Telejoneura Rondani, 1863 accepted as Promachus Loew, 1848
- Genus Templasilus Peris, 1957
- Genus Teretromyia Bigot, 1859 accepted as Promachus Loew, 1848
- Genus Thallosia Oldroyd, 1970
- Genus Theodoria Hradsky & Huttinger, 1984
- Genus Theodoria Lehr, 1986
- Genus Theodoriana Lehr, 1987
- Genus Thereutria Loew, 1851
- Genus Theromyia Williston, 1891
- Genus Theurgus Rikhter, 1966
- Genus Threnia Schiner, 1866
- Genus Thrennia Schiner, 1868 accepted as Threnia Schiner, 1866
- Genus Tipulogaster Cockerell, 1913
- Genus Tocantinia Carrera, 1955
- Genus Tolmerolestes Lynch Arribálzaga, 1881
- Genus Tolmerus Loew, 1849
- Genus Torasilus Londt, 2005
- Genus Torebroma Hull, 1958
- Genus Toremyia Hull, 1958
- Genus Townsendia Williston, 1895
- Genus Tricella Daniels, 1975
- Genus Trichardis Hermann, 1906
- Genus Trichardopsis Oldroyd, 1958
- Genus Trichoitamus White, 1917
- Genus Trichomachimus Engel, 1934
- Genus Trichonotus Loew, 1857 accepted as Hippomachus Engel, 1927
- Genus Trichoura Londt, 1994
- Genus Triclioscelis Röder, 1900
- Genus Triclis Loew, 1851
- Genus Trigonomima Enderlein, 1914
- Genus Triorla Parks, 1968
- Genus Trypanoides Becker, 1925
- Genus Trypanoïdes Becker, 1925 accepted as Trypanoides Becker, 1925
- Genus Tsacasia Artigas & Papavero, 1995
- Genus Tsacasiella Lehr, 1996 †
- Genus Tuberconspicus Tomasovic, 2013
- Genus Tuberculefferia Artigas & Papavero, 1997
- Genus Turka Özdikmen, 2008
- Genus Turkiella Lehr, 1996
- Genus Turkmenomyia Paramonov, 1930
- Genus Udenopogon Becker, 1912
- Genus Ujguricola Lehr, 1970
- Genus Valiraptor Londt, 2002
- Genus Vespina Clements, 2000
- Genus Wilcoxia James, 1941
- Genus Wilcoxius Martin, 1975
- Genus Willistonina Back in Williston, 1908
- Genus Wygodasilus Artigas & Papavero, 1995
- Genus Wyliea Martin, 1975
- Genus Xenomyza Wiedemann, 1817 accepted as Damalis Fabricius, 1805
- Genus Xiphocera Macquart, 1834 accepted as Ancylorhynchus Berthold in Latreille, 1827
- Genus Xiphocerus Loew, 1847
- Genus Xyphocera Bigot, 1857 accepted as Ancylorhynchus Berthold in Latreille, 1827
- Genus Xyphocerus accepted as Ancylorhynchus Berthold in Latreille, 1827
- Genus Yksdarhus Hradsky & Huttinger, 1983
- Genus Ysopogon Bigot, 1857
- Genus Zabrops Hull, 1958
- Genus Zabrotica Hull, 1958
- Genus Zelamyia Londt, 2005
- Genus Zosteria Daniels, 1987
- Genus Zoticus Artigas, 1970
- Genus Zygocolon Hull, 1962
- Family Asiloidea incertae sedis
- Family Asiochaoboridae Hong & Wang, 1990 †
- Family Asteiidae Rondani, 1856
- Family Atelestidae Hennig, 1970
- Family Athericidae Nowicki, 1873
- Family Aulacigastridae Duda, 1924
- Family Australimyzidae Griffiths, 1972
- Family Austroleptidae Nagatomi, 1982
- Family Axymyiidae Shannon, 1921
- Family Bengaliidae Brauer & Bergenstamm, 1889
- Family Bibionidae Fleming, 1821
- Family Blephariceridae Loew, 1862
- Family Blepharoceridae accepted as Blephariceridae Loew, 1862
- Family Boholdoyidae Kovalev, 1985 †
- Family Bolithophilidae accepted as Bolitophilidae Winnertz, 1863
- Family Bolitophilidae Winnertz, 1863
- Family Bombylidae accepted as Bombyliidae Latreille, 1802
- Family Bombyliidae Latreille, 1802
- Family Borboridae Newman, 1834 accepted as Sphaeroceridae Macquart, 1835
