| Acanaloniidae Amyot and Se..., 1843 | Acanalonid planthoppers | 1 | Species | Taxom |
| Acanthosomatidae Signoret, 1864 | Acanthosomatids | 1 | Species | Taxom |
| Achilidae Stål, 1866 | Achilid Planthoppers | 6 | Species | Taxom |
| Acrididae MacLeay, 1819 | Grasshoppers and locusts | 136 | Species | Taxom |
| Acroceridae Leach, 1815 | Hunch-back flies | 6 | Species | Taxom |
| Adelidae Bruand, 1851 | Adelid Moths | 11 | Species | Taxom |
| Ademosynidae Ponomarenko, 1968 | | 6 | Species | Taxom |
| Aenigmatidiidae Rohdendorf, 1961 | | 1 | Species | Taxom |
| Aerophasmidae Martynov, 1928 | | 5 | Species | Taxom |
| Aeschnidiidae Needham, 1903 | Small darner | 1 | Species | Taxom |
| Aeshnidae Rambur, 1842 | Darners | 11 | Species | Taxom |
| Agaonidae Walker, 1848 | Fig wasp | 1 | Species | Taxom |
| Agathemeridae Bradler, 2003 | | 1 | Species | Taxom |
| Agromyzidae Fallen, 1823 | Leaf miner flies | 23 | Species | Taxom |
| Agyrtidae Thomson, 1859 | Primitive carrion beetles | 8 | Species | Taxom |
| Alexarasniidae Gorochov, 2011 | | 1 | Species | Taxom |
| Aleyrodidae Westwood, 1840 | Whiteflies | 8 | Species | Taxom |
| Allopetaliidae Cockerell, 1913 | | 2 | Species | Taxom |
| Alucitidae Leach, 1815 | Many Plumed Moths | 2 | Species | Taxom |
| Alydidae Amyot & Serv..., 1843 | Bean bugs | 1 | Species | Taxom |
| Amorphoscelidae Stål, 1877 | | 1 | Species | Taxom |
| Amphipterygidae Selys, 1853 | | 1 | Species | Taxom |
| Ampulicidae Shuckard, 1840 | Ampulicid wasps | 5 | Species | Taxom |
| Anaxyelidae Martynov, 1925 | Anaxyelids | 3 | Species | Taxom |
| Andrenidae Webster, 1913 | Andrenid bees | 9 | Species | Taxom |
| Aneuretopsychidae Rasnitsyn & ..., 1990 | | 1 | Species | Taxom |
| Angarosphecidae Rasnitsyn, 1975 | | 1 | Species | Taxom |
| Anisopodidae Knab, 1912 | Window Midges | 6 | Species | Taxom |
| Antefungivoridae Rohdendorf, 1938 | | 5 | Species | Taxom |
| Anthicidae Latreille, 1819 | Ant beetles | 2 | Species | Taxom |
| Anthocoridae Fieber, 1837 | Flower bugs | 1 | Species | Taxom |
| Anthomyiidae Robineau-Des..., 1830 | Anthomyiid flies | 11 | Species | Taxom |
| Anthomyzidae Czerny, 1903 | Anthomyzid flies | 6 | Species | Taxom |
| Anthribidae Billberg, 1820 | Fungus Weevil | 5 | Species | Taxom |
| Apataniidae Wallengren, 1886 | Early Smoky Wing Sedges | 36 | Species | Taxom |
| Aphalaridae Löw, 1879 | | 49 | Species | Taxom |
| Aphelinidae Thomson, 1876 | Aphelinid wasps | 14 | Species | Taxom |
| Aphididae Latreille, 1802 | Aphids | 17 | Species | Taxom |
| Aphrophoridae Evans, 1946 | Froghoppers | 13 | Species | Taxom |
| Apidae Latreille, 1802 | Bumble bees | 59 | Species | Taxom |
| Aradidae Spinola, 1837 | Flat bug | 2 | Species | Taxom |
| Archaeocynipidae Rasnitsyn & ..., 1988 | | 3 | Species | Taxom |
