| Acanthocnemidae Crowson, 1964 | | 1 | Species | Taxom |
| Achilidae Stål, 1866 | Achilid Planthoppers | 4 | Species | Taxom |
| Acrididae MacLeay, 1819 | Grasshoppers and locusts | 1 | Species | Taxom |
| Acroceridae Leach, 1815 | Hunch-back flies | 2 | Species | Taxom |
| Actinoscytinidae (Evans, 1956) | | 1 | Species | Taxom |
| Ademosynidae Ponomarenko, 1968 | | 3 | Species | Taxom |
| Aeolothripidae Uzel, 1895 | Banded thrips | 1 | Species | Taxom |
| Aerophasmidae Martynov, 1928 | | 9 | Species | Taxom |
| Aetheogrammatidae Ren & Michae..., 2008 | | 4 | Species | Taxom |
| Agaonidae Walker, 1848 | Fig wasp | 1 | Species | Taxom |
| Agyrtidae Thomson, 1859 | Primitive carrion beetles | 3 | Species | Taxom |
| Alavarommatidae Ortega-Blanc..., 2011 | | 1 | Species | Taxom |
| Albiococcidae Koteja, 2004 | | 1 | Species | Taxom |
| Alerollidae Kaddumi, 2005 | | 1 | Species | Taxom |
| Aleyrodidae Westwood, 1840 | Whiteflies | 11 | Species | Taxom |
| Alienopteridae Bai & al., 2016 | | 1 | Species | Taxom |
| Alydidae Amyot & Serv..., 1843 | Bean bugs | 1 | Species | Taxom |
| Ambermantidae Grimaldi, 2003 | | 1 | Species | Taxom |
| Amorphoscelidae Stål, 1877 | | 1 | Species | Taxom |
| Amphientomidae Enderlein, 1903 | Tropical Barklice | 2 | Species | Taxom |
| Ampulicidae Shuckard, 1840 | Ampulicid wasps | 24 | Species | Taxom |
| Anaplectidae Walker, 1868 | | 1 | Species | Taxom |
| Anaxyelidae Martynov, 1925 | Anaxyelids | 10 | Species | Taxom |
| Aneuretopsychidae Rasnitsyn & ..., 1990 | | 5 | Species | Taxom |
| Angarosphecidae Rasnitsyn, 1975 | | 7 | Species | Taxom |
| Anisolabididae Verhoeff, 1902 | | 9 | Species | Taxom |
| Anisopodidae Knab, 1912 | Window Midges | 8 | Species | Taxom |
| Anostostomatidae Saussure, 1859 | Wetas & King Crickets | 1 | Species | Taxom |
| Antefungivoridae Rohdendorf, 1938 | | 5 | Species | Taxom |
| Anthicidae Latreille, 1819 | Ant beetles | 2 | Species | Taxom |
| Anthocephalidae Kaddumi, 2005 | | 1 | Species | Taxom |
| Anthocoridae Fieber, 1837 | Flower bugs | 3 | Species | Taxom |
| Anthomyzidae Czerny, 1903 | Anthomyzid flies | 1 | Species | Taxom |
| Anthribidae Billberg, 1820 | Fungus Weevil | 4 | Species | Taxom |
| Aphididae Latreille, 1802 | Aphids | 25 | Species | Taxom |
| Apidae Latreille, 1802 | Bumble bees | 2 | Species | Taxom |
| Apsilocephalidae Nagatomi & al., 1991 | | 2 | Species | Taxom |
| Aptenoperissidae Rasnitsyn & ..., 2016 | | 1 | Species | Taxom |
| Apticoccidae Vea & Grimaldi, 2015 | | 3 | Species | Taxom |
| Aradidae Spinola, 1837 | Flat bug | 5 | Species | Taxom |
| Araripeblattidae Martins-Neto..., 2010 | | 3 | Species | Taxom |
| Araripeneuridae Martins-Neto..., 1989 | | 6 | Species | Taxom |
| Archaeatropidae Baz & Ortuño, 2000 | | 12 | Species | Taxom |
| Archaeocynipidae Rasnitsyn & ..., 1988 | | 3 | Species | Taxom |
| Archaeoserphitidae Engel, 2015 | | 1 | Species | Taxom |
| Archegocimicidae Handlirsch, 1906 | | 7 | Species | Taxom |
| Archijassidae Becker-Migdi..., 1962 | | 9 | Species | Taxom |
| Archimylacridae Handlirsch, 1906 | | 1 | Species | Taxom |
| Archipsyllidae Handlirsch, 1908 | | 5 | Species | Taxom |
| Archisargidae Rohdendorf, 1962 | | 5 | Species | Taxom |
| Archizelmiridae Rohdendorf, 1962 | | 4 | Species | Taxom |
| Argentinoblattidae Martins-Neto..., 2005 | | 0 | Species | Taxom |
| Ascalaphidae Rambur, 1842 | Owlflies | 2 | Species | Taxom |
| Ascalochrysidae Ren & Makarkin, 2009 | | 1 | Species | Taxom |
| Asilidae Latreille, 1802 | Assassin flies | 3 | Species | Taxom |
| Asiochaoboridae Hong & Wang, 1990 | | 4 | Species | Taxom |
| Atelestidae Hennig, 1970 | | 14 | Species | Taxom |
| Athericidae Stuckenberg, 1973 | Athericid flies | 7 | Species | Taxom |
| Attelabidae Billberg, 1820 | Leaf Rolling Weevil | 4 | Species | Taxom |
| Aulacidae Shuckard, 1842 | Aulacid wasps | 33 | Species | Taxom |
| Australochoristidae Krzemi?ski, ..., 2015 | | 1 | Species | Taxom |
| Austroniidae Kozlov, 1975 | Austroniid wasps | 1 | Species | Taxom |
| Axymyiidae Rohdendorf, 1946 | Axymyiidae flies | 3 | Species | Taxom |
| Babinskaiidae Martins-Neto..., 1989 | | 8 | Species | Taxom |
| Baissidae Rasnitsyn, 1975 | | 2 | Species | Taxom |
| Baissodidae Benton, 1993 | | 8 | Species | Taxom |
| Baissoferidae Sukatsheva, 1968 | | 5 | Species | Taxom |
| Baissogryllidae Gorochov, 1985 | | 33 | Species | Taxom |
| Baissomantidae Gratshev & Z..., 1993 | | 2 | Species | Taxom |
| Baissopteridae Martynova, 1961 | | 21 | Species | Taxom |
| Bajanzhargalanidae Storozhenko, 1992 | | 1 | Species | Taxom |
| Bajsaphididae Homan, Zyla ..., 2015 | | 5 | Species | Taxom |
| Baleyopterygidae N.D. Siniche..., 1985 | | 3 | Species | Taxom |
| Belidae Schönherr, 1826 | Belid Beetle | 3 | Species | Taxom |
| Belostomatidae Leach, 1815 | Alligator ticks | 7 | Species | Taxom |
| Berothidae Handlirsch, 1906 | Beaded lacewing | 28 | Species | Taxom |
| Bethylidae Halliday, 1839 | Bethylid wasps | 18 | Species | Taxom |
| Bethylonymidae Rasnitsyn, 1975 | | 2 | Species | Taxom |
| Bibionidae Fleming, 1821 | Bibionid flies | 5 | Species | Taxom |
| Bittacidae Handlirsch, 1906 | Hanging scorpionflies | 9 | Species | Taxom |
| Blattellidae (Karny, 1908) | German Cockroach | 8 | Species | Taxom |
| Blattidae Stephens, 1829 | American cockroaches | 4 | Species | Taxom |