- Family Brachystomatidae Melander, 1908
- Family Braulidae Egger, 1853
- Family Calliphoridae Brauer & Bergenstamm, 1889
- Family Camillidae Frey, 1921
- Family Campichoetidae Griffiths, 1972
- Family Canaceidae accepted as Canacidae Jones, 1906
- Family Canacidae Jones, 1906
- Family Canthyloscelidae Shannon, 1927
- Family Carnidae Newman, 1834
- Family Cascopleciidae Poinar, 2010 †
- Family Cecidomyiidae Newman, 1835
- Family Celyphidae Bigot, 1852
- Family Ceratopogonidae Newman, 1834
- Family Chamaemyiidae Hendel, 1910
- Family Chaoboridae Edwards, 1932
- Family Chimeromyiidae Grimaldi & Cumming, 2009 †
- Family Chironomidae Macquart, 1838
- Family Chironomoidea incertae sedis
- Family Chloropidae Rondani, 1856
- Family Christelenkidae Roháček, 2023 †
- Family Chyromyidae Hendel, 1916
- Family Circumphallidae Papp, 2011
- Family Clusiidae Hendel, 1916
- Family Clusiomitidae Roháček & Hoffeins, 2021 †
- Family Coelopidae Hendel, 1910
- Family Coenomyiidae
- Family Conopidae Latreille, 1802
- Family Cordyluridae
- Family Corethrellidae Edwards, 1932
- Family Cratomyiidae Mazzarolo & Amorim, 2000 † accepted as Zhangsolvidae Nagatomi & Yang, 1998 †
- Family Crosaphididae Kovalev, 1983 †
- Family Cryptochaetidae accepted as Cryptochetidae Brues & Melander, 1932
- Family Cryptochetidae Brues & Melander, 1932
- Family Ctenostylidae Bigot, 1882
- Family Culicidae Meigen, 1818
- Family Curtonotidae Enderlein, 1914
- Family Cuterebridae Brauer, 1887
- Family Cylindrotomidae Schiner, 1863
- Family Cypselosomatidae Hendel, 1931
- Family Deuterophlebiidae Edwards, 1922
- Family Dexiidae Sharp, 1887
- Family Deximorpha Brauer & Bergenstamm, 1889 accepted as Tachinidae Bigot, 1853
- Family Diadocidiidae Winnertz, 1863
- Family Diastatidae Hendel, 1917
- Family Dictyodipteridae Rohdendorf, 1961 †
- Family Diopsidae Billberg, 1820
- Family Diplopolyneuridae Rohdendorf, 1962 † accepted as Pediciidae Osten Sacken, 1860
- Family Diptera (awaiting allocation)
- Family Ditomyiidae Kylin, 1919
- Family Dixamimidae † accepted as Chaoboridae Edwards, 1932
- Family Dixidae Schiffner, 1868
- Family Dolichopodidae Latreille, 1809
- Family Drosophilidae Rondani, 1856
- Family Dryomyzidae Schiner, 1864
- Family Dyspolyneuridae Rohdendorf, 1961 †
- Family Elliidae Krzeminska, Blagoderov & Krezmiñski, 1993 †
- Family Empididae Latreille, 1804
- Family Eoditomyiidae Ansorge, 1996 †
- Family Eolimnobiidae Rohdendorf, 1962 †
- Family Eomyiidae Rohdendorf, 1962 †
- Family Eophlebomyiidae Cockerell, 1925 †
- Family Eopleciidae Rohdendorf, 1946 †
- Family Eopolyneuridae Rohdendorf, 1962 †
- Family Eoptychopteridae Handlirsch, 1906 † accepted as Ptychopteridae Osten Sacken, 1862
- Family Eostratiomyiidae Rohdendorf, 1962 †
- Family Ephydridae Zetterstedt, 1837
- Family Eremochaetidae Ussatchov, 1968 †
- Family Eremoneura (awaiting allocation)
- Family Eucaudomyiidae Grimaldi, 2016 †
- Family Eurychoromyiidae endel, 1910 accepted as Lauxaniidae Macquart, 1835
- Family Evocoidae Yeates, Irwin & Wiegmann, 2006
- Family Fanniidae Schnabl & Dziedzicki, 1911
- Family Fergusoninidae Hennig, 1958
- Family Fungivoritidae Rohdendorf, 1946 †