| Archegocimicidae Handlirsch, 1906 | | 5 | Species | Taxom |
| Archeosmylidae Riek, 1953 | | 1 | Species | Taxom |
| Archescytinidae Tillyard, 1926 | | 11 | Species | Taxom |
| Archijassidae Becker-Migdi..., 1962 | | 4 | Species | Taxom |
| Archiprobnidae Sharov, 1961 | | 3 | Species | Taxom |
| Archipsyllidae Handlirsch, 1908 | | 2 | Species | Taxom |
| Archizelmiridae Rohdendorf, 1962 | | 1 | Species | Taxom |
| Archoglossopteridae Martynova, 1958 | | 1 | Species | Taxom |
| Arctiidae Leach, 1815 | Footman moths | 4 | Species | Taxom |
| Argentinoblattidae Martins-Neto..., 2005 | | 5 | Species | Taxom |
| Argidae Konow, 1890 | Argid flies | 5 | Species | Taxom |
| Ascalaphidae Rambur, 1842 | Owlflies | 2 | Species | Taxom |
| Asilidae Latreille, 1802 | Assassin flies | 122 | Species | Taxom |
| Asiocoleidae Rohdendorf, 1961 | | 1 | Species | Taxom |
| Athericidae Stuckenberg, 1973 | Athericid flies | 1 | Species | Taxom |
| Attelabidae Billberg, 1820 | Leaf Rolling Weevil | 117 | Species | Taxom |
| Aulacidae Shuckard, 1842 | Aulacid wasps | 6 | Species | Taxom |
| Autostichidae Le Marchand, 1947 | Autostichid Moths | 1 | Species | Taxom |
| Axymyiidae Rohdendorf, 1946 | Axymyiidae flies | 2 | Species | Taxom |
| Aykhalidae Sinitshenkova, 1994 | | 1 | Species | Taxom |
| Babinskaiidae Martins-Neto..., 1989 | | 1 | Species | Taxom |
| Baetidae Leach, 1815 | Mayflies | 6 | Species | Taxom |
| Baissodidae Benton, 1993 | | 5 | Species | Taxom |
| Baissoferidae Sukatsheva, 1968 | | 4 | Species | Taxom |
| Baissogryllidae Gorochov, 1985 | | 3 | Species | Taxom |
| Baissomantidae Gratshev & Z..., 1993 | | 2 | Species | Taxom |
| Baissopteridae Martynova, 1961 | | 10 | Species | Taxom |
| Bajsaphididae Homan, Zyla ..., 2015 | | 6 | Species | Taxom |
| Baleyopterygidae N.D. Siniche..., 1985 | | 7 | Species | Taxom |
| Belidae Schönherr, 1826 | Belid Beetle | 1 | Species | Taxom |
| Belostomatidae Leach, 1815 | Alligator ticks | 1 | Species | Taxom |
| Beraeidae Wallengren, 1891 | Small eastern caddisflies | 1 | Species | Taxom |
| Berothidae Handlirsch, 1906 | Beaded lacewing | 4 | Species | Taxom |
| Berytidae Fieber, 1851 | Stilt bug | 4 | Species | Taxom |
| Bethylidae Halliday, 1839 | Bethylid wasps | 1 | Species | Taxom |
| Bethylonymidae Rasnitsyn, 1975 | | 2 | Species | Taxom |
| Bibionidae Fleming, 1821 | Bibionid flies | 10 | Species | Taxom |
| Bintoniellidae Handlirsch, 1937 | | 1 | Species | Taxom |
| Bittacidae Handlirsch, 1906 | Hanging scorpionflies | 8 | Species | Taxom |
| Blaberidae Saussure, 1864 | Blaberids | 3 | Species | Taxom |
| Blattellidae (Karny, 1908) | German Cockroach | 5 | Species | Taxom |
| Blattidae Stephens, 1829 | American cockroaches | 4 | Species | Taxom |
| Blattogryllidae Rasnitsyn, 1976 | | 1 | Species | Taxom |