| Blattulidae Vishnyokova, 1982 | | 32 | Species | Taxom |
| Blephariceridae Loew, 1861 | Mountain midges | 4 | Species | Taxom |
| Boholdoyidae Kovalev, 1985 | | 1 | Species | Taxom |
| Bolitophilidae Malloch, 1917 | | 1 | Species | Taxom |
| Bombyliidae Latreille, 1802 | Bee Flies | 4 | Species | Taxom |
| Boreidae Latreille, 1816 | Snow fleas | 1 | Species | Taxom |
| Bostrichidae Latreille, 1802 | Auger beetles | 1 | Species | Taxom |
| Bouretidae Martins-Neto, 2001 | | 1 | Species | Taxom |
| Brachycentridae Ulmer, 1903 | Humpless Casemaker Caddisflies | 1 | Species | Taxom |
| Brachyceridae (Billberg, 1820) | Brachycerids | 4 | Species | Taxom |
| Braconidae Latreille, 1829 | Braconid wasps | 17 | Species | Taxom |
| Brentidae Billberg, 1820 | Brenthidae | 8 | Species | Taxom |
| Brongniartiellidae Martynova, 1949 | | 2 | Species | Taxom |
| Buprestidae Leach, 1815 | Flat-headed wood-borers | 60 | Species | Taxom |
| Burmacoccidae Koteja, 2004 | | 1 | Species | Taxom |
| Burmitaphididae Poinar & Brown, 2005 | | 2 | Species | Taxom |
| Byrrhidae Latreille, 1804 | Moss beetles | 6 | Species | Taxom |
| Calamoceratidae Ulmer, 1905 | | 2 | Species | Taxom |
| Callaphididae (Borner, 1952) | | 1 | Species | Taxom |
| Calliphoridae Brauer & Ber..., 1889 | Blow flies | 1 | Species | Taxom |
| Caloblattinidae Vršanský & A..., 2000 | | 5 | Species | Taxom |
| Canadaphididae Richards, 1966 | | 4 | Species | Taxom |
| Cantharidae Imhoff, 1856 | Cantharids | 3 | Species | Taxom |
| Carabidae Latreille, 1802 | Carabid beetles | 56 | Species | Taxom |
| Caridae Thompson, 1992 | | 29 | Species | Taxom |
| Cecidomyiidae Newman, 1834 | Forest Midges | 11 | Species | Taxom |
| Cephidae Newman, 1834 | Cephids | 4 | Species | Taxom |
| Cerambycidae Latreille, 1802 | Long Horn beetles | 10 | Species | Taxom |
| Ceratopogonidae Newman, 1834 | Biting midge | 127 | Species | Taxom |
| Cercopidae Leach, 1815 | Froghopper | 1 | Species | Taxom |
| Cercopionidae Hamilton, 1990 | | 1 | Species | Taxom |
| Cerophytidae Latreille, 1834 | Cerophytid beetles | 6 | Species | Taxom |
| Cerylonidae Billberg, 1820 | Cerylid Kingfishers | 1 | Species | Taxom |
| Chaeteessidae Handlirsch, 1920 | | 6 | Species | Taxom |
| Chaoboridae Newman, 1834 | Phantom midge | 20 | Species | Taxom |
| Chelonariidae Blanchard, 1845 | Chelonarid beetles | 1 | Species | Taxom |
| Chimeromyiidae Grimaldi & C..., 2009 | | 8 | Species | Taxom |
| Chironomidae Erichson, 1842 | Chironomids | 49 | Species | Taxom |
| Chloroperlidae Okamoto, 1912 | Green stoneflies | 1 | Species | Taxom |
| Choristidae Esben-Petersen, 1915 | | 1 | Species | Taxom |
| Chresmodidae Haase, 1890 | | 9 | Species | Taxom |
| Chrysididae Latreille, 1802 | Chrysidid wasps | 7 | Species | Taxom |
| Chrysomelidae Latreille, 1802 | Casebearers | 9 | Species | Taxom |
| Chrysopidae Schneider, 1851 | And Green Lacewings | 11 | Species | Taxom |
| Chrysoraphidiidae Liu, Ren, & ..., 2014 | | 1 | Species | Taxom |
| Cicadellidae Latreille, 1802 | Cicadellids | 6 | Species | Taxom |
| Cicadidae Westwood, 1840 | Cicada | 49 | Species | Taxom |
| Cimbicidae Kirby, 1837 | Cimbicid sawflies | 1 | Species | Taxom |
| Cimbrophlebiidae Willmann, 1977 | Hangingfly | 3 | Species | Taxom |
| Cimicidae Latreille, 1802 | Bat bugs | 1 | Species | Taxom |
| Cixiidae Spinola, 1839 | Cixid planthoppers | 9 | Species | Taxom |
| Clambidae Fischer, 1821 | Fringe-winged beetles | 1 | Species | Taxom |
| Cleridae Latreille, 1802 | Checkered Beetle | 1 | Species | Taxom |
| Clothodidae Tillyard, 1937 | | 1 | Species | Taxom |
| Coccidae Stephens, 1829 | Soft scale | 1 | Species | Taxom |
| Coccinellidae Latreille, 1807 | Coccinelles | 2 | Species | Taxom |
| Coelocatiniidae Ponomarenko, 1968 | | 2 | Species | Taxom |
| Coleocatiniidae Ponomarenko ..., 2015 | | 1 | Species | Taxom |
| Compsocidae Mockford, 1967 | | 3 | Species | Taxom |
| Coniopterygidae Burmeister, 1839 | Dusty lacewings | 18 | Species | Taxom |
| Coptoclavidae Ponomarenko, 1961 | Extinct family | 18 | Species | Taxom |
| Coreidae Leach, 1815 | Broad-headed bugs | 6 | Species | Taxom |
| Corixidae Leach, 1815 | Lesser Water-Boatman | 25 | Species | Taxom |
| Corydalidae Burmeister, 1839 | Dobsonflies | 4 | Species | Taxom |
| Corydiidae de Saussure, 1864 | Sand cockroaches | 6 | Species | Taxom |
| Crabronidae Latreille, 1802 | Bee Wolves | 11 | Species | Taxom |
| Cratomastotermitidae Engel, Grima..., 2009 | | 1 | Species | Taxom |
| Cretamyzidae Heie, 1992 | | 1 | Species | Taxom |
| Cretomantidae Gratshev & Z..., 1994 | | 1 | Species | Taxom |
| Cretostylopidae Grimalid & K..., 2005 | | 1 | Species | Taxom |
| Cryptophagidae Kirby, 1937 | Mould beetles | 7 | Species | Taxom |
| Cucujidae Latreille, 1802 | Flat bark beetles | 1 | Species | Taxom |
| Culicidae Meigen, 1818 | Mosquito | 4 | Species | Taxom |
| Cupedidae Laporte, 1836 | Cupedids | 45 | Species | Taxom |
| Curculionidae Latreille, 1802 | Ambrosia beetles | 34 | Species | Taxom |
| Cydnidae Billberg, 1820 | Burrower bugs | 8 | Species | Taxom |
| Cynipidae Latreille, 1802 | Cynipid gall wasps | 5 | Species | Taxom |
| Dascillidae Guérin-Ménev..., 1843 | Orchid beetles | 1 | Species | Taxom |
| Demopteridae Carpenter, 1950 | | 1 | Species | Taxom |