- Family Galliidae Lukashevich & Mostovski, 2023 †
- Family Gasterophilidae Girschner, 1896
- Family Geomyzidae Fallén, 1823 accepted as Opomyzidae Fallén, 1820
- Family Glossinidae Theobald, 1903
- Family Gobryidae McAlpine, 1997
- Family Gracilitipulidae Hong & Wang, 1990 † accepted as Pediciidae Osten Sacken, 1860
- Family Grauvogeliidae Krzemiński, Krzemińska & Papier, 1994 †
- Family Helcomyzidae Hendel, 1924
- Family Heleomyzidae Westwood, 1840
- Family Helomyzidae accepted as Heleomyzidae Westwood, 1840
- Family Helosciomyzidae Steyskal, 1965
- Family Hennigmatidae Shcherbakov, 1995 †
- Family Hesperinidae Walker, 1848
- Family Heterocheilidae McAlpine, 1991
- Family Heteropezidae Schiner, 1868
- Family Hilarimorphidae Williston, 1896
- Family Hippoboscidae Samouelle, 1819
- Family Hippoboscoidea incertae sedis †
- Family Hoffeinsmyiidae Michelsen, 2009 †
- Family Homalocnemiidae Collin, 1928
- Family Huttoninidae Steyskal, 1965
- Family Hybotidae Meigen, 1820
- Family Hyperoscelididae Hardy & Nagatomi, 1960
- Family Hyperpolyneuridae Rohdendorf, 1961 †
- Family Hypodermatidae Rondani, 1856
- Family Inbiomyiidae Buck, 2006
- Family Ironomyiidae McAlpine & Martin, 1966
- Family Iteaphilidae Wahlberg & Johanson, 2018
- Family Kaluginamyiidae Lukashevich, Pepinelli & Currie, 2020 †
- Family Keroplatidae Rondani, 1856
- Family Kovalevisargidae Mostovski, 1997 †
- Family Lauxaniidae Macquart, 1835
- Family Leptidae Burmeister, 1837 accepted as Rhagionidae Latreille, 1802
- Family Lestremiidae accepted as Cecidomyiidae Newman, 1835
- Family Limnorhyphidae Hong, 1983 † accepted as Perissommatidae Colless, 1962
- Family Limoniidae Speiser, 1909
- Family Lonchaeidae Loew, 1861
- Family Lonchopteridae Macquart, 1835
- Family Luanpingitidae Zhang, 1986 †
- Family Lygistorrhinidae Edwards, 1925
- Family Macroceridae Rondani, 1856
- Family Marginidae McAlpine, 1991
- Family Megamerinidae Hendel, 1913
- Family Mesophantasmatidae Rohdendorf, 1962 †
- Family Mesosciophilidae Rohdendorf, 1946 †
- Family Mesothaumaleidae † accepted as Thaumaleidae Bezzi, 1913
- Family Micropezidae Blanchard, 1840
- Family Microphoridae Collin, 1960 accepted as Dolichopodidae Latreille, 1809
- Family Milichiidae Schiner, 1862
- Family Mormotomyiidae Austen, 1936
- Family Muscidae Latreille, 1802
- Family Musidoromimidae Rohdendorf, 1962 †
- Family Mycetobiidae accepted as Anisopodidae Knab, 1912
- Family Mycetophilidae Newman, 1834
- Family Mydaidae accepted as Mydidae Latreille, 1809
- Family Mydidae Latreille, 1809
- Family Mystacinobiidae Holloway, 1976
- Family Mysteromyiidae Grimaldi, 2016 †
- Family Mythicomyiidae Melander, 1902
- Family Nadipteridae Lukashevich, 1995 †
- Family Nannodastiidae Papp, 1980
- Family Natalimyzidae Barraclough & McAlpine, 2006
- Family Nemestrinidae Griffith & Pidgeon, 1832
- Family Neminidae McAlpine, 1983
- Family Neriidae Westwood, 1840
- Family Neurochaetidae McAlpine, 1978
- Family Nothybidae Frey, 1927
- Family Nycteribiidae Samouelle, 1819
- Family Nymphomyiidae Tokunaga, 1932
- Family Ocoidae accepted as Evocoidae Yeates, Irwin & Wiegmann, 2006
- Family Odiniidae Hendel, 1920
- Family Oestridae Leach, 1815