| Blattulidae Vishnyokova, 1982 | | 15 | Species | Taxom |
| Blissidae Stål, 1862 | Chinch Bugs | 3 | Species | Taxom |
| Boholdoyidae Kovalev, 1985 | | 2 | Species | Taxom |
| Bombycidae Latreille, 1802 | Lappet moths | 3 | Species | Taxom |
| Bombyliidae Latreille, 1802 | Bee Flies | 14 | Species | Taxom |
| Boreidae Latreille, 1816 | Snow fleas | 4 | Species | Taxom |
| Bostrichidae Latreille, 1802 | Auger beetles | 6 | Species | Taxom |
| Brachodidae Agenjo, 1966 | Little Bear Moths | 1 | Species | Taxom |
| Brachycentridae Ulmer, 1903 | Humpless Casemaker Caddisflies | 6 | Species | Taxom |
| Brachyceridae (Billberg, 1820) | Brachycerids | 1 | Species | Taxom |
| Brachypteridae (Erichson, 1845) | Short-winged Flower Beetles | 5 | Species | Taxom |
| Braconidae Latreille, 1829 | Braconid wasps | 17 | Species | Taxom |
| Brahmaeidae Swinhoe, 1892 | Brahmin Moths | 1 | Species | Taxom |
| Brassolidae (Boisduval, 1836) | | 1 | Species | Taxom |
| Brentidae Billberg, 1820 | Brenthidae | 2 | Species | Taxom |
| Brongniartiellidae Martynova, 1949 | | 2 | Species | Taxom |
| Buprestidae Leach, 1815 | Flat-headed wood-borers | 66 | Species | Taxom |
| Byrrhidae Latreille, 1804 | Moss beetles | 19 | Species | Taxom |
| Caenidae Newman, 1853 | Small square-gill mayflies | 3 | Species | Taxom |
| Calamoceratidae Ulmer, 1905 | | 2 | Species | Taxom |
| Caliscelidae Amyot & Serv..., 1843 | Piglet Bugs | 2 | Species | Taxom |
| Callidulidae Moore, 1877 | Old World Butterfly Moths | 3 | Species | Taxom |
| Callimokaltaniidae Zalessky, 1955 | | 1 | Species | Taxom |
| Calliphoridae Brauer & Ber..., 1889 | Blow flies | 11 | Species | Taxom |
| Calophyidae Vondracek, 1957 | | 4 | Species | Taxom |
| Calopterygidae Selys, 1850 | Broad-winged damselflies | 3 | Species | Taxom |
| Campterophlebiidae Handlirsch, 1920 | | 13 | Species | Taxom |
| Canadaphididae Richards, 1966 | | 2 | Species | Taxom |
| Cantharidae Imhoff, 1856 | Cantharids | 11 | Species | Taxom |
| Canthyloscelidae Enderlein, 1912 | | 1 | Species | Taxom |
| Capniidae Klapálek, 1905 | Capniid winter stoneflies | 54 | Species | Taxom |
| Carabidae Latreille, 1802 | Carabid beetles | 458 | Species | Taxom |
| Caridae Thompson, 1992 | | 4 | Species | Taxom |
| Carnidae Newman, 1834 | Bird flies | 1 | Species | Taxom |
| Carposinidae Walsingham, 1907 | Carposinid moths | 2 | Species | Taxom |
| Cecidomyiidae Newman, 1834 | Forest Midges | 93 | Species | Taxom |
| Cephidae Newman, 1834 | Cephids | 1 | Species | Taxom |
| Cerambycidae Latreille, 1802 | Long Horn beetles | 362 | Species | Taxom |
| Ceratophyllidae Dampf, 1908 | Bird Fleas | 52 | Species | Taxom |
| Ceratopogonidae Newman, 1834 | Biting midge | 77 | Species | Taxom |
| Cercopidae Leach, 1815 | Froghopper | 8 | Species | Taxom |
| Cerophytidae Latreille, 1834 | Cerophytid beetles | 2 | Species | Taxom |