| Dermestidae Hope, 1840 | Carpet beetles | 3 | Species | Taxom |
| Diadocidiidae Winnertz, 1863 | | 1 | Species | Taxom |
| Diapriidae Latreille, 1796 | Diapriid wasps | 8 | Species | Taxom |
| Dictyopharidae Spinola, 1839 | Dictyopharid Planthoppers | 1 | Species | Taxom |
| Diechoblattinidae Handlirsch, 1906 | | 3 | Species | Taxom |
| Diplatyidae (Verhoeff, 1902) | | 1 | Species | Taxom |
| Dipseudopsidae Ulmer, 1904 | | 3 | Species | Taxom |
| Dipteromantispidae Makarkin & al., 2013 | | 4 | Species | Taxom |
| Dolichopodidae Latreille, 1809 | Long legged flies | 10 | Species | Taxom |
| Dryinidae Haliday, 1840 | Dryinid wasps | 23 | Species | Taxom |
| Dysmorphoptilidae Handlirsch, 1906 | | 1 | Species | Taxom |
| Dysoneuridae Sukatsheva, 1968 | | 4 | Species | Taxom |
| Dytiscidae Leach, 1815 | Diving beetles | 15 | Species | Taxom |
| Eadiidae Vršanský, 2009 | | 1 | Species | Taxom |
| Ebboidae Perrichot, N..., 2006 | | 1 | Species | Taxom |
| Ectobiidae (Brunner von ..., 1865) | Wood cockroaches | 1 | Species | Taxom |
| Elateridae Leach, 1815 | Click Beetle | 32 | Species | Taxom |
| Elcanidae Handlirsch, 1906 | | 21 | Species | Taxom |
| Electralbertidae Botosaneanu ..., 1983 | | 1 | Species | Taxom |
| Electrentomidae Enderlein, 1911 | | 2 | Species | Taxom |
| Electrococcidae Koteja, 2000 | | 4 | Species | Taxom |
| Elektraphididae Steffan, 1968 | | 3 | Species | Taxom |
| Elipsocidae Pearman, 1936 | Damp Barklice | 2 | Species | Taxom |
| Elliidae Krzeminska, ..., 1993 | | 3 | Species | Taxom |
| Ellinaphididae Kania & Wegi..., 2008 | | 28 | Species | Taxom |
| Elodophthalmidae Kirejtshuk &..., 2008 | | 2 | Species | Taxom |
| Embolemidae Förster, 1856 | Embolemid wasps | 3 | Species | Taxom |
| Empheriidae Enderlein, 1906 | | 5 | Species | Taxom |
| Empididae Latreille, 1809 | Balloon flies | 24 | Species | Taxom |
| Encyrtidae Walker, 1837 | Encyrtid wasps | 1 | Species | Taxom |
| Eneopteridae (Saussure, 1893) | Bush cricket | 2 | Species | Taxom |
| Englathaumatidae Novokshonov ..., 2016 | | 2 | Species | Taxom |
| Enicocephalidae Stål, 1860 | Gnat bug | 5 | Species | Taxom |
| Eoichneumonidae (Jell & Duncan, 1986) | | 15 | Species | Taxom |
| Eolepidopterigidae Rasnitsyn, 1983 | | 2 | Species | Taxom |
| Eomeropidae Cockerell, 1909 | | 3 | Species | Taxom |
| Eoscarterellidae Evans, 1956 | | 1 | Species | Taxom |
| Ephialtitidae Handlirsch, 1906 | | 10 | Species | Taxom |
| Erebidae Leach, 1815 | Erebid Moths | 1 | Species | Taxom |
| Eremazidae Iablokoff-Kh..., 1977 | | 2 | Species | Taxom |
| Eremochaetidae Ussatchov, 1968 | | 18 | Species | Taxom |
| Eriococcidae Cockerell, 1899 | Eriococcid scales | 1 | Species | Taxom |
| Eucinetidae Lacordaire, 1857 | Plate-thigh beetle | 4 | Species | Taxom |
| Eucnemidae Eschscholtz, 1829 | Click Beetles | 1 | Species | Taxom |
| Eulichadidae Crowson, 1973 | Forest stream beetle | 1 | Species | Taxom |
| Eumastacidae Burr, 1898 | Matchstick grasshoppers | 1 | Species | Taxom |
| Evaniidae Latreille, 1802 | Ensign wasp | 29 | Species | Taxom |
| Falsiformicidae Rasnitsyn, 1975 | | 2 | Species | Taxom |
| Figitidae Thomson, 1862 | Figitid wasps | 8 | Species | Taxom |
| Flatidae Spinola, 1839 | Flatid planthoppers | 1 | Species | Taxom |
| Formicidae Latreille, 1809 | Ants | 111 | Species | Taxom |
| Fulgoridae Latreille, 1807 | Fulgorid Planthopper | 1 | Species | Taxom |
| Fulgoridiidae Handlirsch, 1939 | | 1 | Species | Taxom |
| Fungivoritidae Rohdendorf, 1957 | | 1 | Species | Taxom |
| Fuziidae Vršanský, Li..., 2009 | | 1 | Species | Taxom |
| Gasteruptiidae Ashmead, 1900 | Carrot Wasps | 2 | Species | Taxom |
| Gelastocoridae Kirkaldy, 1897 | Toad bug | 4 | Species | Taxom |
| Genaphididae Handlirsch, 1907 | | 3 | Species | Taxom |
| Geometridae Leach, 1815 | Cankerworm moths | 0 | Species | Taxom |
| Geotrupidae Latreille, 1802 | Dor beetles | 6 | Species | Taxom |
| Geraridae Scudder, 1885 | | 1 | Species | Taxom |
| Gerocynipidae Kovalev, 1994 | | 5 | Species | Taxom |
| Gerridae Leach, 1815 | Jesus bugs | 1 | Species | Taxom |
| Glaphyridae MacLeay, 1819 | Bumble bee scarab beetle | 23 | Species | Taxom |
| Glaresidae Kolbe, 1905 | Enigmatic scarab beetle | 6 | Species | Taxom |
| Glossosomatidae Wallengren, 1891 | Little Black Caddisflies | 1 | Species | Taxom |
| Grammolingiidae Ren, 2002 | | 7 | Species | Taxom |
| Grammostylidae Panfilov, 1980 | | 1 | Species | Taxom |
| Grassyaphididae Heie, 2000 | | 1 | Species | Taxom |
| Grimaldiellidae Koteja, 2000 | | 2 | Species | Taxom |
| Gripopterygidae Enderlein, 1909 | | 2 | Species | Taxom |
| Gryllidae Bolivar, 1878 | Crickets | 10 | Species | Taxom |
| Gryllomantidae Gorochov, 2006 | | 1 | Species | Taxom |
| Gryllotalpidae Saussure, 1870 | Mole cricket | 5 | Species | Taxom |
| Gyrinidae Latreille, 1802 | Whirligig beetle | 7 | Species | Taxom |
| Gyroblattidae Durden, 1969 | | 1 | Species | Taxom |
| Haglidae Handlirsch, 1906 | Hump-winged cricket | 7 | Species | Taxom |
| Haglotettigoniidae Gorochov, 1988 | | 2 | Species | Taxom |
| Halictidae Thomson, 1869 | Flower bees | 1 | Species | Taxom |
| Haliplidae Aubé, 1836 | Crawling Water Beetle | 3 | Species | Taxom |
| Hammanococcidae Koteja & Azar, 2008 | | 1 | Species | Taxom |
| Hebeigrammidae Hong, 2003 | | 1 | Species | Taxom |