- Family Oligophryneidae Rohdendorf, 1962 † accepted as Anisopodidae Knab, 1912
- Family Oligophrynidae Rohdendorf, 1962 † accepted as Anisopodidae Knab, 1912
- Family Opetiidae Rondani, 1856
- Family Opomyzidae Fallén, 1820
- Family Oreoleptidae Zloty, Sinclair & Pritchard, 2005
- Family Orientisargidae Zhang, 2012 †
- Family Ortalidae Fallén, 1810 accepted as Ulidiidae Macquart, 1835
- Family Otitidae Aldrich, 1932 accepted as Ulidiidae Macquart, 1835
- Family Pachyneuridae Schiner, 1864
- Family Palaeolimnobiidae Zhang, Zhang, Liu & Shangguan, 1986 † accepted as Pediciidae Osten Sacken, 1860
- Family Palaeophoridae Rohdendorf, 1951 †
- Family Palaeopleciidae Rohdendorf, 1962 †
- Family Palaeostratiomyiidae Rohdendorf, 1938 † accepted as Rhagionidae Latreille, 1802
- Family Pallopteridae Loew, 1862
- Family Panthophthalmidae accepted as Pantophthalmidae Bigot, 1882
- Family Pantophthalmidae Bigot, 1882
- Family Parapleciidae Hong, 1983 † accepted as Paraxymyiidae Rohdendorf, 1946 †
- Family Paratendipedidae Hong & Wang, 1990 † accepted as Serendipidae Evenhuis, 1994 †
- Family Paraxymyiidae Rohdendorf, 1946 †
- Family Pediciidae Osten Sacken, 1860
- Family Pelecorhynchidae Enderlein, 1922
- Family Periscelidae accepted as Periscelididae Oldenberg, 1914
- Family Periscelididae Oldenberg, 1914
- Family Perissomatidae Colless, 1962 accepted as Perissommatidae Colless, 1962
- Family Perissommatidae Colless, 1962
- Family Phaeomyiidae Verbeke, 1950
- Family Phasiidae Robineau-Desvoidy, 1830 accepted as Tabanidae Latreille, 1802
- Family Phlebotomidae accepted as Psychodidae Newman, 1834
- Family Phoridae Curtis, 1833
- Family Phragmoligoneuridae Rohdendorf, 1962 † accepted as Protopleciidae Rohdendorf, 1946 †
- Family Piophilidae Macquart, 1835
- Family Pipunculidae Walker, 1834
- Family Platypezidae Fallén, 1815
- Family Platystomatidae Schiner, 1862
- Family Pleciidae Duda, 1930 accepted as Bibionidae Fleming, 1821
- Family Pleciodictyidae Rohdendorf, 1962 † accepted as Protopleciidae Rohdendorf, 1946 †
- Family Pleciofungivoridae Rohdendorf, 1946 †
- Family Pleciomimidae Rohdendorf, 1946 † accepted as Antefungivoridae Rohdendorf, 1938 †
- Family Polleniidae Brauer & Bergenstamm, 1889
- Family Procramptonomyiidae Kovalev, 1985 †
- Family Proneottiophilidae Hennig, 1969 †
- Family Protapioceridae Ren, 1998 †
- Family Protempididae Ussatchov, 1968 †
- Family Protendipedidae Rohdendorf, 1962 †
- Family Protobibionidae Rohdendorf, 1946 †
- Family Protobrachyceridae Rohdendorf, 1962 †
- Family Protobrachycerontidae † accepted as Protobrachyceridae Rohdendorf, 1962 †
- Family Protoligoneuridae Rohdendorf, 1962 † accepted as Protopleciidae Rohdendorf, 1946 †
- Family Protomphralidae Rohdendorf, 1962 †
- Family Protopleciidae Rohdendorf, 1946 †
- Family Protorhyphidae Handlirsch, 1906 †
- Family Protoscatopsidae Rohdendorf, 1946 †
- Family Pseudopomyzidae McAlpine, 1966
- Family Psilidae Macquart, 1835
- Family Psychodidae Newman, 1834
- Family Psychodoidea incertae sedis
- Family Ptychopteridae Osten Sacken, 1862
- Family Pyrgotidae Schiner, 1868
- Family Rangomaramidae Jaschhof & Didham, 2002
- Family Rhaetomyiidae Rohdendorf, 1962 †