| Cerylonidae Billberg, 1820 | Cerylid Kingfishers | 1 | Species | Taxom |
| Chaeteessidae Handlirsch, 1920 | | 2 | Species | Taxom |
| Chamaemyiidae Hendel, 1910 | Aphid flies | 6 | Species | Taxom |
| Chaoboridae Newman, 1834 | Phantom midge | 12 | Species | Taxom |
| Chironomidae Erichson, 1842 | Chironomids | 70 | Species | Taxom |
| Chloroperlidae Okamoto, 1912 | Green stoneflies | 26 | Species | Taxom |
| Chloropidae Schoenherr, 1840 | Chloropid flies | 54 | Species | Taxom |
| Choreutidae Stainton, 1854 | Choreuitid Moths | 9 | Species | Taxom |
| Chrysididae Latreille, 1802 | Chrysidid wasps | 2 | Species | Taxom |
| Chrysomelidae Latreille, 1802 | Casebearers | 67 | Species | Taxom |
| Chrysopidae Schneider, 1851 | And Green Lacewings | 7 | Species | Taxom |
| Cicadellidae Latreille, 1802 | Cicadellids | 738 | Species | Taxom |
| Cicadidae Westwood, 1840 | Cicada | 44 | Species | Taxom |
| Cicadomorphidae Handlirsch, 1906 | Giant cicadas | 2 | Species | Taxom |
| Ciidae Leach, 1819 | Minute tree fungus beetles | 12 | Species | Taxom |
| Cimbicidae Kirby, 1837 | Cimbicid sawflies | 3 | Species | Taxom |
| Cixiidae Spinola, 1839 | Cixid planthoppers | 51 | Species | Taxom |
| Cleridae Latreille, 1802 | Checkered Beetle | 2 | Species | Taxom |
| Clusiidae Schönherr, 1840 | Clusiid flies | 5 | Species | Taxom |
| Cnemidolestidae Handlirsch, 1906 | | 1 | Species | Taxom |
| Coccinellidae Latreille, 1807 | Coccinelles | 52 | Species | Taxom |
| Coenagrionidae Kirby, 1890 | Narrow-winged damselflies | 16 | Species | Taxom |
| Coleophoridae Hübner, 1825 | Case moths | 29 | Species | Taxom |
| Coleoscytidae Martynov, 1935 | | 1 | Species | Taxom |
| Colletidae Lepeletier, 1841 | Colletid bees | 31 | Species | Taxom |
| Conopidae Latreille, 1802 | Thick-headed Flies | 4 | Species | Taxom |
| Coptoclavidae Ponomarenko, 1961 | Extinct family | 8 | Species | Taxom |
| Corduliidae Selys-Longch..., 1850 | Baskettails | 8 | Species | Taxom |
| Coreidae Leach, 1815 | Broad-headed bugs | 11 | Species | Taxom |
| Corixidae Leach, 1815 | Lesser Water-Boatman | 10 | Species | Taxom |
| Corydalidae Burmeister, 1839 | Dobsonflies | 2 | Species | Taxom |
| Corydiidae de Saussure, 1864 | Sand cockroaches | 2 | Species | Taxom |
| Corylophidae LeConte, 1852 | Hooded beetles | 1 | Species | Taxom |
| Cosmopterigidae Heinemann & ..., 1876 | Cosmet Moths | 31 | Species | Taxom |
| Cossidae Leach, 1815 | Borers | 11 | Species | Taxom |
| Crabronidae Latreille, 1802 | Bee Wolves | 4 | Species | Taxom |
| Crambidae Latreille, 1810 | Crambid Snout Moths | 131 | Species | Taxom |
| Cretomantidae Gratshev & Z..., 1994 | | 1 | Species | Taxom |
| Cryptophagidae Kirby, 1937 | Mould beetles | 5 | Species | Taxom |
| Ctenophthalmidae Rothschild, 1915 | | 27 | Species | Taxom |