| Helophoridae (Leach, 1815) | Water scavenger beetles | 1 | Species | Taxom |
| Heloridae Förster, 1856 | Helorid wasps | 11 | Species | Taxom |
| Hemerobiidae Latreille, 1802 | Brown Lacewing | 4 | Species | Taxom |
| Hesperiidae Latreille, 1809 | Skipper | 2 | Species | Taxom |
| Heteroceridae MacLeay, 1825 | Mud beetles | 2 | Species | Taxom |
| Hilarimorphidae Hendel, 1936 | Hilarimorphid flies | 6 | Species | Taxom |
| Hispanocaderidae Golub, Popov..., 2012 | | 1 | Species | Taxom |
| Histeridae Gyllenhal, 1808 | Clown beetle | 11 | Species | Taxom |
| Hodgsonicoccidae Vea & Grimaldi, 2015 | | 1 | Species | Taxom |
| Hodotermitidae Desneux, 1904 | Harvester termites | 5 | Species | Taxom |
| Hoploridiidae Popov & Shch..., 1991 | | 1 | Species | Taxom |
| Huaxiasciaritidae (Hong, 2002) | | 2 | Species | Taxom |
| Hybosoridae Erichson, 1847 | Pill scarab beetles | 13 | Species | Taxom |
| Hydraenidae Mulsant, 1844 | Cascade Beetles | 2 | Species | Taxom |
| Hydrobiosidae Ulmer, 1905 | | 1 | Species | Taxom |
| Hydrometridae Billberg, 1820 | Marsh treader | 6 | Species | Taxom |
| Hydrophilidae Latreille, 1802 | Silver Water Beetles | 38 | Species | Taxom |
| Hydroptilidae Stephens, 1836 | Micro caddisflies | 8 | Species | Taxom |
| Hydroscaphidae LeConte, 1874 | Skiff beetle | 1 | Species | Taxom |
| Hylicellidae Evans, 1956 | | 4 | Species | Taxom |
| Ichneumonidae Latreille, 1802 | Ichneumon flies | 62 | Species | Taxom |
| Ichneumonomimidae Rasnitsyn, 1975 | | 2 | Species | Taxom |
| Ignotingidae Zhang, Golub..., 2005 | | 1 | Species | Taxom |
| Inkaidae Koteja, 1989 | | 1 | Species | Taxom |
| Ipsviciidae Tillyard, 1919 | | 1 | Species | Taxom |
| Ironomyiidae McAlpine & M..., 1966 | Ironic flies | 23 | Species | Taxom |
| Ithonidae Newman, 1838 | Ithonid lacewings | 2 | Species | Taxom |
| Ithyceridae (Schönherr, 1826) | New York weevil | 3 | Species | Taxom |
| Jacobsoniidae Heller, 1926 | Jacobson's beetles | 3 | Species | Taxom |
| Jantarimantidae Vrsansky, 2002 | | 1 | Species | Taxom |
| Jascopidae Hamilton, 1971 | | 7 | Species | Taxom |
| Jersicoccidae Koteja, 2000 | | 2 | Species | Taxom |
| Jezzinothripidae zur Strassen, 1973 | | 2 | Species | Taxom |
| Jurapriidae Rasnitsyn, 1983 | | 1 | Species | Taxom |
| Kalligrammatidae Handlirsch, 1906 | | 18 | Species | Taxom |
| Kalotermitidae Froggatt, 1897 | Dampwood termites | 3 | Species | Taxom |
| Karabasiidae Popov, 1985 | | 1 | Species | Taxom |
| Kateretidae Kirkby, 1837 | Pollen Beetles | 1 | Species | Taxom |
| Keroplatidae Rondani, 1856 | Fungus gnats | 4 | Species | Taxom |
| Khatangaphididae Heie, 2000 | | 2 | Species | Taxom |
| Khutelchalcididae Rasnitsyn & al., 2004 | | 1 | Species | Taxom |
| Kinzelbachillidae Pohl & Beutel, 2016 | | 1 | Species | Taxom |
| Kobdocoridae Popov, 1986 | | 1 | Species | Taxom |
| Kozariidae Vea & Grimaldi, 2015 | | 2 | Species | Taxom |
| Kukaspididae Koteja & Poinar, 2001 | | 1 | Species | Taxom |
| Labiduridae Verhoeff, 1902 | Long-horned earwig | 4 | Species | Taxom |
| Labiococcidae Koteja, 2000 | | 2 | Species | Taxom |
| Labradorocoleidae Ponomarenko, 1969 | | 1 | Species | Taxom |
| Lachesillidae Pearman, 1936 | Fateful Barklice | 1 | Species | Taxom |
| Lalacidae Hamilton, 1990 | | 17 | Species | Taxom |
| Lampyridae Latreille, 1817 | Fireflies | 1 | Species | Taxom |
| Lasiosynidae Kirejtshuk, ..., 2010 | | 14 | Species | Taxom |
| Latridiidae Erichson, 1842 | Minute brown scavenger beetle | 4 | Species | Taxom |
| Lebanaphididae Heie, 2000 | | 2 | Species | Taxom |
| Lebanococcidae Koteja & Azar, 2008 | | 1 | Species | Taxom |
| Leiodidae Fleming, 1821 | Round fungus beetles | 7 | Species | Taxom |
| Lemmatophoridae Sellards, 1909 | | 4 | Species | Taxom |
| Lepiceridae Hinton, 1936 | | 1 | Species | Taxom |
| Lepidostomatidae Ulmer, 1903 | Bizarre Caddisflies | 2 | Species | Taxom |
| Leptoceridae Leach, 1815 | Long Horned caddisflies | 2 | Species | Taxom |
| Leptopodidae Amyot and Se..., 1843 | Spiny shore bugs | 3 | Species | Taxom |
| Leuctridae Klapálek, 1905 | Needle Or Willow Stoneflies | 1 | Species | Taxom |
| Liadopsyllidae Martynov, 1927 | | 3 | Species | Taxom |
| Liadytidae Ponomarenko, 1977 | | 4 | Species | Taxom |
| Liberiblattinidae Vrsansky, 2002 | | 5 | Species | Taxom |
| Ligavenidae Hamilton, 1992 | | 1 | Species | Taxom |
| Limnephilidae Kolenati, 1848 | Northern caddisflies | 88 | Species | Taxom |
| Limoniidae (Speiser, 1909) | Craneflies | 17 | Species | Taxom |
| Liopteridae Ashmead, 1895 | Liopterid wasps | 2 | Species | Taxom |
| Liposcelididae Enderlein, 1911 | Booklice | 1 | Species | Taxom |
| Lithoscarabaeidae Nikolajev, 1992 | | 3 | Species | Taxom |
| Locustopsidae Handlirsch, 1906 | | 29 | Species | Taxom |
| Lonchopteridae Curtis, 1839 | Pointed-wing flies | 2 | Species | Taxom |
| Lophioneuridae Tillyard, 1921 | | 3 | Species | Taxom |
| Lucanidae Latreille, 1804 | Stag Beetle | 14 | Species | Taxom |
| Lycaenidae Leach, 1815 | Blue butterflies | 2 | Species | Taxom |
| Lygaeidae Schilling, 1829 | Chinch bugs | 6 | Species | Taxom |
| Lygistorrhinidae Hendel, 1936 | Long beaked fungus gnat | 9 | Species | Taxom |
| Lygobiidae Mitchell, 1908 | | 1 | Species | Taxom |
| Lymexylidae Fleming, 1821 | Ship-timber beetle | 1 | Species | Taxom |