- Family Rhagionemestriidae Ussatchov, 1968 †
- Family Rhagionempididae Rohdendorf, 1951 †
- Family Rhagionidae Latreille, 1802
- Family Rhiniidae Brauer & Bergenstamm, 1889
- Family Rhinophoridae Robineau-Desvoidy, 1863
- Family Rhinotoridae Williston, 1896 accepted as Heleomyzidae Westwood, 1840
- Family Rhopalomeridae accepted as Ropalomeridae Schiner, 1868
- Family Rhyphidae Newman, 1834 accepted as Anisopodidae Knab, 1912
- Family Richardidae accepted as Richardiidae Loew, 1868
- Family Richardiidae Loew, 1868
- Family Ropalomeridae Schiner, 1868
- Family Sapromyzidae accepted as Lauxaniidae Macquart, 1835
- Family Sarcophagidae Macquart, 1834
- Family Scathophagidae Cresson, 1918
- Family Scatophagidae Robineau-Desvoidy, 1830 accepted as Scathophagidae Cresson, 1918
- Family Scatopsidae Newman, 1834
- Family Scenopinidae Fallén, 1817
- Family Sciadoceridae Schmitz, 1929
- Family Sciaridae Billberg, 1820
- Family Sciaroidea incertae sedis
- Family Sciomyzidae Fallén, 1820
- Family Sepsidae Walker, 1833
- Family Serendipidae Evenhuis, 1994 †
- Family Siberhyphidae †
- Family Simuliidae Newman, 1834
- Family Sinotendipedidae † accepted as Anisopodidae Knab, 1912
- Family Somatiidae Hendel, 1935
- Family Spaniidae Rondani, 1856 accepted as Rhagionidae Latreille, 1802
- Family Sphaeoroceridae accepted as Sphaeroceridae Macquart, 1835
- Family Sphaeroceridae Macquart, 1835
- Family Stenomicridae Papp, 1984 accepted as Periscelididae Oldenberg, 1914
- Family Stratiomyidae Latreille, 1802
- Family Streblidae Kolenati, 1863
- Family Stronglyophthalmyiidae accepted as Strongylophthalmyiidae Hendel, 1917
- Family Strongylophthalmyiidae Hendel, 1917
- Family Synneuridae Enderlein, 1936 accepted as Canthyloscelidae Shannon, 1927
- Family Syringogastridae Prado, 1969
- Family Syrphidae Latreille, 1802
- Family Tabanidae Latreille, 1802
- Family Tachinidae Bigot, 1853
- Family Tachiniscidae Kertész, 1903
- Family Tanyderidae Osten Sacken, 1880
- Family Tanyderophryneidae Rohdendorf, 1962 † accepted as Chaoboridae Edwards, 1932
- Family Tanypezidae Rondani, 1856
- Family Tephritidae Newman, 1834
- Family Teratomyzidae Colless & McAlpine, 1970
- Family Tethepomyiidae Grimaldi & Arillo, 2008 †
- Family Tethinidae accepted as Canacidae Jones, 1906
- Family Thaumaleidae Bezzi, 1913
- Family Therevidae Newman, 1834
- Family Tillyardipteridae Lukashevich & Shcherbakov, 1999 †
- Family Tipulidae Leach, 1815
- Family Tipulodictyidae Rohdendorf, 1962 †
- Family Tipulopleciidae Rohdendorf, 1962 †
- Family Trichoceridae Rondani, 1841
- Family Trixoscelidae Hendel, 1916 accepted as Heleomyzidae Westwood, 1840
- Family Trypetidae Loew, 1861 accepted as Tephritidae Newman, 1834
- Family Ulidiidae Macquart, 1835
- Family Ulurumyiidae Michelsen & Pape, 2017
- Family Uranorhagionidae Zhang, Yang & Ren, 2010 †
- Family Valeseguyidae Amorim & Grimaldi, 2006
- Family Vermileonidae Williston, 1886
- Family Vladipteridae Shcherbakov, 1995 †
- Family Vosilidae Vršanský & Ren in Vršanský, Ren & Shih, 2010 †
- Family Xenasteiidae Hardy, 1980
- Family Xylomidae accepted as Xylomyidae Verrall, 1901
- Family Xylomyidae Verrall, 1901
- Family Xylophagidae Fallén, 1810