| Cucujidae Latreille, 1802 | Flat bark beetles | 2 | Species | Taxom |
| Culicidae Meigen, 1818 | Mosquito | 11 | Species | Taxom |
| Cupedidae Laporte, 1836 | Cupedids | 6 | Species | Taxom |
| Curculionidae Latreille, 1802 | Ambrosia beetles | 948 | Species | Taxom |
| Cycloristidae Martynova, 1958 | | 2 | Species | Taxom |
| Cyclothemistidae Bechly, 1996 | | 1 | Species | Taxom |
| Cydnidae Billberg, 1820 | Burrower bugs | 1 | Species | Taxom |
| Cylindrotomidae (Mulsant, 1842) | Cylindrotomid Crane Flies | 1 | Species | Taxom |
| Cymidae Baerensprung, 1860 | | 1 | Species | Taxom |
| Cynipidae Latreille, 1802 | Cynipid gall wasps | 3 | Species | Taxom |
| Dascillidae Guérin-Ménev..., 1843 | Orchid beetles | 1 | Species | Taxom |
| Dasyleptidae Sharov, 1957 | | 1 | Species | Taxom |
| Decliniidae Nikitsky, La..., 1994 | Declinia relicta | 1 | Species | Taxom |
| Delphacidae Leach, 1815 | Delphacid planthoppers | 137 | Species | Taxom |
| Derbidae Spinola, 1839 | Derbid planthoppers | 6 | Species | Taxom |
| Dermestidae Hope, 1840 | Carpet beetles | 35 | Species | Taxom |
| Derodontidae LeConte, 1861 | Tooth-neck fungus beetles | 3 | Species | Taxom |
| Deuterophlebiidae Edwards, 1922 | Mountain midges | 1 | Species | Taxom |
| Diapriidae Latreille, 1796 | Diapriid wasps | 7 | Species | Taxom |
| Diaspididae Maskell, 1878 | Armored scale insects | 2 | Species | Taxom |
| Diastatidae Hendel, 1917 | Bog flies | 5 | Species | Taxom |
| Dictyoneuridae Handlirsch, 1906 | | 1 | Species | Taxom |
| Dictyopharidae Spinola, 1839 | Dictyopharid Planthoppers | 5 | Species | Taxom |
| Dinopanorpidae Carpenter, 1972 | | 1 | Species | Taxom |
| Diopsidae Billberg, 1820 | Stalk-eyed flies | 1 | Species | Taxom |
| Diplatyidae (Verhoeff, 1902) | | 1 | Species | Taxom |
| Diprionidae Rohwer, 1911 | Conifer sawflies | 1 | Species | Taxom |
| Dipseudopsidae Ulmer, 1904 | | 1 | Species | Taxom |
| Dixidae Schiner, 1868 | Dixid Midges | 2 | Species | Taxom |
| Dolichopodidae Latreille, 1809 | Long legged flies | 156 | Species | Taxom |
| Douglasiidae Heinemann & ..., 1876 | Douglas Moths | 1 | Species | Taxom |
| Drepanidae Meyrick, 1895 | Drepanids | 16 | Species | Taxom |
| Drosophilidae Rondani, 1856 | Fruit flies | 13 | Species | Taxom |
| Dryinidae Haliday, 1840 | Dryinid wasps | 11 | Species | Taxom |
| Dryomyzidae Schiner, 1862 | Dryomyzid flies | 2 | Species | Taxom |
| Dunstaniidae Tillyard, 1916 | | 2 | Species | Taxom |
| Dysoneuridae Sukatsheva, 1968 | | 3 | Species | Taxom |
| Dytiscidae Leach, 1815 | Diving beetles | 25 | Species | Taxom |
| Ecnomidae Ulmer, 1903 | | 3 | Species | Taxom |
| Ectobiidae (Brunner von ..., 1865) | Wood cockroaches | 2 | Species | Taxom |
| Elachistidae Bruand, 1851 | Elachistid moths | 44 | Species | Taxom |