| Lyonetiidae Stainton, 1854 | Lyonet Moths | 1 | Species | Taxom |
| Magnocoleidae Hong, 1998 | | 1 | Species | Taxom |
| Maimetshidae (Rasnitsyn, 1975) | | 15 | Species | Taxom |
| Manicapsocidae (Mockford, 1967) | | 2 | Species | Taxom |
| Manipulatoridae Vrsansky & B..., 2015 | | 1 | Species | Taxom |
| Mantidae Burmeister, 1838 | Mantids | 1 | Species | Taxom |
| Mantispidae Leach, 1815 | Mantid lacewings | 6 | Species | Taxom |
| Mantoblattidae Gorochov, 2006 | | 1 | Species | Taxom |
| Mastotermitidae Desneux, 1904 | | 3 | Species | Taxom |
| Matsucoccidae Morrison, 1927 | Pine bark scales | 4 | Species | Taxom |
| Megachilidae Schenk, 1860 | And Resin Bees | 2 | Species | Taxom |
| Megalodontesidae Konow, 1897 | | 5 | Species | Taxom |
| Megalyridae Schletterer, 1889 | Megalyrid wasps | 16 | Species | Taxom |
| Megaspilidae Ashmead, 1893 | Megaspilid wasps | 4 | Species | Taxom |
| Melandryidae Leach, 1815 | False Darkling Beetle | 5 | Species | Taxom |
| Melanthripidae Bagnall, 1913 | | 2 | Species | Taxom |
| Melittosphecidae Poinar & Dan..., 2006 | | 1 | Species | Taxom |
| Meloidae Gyllenhal, 1810 | Blister Beetle | 2 | Species | Taxom |
| Membracidae Germar, 1821 | Horned Treehoppers | 1 | Species | Taxom |
| Meropeidae Espen-Petersen, 1921 | Earwig-flies | 2 | Species | Taxom |
| Mesoblattinidae Handlirsch, 1906 | | 65 | Species | Taxom |
| Mesochrysopidae Handlirsch, 1906 | | 32 | Species | Taxom |
| Mesogereonidae Tillyard, 1921 | | 1 | Species | Taxom |
| Mesoleuctridae Sinitshenkova, 1982 | | 1 | Species | Taxom |
| Mesolygaeidae Zhang, 1991 | | 2 | Species | Taxom |
| Mesopentacoridae Popov, 1968 | | 2 | Species | Taxom |
| Mesopsocidae Enderlein, 1903 | Middle Barklice | 1 | Species | Taxom |
| Mesopsychidae Tillyard, 1917 | | 6 | Species | Taxom |
| Mesoraphidiidae Martynov, 1925 | | 64 | Species | Taxom |
| Mesosciophilidae Rohdendorf, 1946 | | 10 | Species | Taxom |
| Mesoserphidae Kozlov, 1970 | | 7 | Species | Taxom |
| Mesotrephidae Popov, 1971 | | 1 | Species | Taxom |
| Mesoveliidae Douglas and ..., 1867 | Pond treaders | 5 | Species | Taxom |
| Mesozoicaphididae Heie, 1992 | | 6 | Species | Taxom |
| Micromalthidae Barber, 1913 | Micromalthid beetles | 1 | Species | Taxom |
| Microphysidae Dohrn, 1859 | Microphysid bugs | 1 | Species | Taxom |
| Micropterigidae Herrich-Schä..., 1855 | Mandibulate Archaic Moths | 5 | Species | Taxom |
| Mimarachnidae Shcherbakov, 2007 | | 5 | Species | Taxom |
| Miridae Hahn, 1831 | Capsid bugs | 7 | Species | Taxom |
| Mogoplistidae Saussure, 1877 | Scaly cricket | 1 | Species | Taxom |
| Monotomidae Laporte, 1840 | Minute Clubbed Beetles | 6 | Species | Taxom |
| Mordellidae Latreille, 1802 | Pintail beetles | 7 | Species | Taxom |
| Mutillidae André, 1907 | Cow ant | 1 | Species | Taxom |
| Mycetophilidae Newman, 1834 | Fungus Gnat | 87 | Species | Taxom |
| Mydidae Bezzi, 1903 | Mydas flies | 1 | Species | Taxom |
| Myerslopiidae Evans, 1957 | | 7 | Species | Taxom |
| Mylacridae Scudder, 1886 | | 1 | Species | Taxom |
| Mymaridae Haliday, 1833 | Fairflies | 10 | Species | Taxom |
| Mymarommatidae Debauche, 1948 | False fairy wasp | 10 | Species | Taxom |
| Myrmecophilidae Saussure, 1874 | Ant cricket | 1 | Species | Taxom |
| Myrmeleontidae Latreille, 1802 | Ant lions | 22 | Species | Taxom |
| Mythicomyiidae Melander, 1902 | Micro Bee Flies | 2 | Species | Taxom |
| Nannochoristidae Tillyard, 1917 | | 1 | Species | Taxom |
| Naucoridae Leach, 1815 | Creeping water bug | 8 | Species | Taxom |
| Neazoniidae Szwedo, 2007 | | 4 | Species | Taxom |
| Necrotauliidae Handlirsch, 1906 | | 13 | Species | Taxom |
| Nemestrinidae Macquart, 1834 | Tangle-veined flies | 8 | Species | Taxom |
| Nemonychidae Bedel, 1882 | Nemonychid weevils | 51 | Species | Taxom |
| Nemopteridae Rambur, 1842 | Spoonwings | 4 | Species | Taxom |
| Nemouridae Newman, 1853 | Brown stoneflies | 3 | Species | Taxom |
| Neoblattariae Scudder, 1886 | | 2 | Species | Taxom |
| Nepticulidae Stainton, 1854 | Leaf miners | 6 | Species | Taxom |
| Ningxiapsychidae Hong & Li, 2004 | | 1 | Species | Taxom |
| Nitidulidae Latreille, 1802 | Nitidules | 6 | Species | Taxom |
| Noctuidae Latreille, 1809 | Armyworms | 4 | Species | Taxom |
| Notoligotomidae Davis, 1940 | | 1 | Species | Taxom |
| Notonectidae Latreille, 1802 | Back Swimmers | 5 | Species | Taxom |
| Nymphalidae Rafinesque, 1815 | Admirals | 3 | Species | Taxom |
| Nymphidae Rambur, 1842 | Split-footed lacewing | 15 | Species | Taxom |
| Ochodaeidae Mulsant & Rey, 1870 | Sand-loving scarab beetle | 3 | Species | Taxom |
| Ochteridae Kirkaldy, 1906 | Velvety shore bug | 4 | Species | Taxom |
| Odontoceridae Wallengren, 1891 | Mortarjoint Casemaker Caddisflies | 1 | Species | Taxom |
| Oecanthoperlidae Storozhenko, 1988 | | 1 | Species | Taxom |
| Oedemeridae Latreille, 1810 | False Blister Beetle | 2 | Species | Taxom |
| Oligotomidae Enderlein, 1909 | | 1 | Species | Taxom |
| Ommatidae Sharp & Muir, 1912 | | 89 | Species | Taxom |
| Opetiidae Rondani, 1856 | Flat-footed flies | 4 | Species | Taxom |
| Ortheziidae Green, 1896 | Ensign coccids | 4 | Species | Taxom |
| Orthophlebiidae Handlirsch, 1906 | | 14 | Species | Taxom |
| Orussidae Newman, 1834 | Orussid wasps | 2 | Species | Taxom |