- Family Yantaromyiidae Barták, 2020 †
- Family Zhangobiidae Evenhuis, 1994 † accepted as Pediciidae Osten Sacken, 1860
- Family Zhangsolvidae Nagatomi & Yang, 1998 †
- Genus Apystomimus Mostovski, 1999 †
- Genus Aschizomyia Grimaldi, 2018 †
- Order Embiodea
- Order Endopterygota incertae sedis
- Order Eoblattida †
- Order Ephemeroptera
- Order Eugeroptera †
- Order Geraroptera †
- Order Geroptera †
- Order Glosselytrodea †
- Order Grylloblattodea
- Order Hemiptera
- Order Homoptera accepted as Hemiptera
- Order Hymenoptera
- Order Hypoperlida †
- Order Insecta (awaiting allocation)
- Order Insecta incertae sedis
- Order Isoptera accepted as Blattodea
- Order Kukaloptera †
- Order Lepidoptera
- Order Lophioneurida †
- Order Mallophaga
- Order Mantodea
- Order Mantophasmatodea
- Order Mecoptera
- Order Mecopterida incertae sedis
- Order Megaloptera
- Order Megasecoptera †
- Order Miomoptera †
- Order Neoptera incertae sedis
- Order Neuroptera
- Order Neuropteroidea incertae sedis †
- Order Notoptera
- Order Odonata
- Order Odonatoptera (awaiting allocation) †
- Order Odonatoptera incertae sedis
- Order Orthoptera
- Order Orthopterida incertae sedis
- Order Palaeodictyoptera †
- Order Palaeoptera incertae sedis
- Order Panorthoptera incertae sedis
- Order Paoliida †
- Order Paraneoptera (awaiting allocation)
- Order Perielytrodea †
- Order Permopsocida †
- Order Permotrichoptera †
- Order Phasmatodea
- Order Phasmida accepted as Phasmatodea
- Order Phasmoptera accepted as Phasmatodea
- Order Phthiraptera
- Order Plecoptera
- Order Polyneoptera incertae sedis
- Order Protelytroptera †
- Order Protoblattoidea †
- Order Protocoleoptera † accepted as Protelytroptera †
- Order Protodonata †
- Order Protoelytroptera †
- Order Protohemiptera †
- Order Protohymenoptera †
- Order Protorthoptera †
- Order Protozygoptera †
- Order Psocoptera
- Order Raphidioptera
- Order Siphonaptera
- Order Skleroptera †
- Order Strepsiptera
- Order Tarachoptera †
- Order Thripida incertae sedis
- Order Thysanoptera
- Order Thysanura accepted as Insecta
- Order Titanoptera †
- Order Trichoptera
- Order Zoraptera
- Order Zygentoma
- Genus Bifarius Tasch, 1961 †
- Genus Cyclocephalus Tasch, 1961 †
- Genus Hypatocephala Tasch, 1961 †
- Genus Permolimulinella Tasch, 1963 †
- Genus Strongylocephalus Tasch, 1961 †
- Class Protura
- Subphylum Myriapoda
- Subphylum Trilobitomorpha †
- Class Arachnomorpha (awaiting allocation)
- Class Arthropoda (awaiting allocation)
- Class Artiopoda †
- Class Crustaceomorpha incertae sedis †
- Class Dinocaridida †
- Class Labrophora incertae sedis
- Class Lamellipedia incertae sedis
- Class Megacheira †
- Class Thylacocephala †
- Class Xenocarida incertae sedis
- Order Canadaspidida † accepted as Hymenocarina †
- Order Cheloniellida †
- Order Emeraldellida † accepted as Arthropoda
- Order Fuxianhuiida †
- Order Habeliida †
- Order Hymenocarina †
- Order Isoxyida †
- Order Pectocaridida † accepted as Hymenocarina †
- Order Waptiida † accepted as Hymenocarina †
- Family Bomakellidae Fedonkin, 1987 †
- Family Burgessiidae Walcott, 1912 †
- Family Emeraldellidae Raymond, 1935 †
- Family Guangweicarididae Luo, Fu, Hu, Li, Hou, You, Pang & Liu, 2007 †