| Elateridae Leach, 1815 | Click Beetle | 69 | Species | Taxom |
| Elcanidae Handlirsch, 1906 | | 5 | Species | Taxom |
| Elektraphididae Steffan, 1968 | | 3 | Species | Taxom |
| Elliidae Krzeminska, ..., 1993 | | 1 | Species | Taxom |
| Ellinaphididae Kania & Wegi..., 2008 | | 20 | Species | Taxom |
| Elmidae Curtis, 1830 | Drive beetles | 2 | Species | Taxom |
| Empididae Latreille, 1809 | Balloon flies | 63 | Species | Taxom |
| Encyrtidae Walker, 1837 | Encyrtid wasps | 125 | Species | Taxom |
| Endomychidae Leach, 1815 | False Ladybirds | 4 | Species | Taxom |
| Endromidae Boisduval, 1828 | Glory Moths | 1 | Species | Taxom |
| Eoichneumonidae (Jell & Duncan, 1986) | | 12 | Species | Taxom |
| Eolepidopterigidae Rasnitsyn, 1983 | | 2 | Species | Taxom |
| Eomeropidae Cockerell, 1909 | | 2 | Species | Taxom |
| Epeoromimidae Tshernova, 1969 | | 1 | Species | Taxom |
| Epermeniidae Spuler, 1910 | Epermeniid moths | 17 | Species | Taxom |
| Ephemerellidae (Klapálek, 1909) | Blue-Winged Olive Ephemerellidae | 1 | Species | Taxom |
| Ephemeridae Leach, 1817 | Burrowing mayflies | 1 | Species | Taxom |
| Ephialtitidae Handlirsch, 1906 | | 1 | Species | Taxom |
| Ephydridae Zetterstedt, 1837 | Brine flies | 24 | Species | Taxom |
| Episactidae Burr, 1899 | | 1 | Species | Taxom |
| Erebidae Leach, 1815 | Erebid Moths | 362 | Species | Taxom |
| Eremochaetidae Ussatchov, 1968 | | 5 | Species | Taxom |
| Eriocraniidae Rebel, 1901 | Eriocraniid moths | 2 | Species | Taxom |
| Erotylidae Latreille, 1802 | Pleasing Fungus Beetle | 3 | Species | Taxom |
| Eucinetidae Lacordaire, 1857 | Plate-thigh beetle | 1 | Species | Taxom |
| Eucnemidae Eschscholtz, 1829 | Click Beetles | 2 | Species | Taxom |
| Eulophidae Westwood, 1829 | Eulophid wasps | 46 | Species | Taxom |
| Eupelmidae Walker, 1833 | Eupelmid wasps | 2 | Species | Taxom |
| Euryptilonidae Martynov, 1940 | | 1 | Species | Taxom |
| Eurytomidae Walker, 1832 | Eurytomid wasps | 13 | Species | Taxom |
| Figitidae Thomson, 1862 | Figitid wasps | 2 | Species | Taxom |
| Flatidae Spinola, 1839 | Flatid planthoppers | 3 | Species | Taxom |
| Forficulidae Stephens, 1829 | Common Earwig | 2 | Species | Taxom |
| Formicidae Latreille, 1809 | Ants | 200 | Species | Taxom |
| Fulgoridae Latreille, 1807 | Fulgorid Planthopper | 1 | Species | Taxom |
| Geinitziidae Handlirsch, 1906 | | 1 | Species | Taxom |
| Gelechiidae Stainton, 1854 | Gelechiid moths | 102 | Species | Taxom |
| Geocoridae Baerensprung, 1860 | Big-eyed Bugs | 3 | Species | Taxom |
| Geometridae Leach, 1815 | Cankerworm moths | 419 | Species | Taxom |
| Geotrupidae Latreille, 1802 | Dor beetles | 15 | Species | Taxom |
| Gerridae Leach, 1815 | Jesus bugs | 2 | Species | Taxom |
| Glaphyridae MacLeay, 1819 | Bumble bee scarab beetle | 7 | Species | Taxom |