| Osmylidae Leach, 1815 | Giant lacewings | 18 | Species | Taxom |
| Othniodellithidae Engel & Huang, 2016 | | 1 | Species | Taxom |
| Oviparosiphidae Shaposhnikov, 1979 | | 19 | Species | Taxom |
| Pachylembiidae Ross, 2001 | | 1 | Species | Taxom |
| Pachymeridiidae Handlirsch, 1906 | | 19 | Species | Taxom |
| Pachyneuridae Schiner, 1864 | Dark-winged fungus gnats | 1 | Species | Taxom |
| Pachytroctidae Enderlein, 1911 | Thick Barklice | 3 | Species | Taxom |
| Palaeoaphididae Richards, 1966 | | 19 | Species | Taxom |
| Palaeoleontidae Martins-Neto, 1992 | Ant lion | 18 | Species | Taxom |
| Palaeontinidae Handlirsch, 1906 | Giant cicadas | 25 | Species | Taxom |
| Pamphiliidae Cameron, 1890 | Leaf-rolling sawflies | 1 | Species | Taxom |
| Panfiloviidae Makarkin, 1990 | | 1 | Species | Taxom |
| Papilionidae Latreille, 1802 | Apollos | 1 | Species | Taxom |
| Parakseneuridae Yang & al., 2012 | | 1 | Species | Taxom |
| Parandrexidae Kirejtshuk, 1994 | | 1 | Species | Taxom |
| Paraxymyiidae Rohdendorf, 1946 | Paxylommatid wasps | 1 | Species | Taxom |
| Paroryssidae Martynov, 1925 | | 2 | Species | Taxom |
| Parvaverrucosidae Poinar & Brown, 2006 | | 1 | Species | Taxom |
| Passalopalpidae Boucher & Bai, 2016 | | 1 | Species | Taxom |
| Pediciidae Osten Sacken, 1860 | Hairy-Eyed Crane Flies | 3 | Species | Taxom |
| Pelecinidae Haliday, 1839 | Ancestral And Modern Pelecinid Wasps | 48 | Species | Taxom |
| Pennygullaniidae Koteja & Azar, 2008 | | 1 | Species | Taxom |
| Pentatomidae Leach, 1815 | Lesser shield bugs | 1 | Species | Taxom |
| Peradeniidae Naumann & Ma..., 1985 | | 1 | Species | Taxom |
| Pereboriidae Zalessky, 1930 | | 2 | Species | Taxom |
| Perforissidae Shcherbakov, 2007 | | 9 | Species | Taxom |
| Perissommatidae Colless, 1962 | | 2 | Species | Taxom |
| Perlariopseidae N.D. Siniche..., 1985 | | 4 | Species | Taxom |
| Perlidae (Latreille, 1802) | Common stoneflies | 4 | Species | Taxom |
| Perlodidae Klapálek, 1912 | Perlodid stoneflies | 1 | Species | Taxom |
| Permelcanidae Sharov, 1962 | | 2 | Species | Taxom |
| Permelytridae Tillyard, 1931 | | 1 | Species | Taxom |
| Permochoristidae Tillyard, 1918 | | 3 | Species | Taxom |
| Permocupedidae Martynov, 1933 | | 1 | Species | Taxom |
| Phasmatidae Roberts, 1944 | Walking sticks | 1 | Species | Taxom |
| Phasmomimidae Sharov, 1968 | | 15 | Species | Taxom |
| Philopotamidae Stephens, 1829 | Finger Net caddisflies | 7 | Species | Taxom |
| Phlaeothripidae Uzel, 1895 | Thrips | 1 | Species | Taxom |
| Phoridae Curtis, 1833 | Coffin Flies | 18 | Species | Taxom |
| Phryganeidae (Leach, 1815) | Giant casemaker | 7 | Species | Taxom |
| Phthanoxenidae Engel & Huang, 2016 | | 1 | Species | Taxom |
| Phylloxeridae Herrich-Scha..., 1854 | Phylloxeran Aphids | 1 | Species | Taxom |
| Phyloblattidae Schneider, 1983 | | 1 | Species | Taxom |
| Pieridae Duponchel, 1835 | Brimstones | 1 | Species | Taxom |
| Piesmatidae Amyot & Audi..., 1843 | Ash grey leaf bug | 1 | Species | Taxom |
| Platygastridae Haliday, 1833 | Platygastrid wasps | 1 | Species | Taxom |
| Platyperlidae Sinitshenkova, 1982 | | 1 | Species | Taxom |
| Platypezidae Fallen, 1815 | Flat footed flies | 14 | Species | Taxom |
| Pleciofungivoridae Rohdendorf, 1946 | | 7 | Species | Taxom |
| Pleciomimidae Rodendorf, 1949 | | 3 | Species | Taxom |
| Plectrotarsidae Mosely, 1953 | | 1 | Species | Taxom |
| Pleocomidae LeConte, 1861 | Rain beetle | 3 | Species | Taxom |
| Plumalexiidae Brothers, 2011 | | 1 | Species | Taxom |
| Podoscirtidae Saussure, 1878 | | 3 | Species | Taxom |
| Polycentropodidae Ulmer, 1903 | Tube Maker Caddisflies | 4 | Species | Taxom |
| Polyphagidae (Walker, 1868) | Desert Cockroaches | 1 | Species | Taxom |
| Pompilidae Latreille, 1805 | Pompilid wasps | 10 | Species | Taxom |
| Ponopterixidae Nel & al., 2014 | | 2 | Species | Taxom |
| Praeaulacidae Rasnitsyn, 1972 | | 14 | Species | Taxom |
| Praeichneumonidae Rasnitsyn, 1983 | | 5 | Species | Taxom |
| Praesiricidae Rasnitsyn, 1968 | | 14 | Species | Taxom |
| Prezottophlebiidae Martins-Neto, 2007 | | 1 | Species | Taxom |
| Primipentatomidae Yao, Cai, Ri..., 2013 | | 5 | Species | Taxom |
| Probnidae Sellards, 1909 | | 1 | Species | Taxom |
| Procercopidae Handlirsch, 1906 | | 9 | Species | Taxom |
| Procramptonomyiidae Kovalev, 1985 | | 2 | Species | Taxom |
| Proctotrupidae Latreille, 1802 | Proctotrupid wasps | 15 | Species | Taxom |
| Progonocimicidae Handlirsch, 1906 | | 11 | Species | Taxom |
| Prohemerobiidae Handlirsch, 1906 | | 4 | Species | Taxom |
| Prophalangopsidae Saussure, 1878 | Grigs | 34 | Species | Taxom |
| Prosbolidae Handlirsch, 1906 | | 1 | Species | Taxom |
| Proscopiidae Serville, 1838 | Jumping sticks | 1 | Species | Taxom |
| Prostomidae C. G. Thomson, 1859 | Jugular-horned beetle | 1 | Species | Taxom |
| Protapioceridae Ren, 1998 | | 4 | Species | Taxom |
| Protembiidae Tillyard, 1937 | | 1 | Species | Taxom |
| Protendipedidae Rohdendorf, 1962 | | 1 | Species | Taxom |
| Protodiplatyidae Martynov, 1925 | | 6 | Species | Taxom |
| Protomphralidae Rohdendorf, 1957 | | 2 | Species | Taxom |
| Protopleciidae Rohdendorf, 1946 | | 6 | Species | Taxom |
| Protopsyllidiidae Becker-Migdi..., 1960 | | 5 | Species | Taxom |
| Protorhyphidae Handlirsch, 1906 | | 1 | Species | Taxom |