- Genus Aaveqaspis Peel & Stein, 2009 †
- Genus Acheronauta Pulsipher, Anderson, Wright, Kluessendorf, Mikulic & Schiffbauer, 2022 †
- Genus Arthroaspis Stein, Budd, Peel & Harper, 2013 †
- Genus Astutuscaris Jiao & Du, 2022 †
- Genus Bennettarthra Fayers, Trewin & Morrissey, 2010 †
- Genus Bushizheia O'Flynn & Liu in O'Flynn et al., 2020 †
- Genus Chuandianella Hou & Bergström, 1991 †
- Genus Dioxycaris Gürich, 1929 †
- Genus Dongshanocaris Hou, Bergström, Wang, Feng & Chen, 1999 †
- Genus Duraznovis Lara, Cariglino & Zavattieri in Lara et al., 2019 †
- Genus Duraznovs Lara, Cariglino & Zavattieri in Lara et al., 2019 † accepted as Duraznovis Lara, Cariglino & Zavattieri in Lara et al., 2019 †
- Genus Esmeraldacaris Waggoner, 2003 †
- Genus Fibulacaris Izquierdo-López & Caron, 2019 †
- Genus Kiisortoqia Stein, 2010 †
- Genus Kylinxia Zeng, Zhao, Niu, Zhu & Huang, 2020 †
- Genus Lihuacaris Jiao, Pates, Lerosey-Aubril, Ortega-Hernández, Yang, Lan & Zhang, 2021 †
- Genus Norikeya Tanaka, Siveter & Williams, 2013 †
- Genus Nothozoe Barrande, 1872 †
- Genus Nothozoe Barrande in Bigsby, 1868 † accepted as Nothozoe Barrande, 1872 †
- Genus Notozoe Zittel, 1885 † accepted as Nothozoe Barrande, 1872 †
- Genus Pakucaris Izquierdo-López & Caron, 2021 †
- Genus Pambdelurion Budd, 1998 †
- Genus Parvibellus Liu, Dunlop, Steiner & Shu, 2022 †
- Genus Pleuralata McCoy, Strother & Briggs, 2012 †
- Genus Pseudoangustidontus Van Roy & Tetlie, 2006 †
- Genus Pteroessa Hudson & Gosse, 1886
- Genus Sidneyia Walcott, 1911 †
- Genus Siriocaris Lagebro, Stein & Peel, 2009 †
- Genus Vermontcaris Pari, Briggs & Gaines, 2022 †
- Genus Youti Smith, Long, Dhungana, Dobson, Yang & Zhang, 2024 †
- Phylum Brachiopoda
- Phylum Bryozoa
- Phylum Cephalorhyncha incertae sedis
- Phylum Chaetognatha
- Phylum Chitinozoa †
- Phylum Chordata
- Phylum Cnidaria
- Phylum Ctenophora
- Phylum Cycliophora
- Phylum Cycloneuralia incertae sedis
- Phylum Ecdysozoa incertae sedis †
- Phylum Echinodermata
- Phylum Entoprocta
- Phylum Gastrotricha
- Phylum Gnathostomulida
- Phylum Hemichordata
- Phylum Hyolitha †
- Phylum Kinorhyncha
- Phylum Lobopoda †
- Phylum Loricifera
- Phylum Micrognathozoa
- Phylum Mollusca
- Phylum Monoblastozoa accepted as Animalia incertae sedis
- Phylum Nematoda
- Phylum Nematomorpha
- Phylum Nemertea
- Phylum Onychophora
- Phylum Orthonectida
- Phylum Phoronida
- Phylum Placozoa
- Phylum Platyhelminthes
- Phylum Pogonophora accepted as Siboglinidae Caullery, 1914
- Phylum Porifera
- Phylum Priapula accepted as Priapulida
- Phylum Priapulida
- Phylum Problematica † accepted as Animalia incertae sedis
- Phylum Rhombozoa
- Phylum Rotifera
- Phylum Scalidophora incertae sedis
- Phylum Sipuncula
- Phylum Tardigrada
- Phylum Trace fossils †
- Phylum Vendobionta †
- Phylum Vestimentifera accepted as Siboglinidae Caullery, 1914
- Phylum Vetulicolia †
- Phylum Vinctiplicata incertae sedis †
- Phylum Xenacoelomorpha
- Genus Trilobocaris Pribyl, 1953 †
- Kingdom Archaea
- Kingdom Bacteria
- Kingdom Chromista
- Kingdom Fungi
- Kingdom Plantae
- Kingdom Protista accepted as Protozoa
- Kingdom Protozoa
- Kingdom Viruses
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