| Glaresidae Kolbe, 1905 | Enigmatic scarab beetle | 6 | Species | Taxom |
| Glossosomatidae Wallengren, 1891 | Little Black Caddisflies | 13 | Species | Taxom |
| Glyphipterigidae Stainton, 1854 | Glyphipterigid moths | 11 | Species | Taxom |
| Goeridae Ulmer, 1903 | | 5 | Species | Taxom |
| Gomphidae Rambur, 1842 | Club-tailed dragonflies | 11 | Species | Taxom |
| Gracillariidae Stainton, 1854 | Blotch leaf miner moths | 154 | Species | Taxom |
| Gripopterygidae Enderlein, 1909 | | 1 | Species | Taxom |
| Gryllidae Bolivar, 1878 | Crickets | 5 | Species | Taxom |
| Grylloblattidae E. M. Walker, 1914 | Grylloblattids | 4 | Species | Taxom |
| Gryllotalpidae Saussure, 1870 | Mole cricket | 2 | Species | Taxom |
| Gyrinidae Latreille, 1802 | Whirligig beetle | 6 | Species | Taxom |
| Haglidae Handlirsch, 1906 | Hump-winged cricket | 5 | Species | Taxom |
| Haglotettigoniidae Gorochov, 1988 | | 1 | Species | Taxom |
| Halictidae Thomson, 1869 | Flower bees | 28 | Species | Taxom |
| Haliplidae Aubé, 1836 | Crawling Water Beetle | 1 | Species | Taxom |
| Hebridae Amyot and Se..., 1843 | Velvet water bug | 1 | Species | Taxom |
| Heleomyzidae (Westwood, 1840) | Heleomyzid flies | 18 | Species | Taxom |
| Heliozelidae Heinemann & ..., 1876 | Leaf miners | 1 | Species | Taxom |
| Heloridae Förster, 1856 | Helorid wasps | 3 | Species | Taxom |
| Hemerobiidae Latreille, 1802 | Brown Lacewing | 1 | Species | Taxom |
| Hemeroscopidae Pritykina, 1977 | | 1 | Species | Taxom |
| Hemiphlebiidae Fraser, 1960 | Ancient greenling | 1 | Species | Taxom |
| Hepialidae Stephens, 1829 | Ghost Moths | 9 | Species | Taxom |
| Heptageniidae Needham, 1901 | Flat-Bodied Up-Wings Heptageniidae | 4 | Species | Taxom |
| Hesperiidae Latreille, 1809 | Skipper | 73 | Species | Taxom |
| Hesperinidae Hendel, 1928 | | 1 | Species | Taxom |
| Heteroceridae MacLeay, 1825 | Mud beetles | 4 | Species | Taxom |
| Hexagenitidae Lameere, 1917 | | 4 | Species | Taxom |
| Hippoboscidae Samouelle, 1819 | Keds | 4 | Species | Taxom |
| Histeridae Gyllenhal, 1808 | Clown beetle | 62 | Species | Taxom |
| Homotomidae Heslop-Harrison, 1958 | | 1 | Species | Taxom |
| Hoplopleuridae Ewing, 1929 | | 1 | Species | Taxom |
| Hoploridiidae Popov & Shch..., 1991 | | 1 | Species | Taxom |
| Hybosoridae Erichson, 1847 | Pill scarab beetles | 7 | Species | Taxom |
| Hybotidae Meigen, 1820 | Dance flies | 13 | Species | Taxom |
| Hydraenidae Mulsant, 1844 | Cascade Beetles | 22 | Species | Taxom |
| Hydrobiosidae Ulmer, 1905 | | 15 | Species | Taxom |
| Hydrochidae (Thomson, 1859) | | 1 | Species | Taxom |
| Hydrophilidae Latreille, 1802 | Silver Water Beetles | 103 | Species | Taxom |
| Hydropsychidae Curtis, 1835 | Net Spinning caddisflies | 24 | Species | Taxom |