| Pseudococcidae Heymons, 1915 | Mealy Bugs | 1 | Species | Taxom |
| Pseudonerthridae Martins-Neto..., 2005 | | 1 | Species | Taxom |
| Pseudopolycentropodidae Handlirsch, 1925 | | 2 | Species | Taxom |
| Pseudopulicidae Gao, Shih & Ren, 2012 | | 3 | Species | Taxom |
| Pseudosiricidae Handlirsch, 1908 | | 1 | Species | Taxom |
| Psychodidae Newman, 1834 | Drain flies | 44 | Species | Taxom |
| Psychomyiidae Walker, 1852 | Net Tube Caddisflies | 1 | Species | Taxom |
| Psychopsidae Handlirsch, 1906 | Silky lacewing | 29 | Species | Taxom |
| Psyllipsocidae Enderlein, 1903 | Cave Barklice | 2 | Species | Taxom |
| Pteromalidae Dalman, 1820 | Pteromalid wasps | 1 | Species | Taxom |
| Ptiliidae Heer, 1843 | Feather-wing beetles | 2 | Species | Taxom |
| Ptilodactylidae Laporte, 1836 | Ptilodactylid beetles | 1 | Species | Taxom |
| Ptinidae Latreille, 1802 | Death-watch and Spider Beetles | 2 | Species | Taxom |
| Ptismidae Kirejtshuk &..., 2016 | | 1 | Species | Taxom |
| Ptychopteridae Osten Sacken, 1862 | Phantom crane flies | 21 | Species | Taxom |
| Putoidae Beardsley, 1969 | Giant mealybugs | 1 | Species | Taxom |
| Pygidicranidae (Verhoeff, 1902) | | 7 | Species | Taxom |
| Pyralidae Latreille, 1802 | Flour Moths | 1 | Species | Taxom |
| Pyrochroidae Latreille, 1807 | Cardinal beetles | 1 | Species | Taxom |
| Pyrrhocoridae Dohrn, 1859 | Cotton stainers | 1 | Species | Taxom |
| Radiophronidae Ortega-Blanc..., 2010 | | 2 | Species | Taxom |
| Rafaelianidae Engel & Nel, 2017 | | 2 | Species | Taxom |
| Raphidiidae Latreille, 1810 | Raphidiid snakeflies | 1 | Species | Taxom |
| Raphidiomimidae Vishniakova, 1973 | | 16 | Species | Taxom |
| Raphoglidae Béthoux & al., 2002 | | 1 | Species | Taxom |
| Rasnitsynaphididae Homan & Wegi..., 2011 | | 3 | Species | Taxom |
| Retinaphididae Heie, 2000 | | 2 | Species | Taxom |
| Rhachiberothidae Tjeder, 1959 | Thorny lacewing | 13 | Species | Taxom |
| Rhagionemestriidae Ussatchov, 1968 | | 4 | Species | Taxom |
| Rhagionidae Latreille, 1802 | Snipe flies | 25 | Species | Taxom |
| Rhinotermitidae Froggatt, 1897 | Subterranean termites | 1 | Species | Taxom |
| Rhipiphoridae Gemminger & ..., 1870 | Hump back beetles | 2 | Species | Taxom |
| Rhopalidae Amyot & Serv..., 1843 | Rhopalid Bugs | 1 | Species | Taxom |
| Rhopalosomatidae Ashmead, 1896 | Rhopalosomatid wasps | 2 | Species | Taxom |
| Rhynchitidae Gistel, 1848 | Leaf-rolling weevils | 1 | Species | Taxom |
| Ripiphoridae Gemminger & ..., 1870 | Rhipiphoridae | 2 | Species | Taxom |
| Roeslerianidae Martins-Neto, 1997 | | 1 | Species | Taxom |
| Roproniidae Bradley, 1905 | Roproniid wasps | 5 | Species | Taxom |
| Saldidae Amyot and Se..., 1843 | Shore bug | 14 | Species | Taxom |
| Santanmantidae Grimaldi, 2003 | | 1 | Species | Taxom |
| Sapygidae Latreille, 1810 | Club-horned wasps | 2 | Species | Taxom |
| Saurophthiridae Ponomarenko, 1986 | | 2 | Species | Taxom |
| Scarabaeidae Latreille, 1802 | Dung beetles | 61 | Species | Taxom |
| Scatopsidae Newman, 1834 | Dung midges | 2 | Species | Taxom |
| Scelionidae Haliday, 1839 | Scelionid wasps | 19 | Species | Taxom |
| Scenopinidae Burmeister, 1835 | Window Flies | 1 | Species | Taxom |
| Schizophoridae Ponomarenko, 1968 | | 3 | Species | Taxom |
| Schizopodidae (LeConte, 1859) | False Jewel Beetles | 1 | Species | Taxom |
| Schizopteridae Reuter, 1891 | Jumping ground bugs | 9 | Species | Taxom |
| Sciadoceridae (Schmitz, 1929) | | 1 | Species | Taxom |
| Scirtidae Fleming, 1821 | Marsh Beetle | 1 | Species | Taxom |
| Sclerogibbidae Ashmead, 1902 | Sclerogibbid wasp | 2 | Species | Taxom |
| Scolebythidae Evans, 1963 | Scolebythid wasps | 11 | Species | Taxom |
| Scoliidae Leach, 1815 | Mammoth wasps | 17 | Species | Taxom |
| Scraptiidae Mulsant, 1856 | Antlike leaf beetles | 2 | Species | Taxom |
| Scydmaenidae (Leach, 1815) | Ant-like stone beetles | 11 | Species | Taxom |
| Scytinopteridae Handlirsch, 1906 | | 2 | Species | Taxom |
| Septiventeridae Bai & al., 2013 | | 1 | Species | Taxom |
| Sepulcidae Rasnitsyn, 1968 | | 32 | Species | Taxom |
| Serendipidae Evenhuis, 1994 | | 3 | Species | Taxom |
| Serpentivenidae Shcherbakov, 1984 | | 2 | Species | Taxom |
| Serphitidae Brues, 1937 | | 18 | Species | Taxom |
| Sesiidae Boisduval, 1828 | Clear Wings | 1 | Species | Taxom |
| Shaposhnikoviidae Kononova, 1976 | | 7 | Species | Taxom |
| Sialidae Leach, 1815 | Alderflies | 2 | Species | Taxom |
| Siberioperlidae Sinitshenkova, 1983 | | 8 | Species | Taxom |
| Sierolomorphidae Krombein, 1951 | Sierolomorphid wasp | 1 | Species | Taxom |
| Silphidae Latreille, 1807 | Burying And Carrion Beetles | 1 | Species | Taxom |
| Silvanidae Kirby, 1837 | Flat bark beetles | 2 | Species | Taxom |
| Simuliidae Newman, 1834 | Black flies | 5 | Species | Taxom |
| Sinaphididae Zhang & al., 1989 | | 2 | Species | Taxom |
| Sinoalidae Wang & Szwedo, 2012 | | 1 | Species | Taxom |
| Sinosiricidae Hong You-Chong, 1975 | | 1 | Species | Taxom |
| Siricidae Billberg, 1820 | Horntail | 8 | Species | Taxom |
| Sisyridae Handlirsch, 1908 | Spongeflies | 3 | Species | Taxom |
| Smicripidae Horn, 1879 | Palmetto beetle | 1 | Species | Taxom |
| Socialidae Vrsansky, 2010 | | 1 | Species | Taxom |
| Sonidae Pritykina, 1986 | | 1 | Species | Taxom |
| Spathiopterygidae Engel & Orte..., 2013 | | 5 | Species | Taxom |
| Sphaeriusidae Erichson, 1845 | Minute Bog Beetles | 1 | Species | Taxom |
| Sphaeropsocidae Kolbe, 1883 | | 3 | Species | Taxom |
| Sphecidae Latreille, 1802 | Digger & Sand wasps | 7 | Species | Taxom |
| Sphindidae Jacquelin du..., 1860 | Cryptic slime mold beetle | 5 | Species | Taxom |
| Spongiphoridae Verhoeff, 1902 | Little Earwigs | 1 | Species | Taxom |
| Staphylinidae Lameere, 1900 | Rove beetles | 154 | Species | Taxom |
| Steingeliidae Morrison, 1927 | | 3 | Species | Taxom |
| Stephanidae Leach, 1815 | Crown wasp | 3 | Species | Taxom |
| Stigmaphronidae Kozlov, 1975 | Stigmaphronid wasps | 25 | Species | Taxom |
| Stolamissidae Liu & Engel, 2007 | | 1 | Species | Taxom |
| Stratiomyidae Latreille, 1802 | Soldier flies | 6 | Species | Taxom |
| Susumaniidae Gorochov, 1988 | | 5 | Species | Taxom |
| Synteliidae Lewis, 1882 | | 7 | Species | Taxom |
| Syrphidae Latreille, 1802 | Drone flies | 2 | Species | Taxom |
| Syspastoxyelidae Engel & Huang, 2016 | | 1 | Species | Taxom |
| Szelegiewicziidae Wegierek, 1989 | | 1 | Species | Taxom |
| Tabanidae Latreille, 1802 | Breeze flies | 9 | Species | Taxom |
| Tachinidae (Robineau-Des..., 1830) | Bristle Flies | 0 | Species | Taxom |
| Taeniopterygidae Klapálek, 1905 | Taeniopterygid winter stoneflies | 5 | Species | Taxom |
| Taimyrocoridae Popov, 2016 | | 1 | Species | Taxom |
| Tajmyraphididae Kononova, 1975 | | 4 | Species | Taxom |
| Taldycupedidae Rohdendorf, 1961 | | 3 | Species | Taxom |
| Tanyderidae Alexander, 1919 | Primitive crane flies | 3 | Species | Taxom |
| Tarachocelidae Mey, Wichard..., 2017 | | 1 | Species | Taxom |
| Taymyrelectronidae Botosaneanu ..., 1983 | | 1 | Species | Taxom |
| Tenebrionidae Latreille, 1802 | Darkling Beetle | 6 | Species | Taxom |
| Tenthredinidae Latreille, 1804 | Common sawflies | 3 | Species | Taxom |
| Termopsidae Grassé, 1949 | Damp wood termite | 2 | Species | Taxom |
| Tethepomyiidae Grimaldi & A..., 2008 | | 1 | Species | Taxom |
| Tetracampidae Förster, 1856 | Tetracampid wasps | 6 | Species | Taxom |
| Tetratomidae Billberg, 1820 | Polypore fungus beetle | 4 | Species | Taxom |
| Tetrigidae Rambur, 1838 | Groundhoppers | 2 | Species | Taxom |
| Tettigarctidae Distant, 1905 | Hairy cicada | 6 | Species | Taxom |
| Tettigoniidae Krauss, 1902 | Bush crickets | 2 | Species | Taxom |
| Therevidae Newman, 1834 | Stiletto flies | 1 | Species | Taxom |
| Thripidae Stevens, 1829 | Common thrips | 4 | Species | Taxom |
| Throscidae Laporte, 1840 | False metallic wood-boring beetles | 2 | Species | Taxom |
| Thynnidae Shuckard, 1841 | Thynnid Wasps | 1 | Species | Taxom |
| Tineidae Latreille, 1810 | & Allies | 1 | Species | Taxom |
| Tingidae Laporte, 1832 | Lace bug | 10 | Species | Taxom |
| Tiphiidae Leach, 1815 | Flower wasps | 1 | Species | Taxom |
| Tipulidae Latreille, 1802 | Crane Flies | 33 | Species | Taxom |
| Torirostratidae Yao, Cai, Sh..., 2014 | | 1 | Species | Taxom |
| Torrirostratidae Yao & al., 2014 | | 1 | Species | Taxom |
| Trachypachidae C. G. Thomson, 1857 | False ground beetle | 23 | Species | Taxom |
| Trichoceridae Rondani, 1841 | Winter Crane Flies | 9 | Species | Taxom |
| Trichogrammatidae Haliday, 1851 | Trichogrammatid wasps | 2 | Species | Taxom |
| Tridactylidae Saussure, 1874 | Pygmy mole cricket | 8 | Species | Taxom |
| Trigonalidae (Cresson, 1887) | Trigonalid sawflies | 4 | Species | Taxom |
| Trigonalyidae | | 1 | Species | Taxom |
| Trigonidiidae (Saussure, 1870) | And Ground Crickets | 1 | Species | Taxom |
| Trogidae (MacLeay, 1819) | Gnawer beetles | 11 | Species | Taxom |
| Trogiidae Enderlein, 1903 | Granary Booklice | 1 | Species | Taxom |
| Trogossitidae Latreille, 1802 | Bark gnawing beetle | 14 | Species | Taxom |
| Tryonicidae McKittrick &..., 1965 | | 2 | Species | Taxom |
| Ulyanidae (Zherikhin, 1993) | | 2 | Species | Taxom |
| Umenocoleidae Chen & Tian, 1973 | | 16 | Species | Taxom |
| Undopterigidae (Kozlov, 1988) | | 1 | Species | Taxom |
| Valeseguyidae Amorim & Gri..., 2006 | | 1 | Species | Taxom |
| Veliidae Amyot & Serv..., 1843 | Broad-shouldered bugs | 1 | Species | Taxom |
| Venicoridae Yao, Ren & Cai, 2012 | | 4 | Species | Taxom |
| Vermileonidae Williston, 1886 | Wormlion | 2 | Species | Taxom |
| Vespidae Leach, 1815 | And Allies | 13 | Species | Taxom |
| Vetanthocoridae Yao, Cai & Ren, 2006 | | 14 | Species | Taxom |
| Vitimiidae Sharov, 1968 | | 3 | Species | Taxom |
| Vitimotauliidae Sukatsheva, 1968 | | 25 | Species | Taxom |
| Volitorididae Hong, 1982 | | 1 | Species | Taxom |
| Weitschatidae Koteja, 2008 | | 1 | Species | Taxom |
| Xiphopteridae Sharov, 1968 | | 1 | Species | Taxom |
| Xyelidae Newman, 1835 | Sawfly | 33 | Species | Taxom |
| Xyelotomidae Rasnitsyn, 1968 | | 11 | Species | Taxom |
| Xyelydidae Rasnitsyn, 1968 | | 8 | Species | Taxom |
| Xylococcidae (Pergrande, 1898) | | 1 | Species | Taxom |
| Xylomyidae Verrall, 1901 | Wood soldier flies | 1 | Species | Taxom |
| Yuripopovinidae Azar & al., 2011 | | 1 | Species | Taxom |
| Zhangsolvidae Nagatomi & Yang, 1998 | | 6 | Species | Taxom |
| Zorotypidae Silvestri, 1913 | Angel insects | 5 | Species | Taxom |
| Zygaenidae Latreille, 1809 | Burnet Forester | 1 | Species | Taxom |