| Hydroptilidae Stephens, 1836 | Micro caddisflies | 61 | Species | Taxom |
| Hylicellidae Evans, 1956 | | 2 | Species | Taxom |
| Hymenopodidae Giglio-Tos, 1919 | Flower mimic mantises | 3 | Species | Taxom |
| Hypoperlidae Martynov, 1928 | | 0 | Species | Taxom |
| Hystrichopsyllidae Tiraboschi, 1904 | Insectivore fleas | 1 | Species | Taxom |
| Ichneumonidae Latreille, 1802 | Ichneumon flies | 45 | Species | Taxom |
| Ichneumonomimidae Rasnitsyn, 1975 | | 1 | Species | Taxom |
| Ideliidae (Zalessky, 1929) | | 4 | Species | Taxom |
| Incurvariidae Spuler, 1898 | Fairy moths | 2 | Species | Taxom |
| Ingruidae Becker-Migdi..., 1960 | | 3 | Species | Taxom |
| Ipsviciidae Tillyard, 1919 | | 1 | Species | Taxom |
| Ironomyiidae McAlpine & M..., 1966 | Ironic flies | 7 | Species | Taxom |
| Ischnopsyllidae Wahlgren, 1907 | Bat fleas | 7 | Species | Taxom |
| Isophlebiidae Handlirsch, 1908 | | 4 | Species | Taxom |
| Issidae Spinola, 1839 | Issid planthoppers | 2 | Species | Taxom |
| Ithyceridae (Schönherr, 1826) | New York weevil | 1 | Species | Taxom |
| Jurinidae Zalessky, 1929 | | 13 | Species | Taxom |
| Jurodidae Ponomarenko, 1985 | Jurodids | 1 | Species | Taxom |
| Kaltanelmoidae Rohdendorf, 1961 | | 1 | Species | Taxom |
| Kaltanidae Martynova, 1958 | | 28 | Species | Taxom |
| Kaltanoneuridae Rohdendorf, 1961 | | 1 | Species | Taxom |
| Karabasiidae Popov, 1985 | | 4 | Species | Taxom |
| Kateretidae Kirkby, 1837 | Pollen Beetles | 2 | Species | Taxom |
| Kennedyidae Tillyard, 1925 | | 1 | Species | Taxom |
| Keroplatidae Rondani, 1856 | Fungus gnats | 16 | Species | Taxom |
| Khatangaphididae Heie, 2000 | | 2 | Species | Taxom |
| Kinnaridae Muir, 1925 | Kinnarid Planthoppers | 1 | Species | Taxom |
| Kortshakoliidae Storozhenko, 1997 | | 2 | Species | Taxom |
| Lachesillidae Pearman, 1936 | Fateful Barklice | 1 | Species | Taxom |
| Lampyridae Latreille, 1817 | Fireflies | 1 | Species | Taxom |
| Lasiocampidae Harris, 1841 | Eggar Moths | 21 | Species | Taxom |
| Lasiosynidae Kirejtshuk, ..., 2010 | | 12 | Species | Taxom |
| Latridiidae Erichson, 1842 | Minute brown scavenger beetle | 1 | Species | Taxom |
| Lauxaniidae Macquart, 1835 | Beach flies | 5 | Species | Taxom |
| Leiodidae Fleming, 1821 | Round fungus beetles | 102 | Species | Taxom |
| Lemoniidae Hampson, 1918 | Autumn Silkworm Moths | 1 | Species | Taxom |
| Lepidostomatidae Ulmer, 1903 | Bizarre Caddisflies | 7 | Species | Taxom |
| Lepismatidae Latreille, 1802 | Lepismatid Fishmoths | 1 | Species | Taxom |
| Leptoceridae Leach, 1815 | Long Horned caddisflies | 65 | Species | Taxom |
| Leptophlebiidae Banks, 1900 | Leptophlebiids | 13 | Species | Taxom |
| Leptopsyllidae Rothschild &..., 1915 | Bird fleas | 22 | Species | Taxom |
| Lestidae Calvert, 1901 | Spread-winged damselflies | 8 | Species | Taxom |
| Leucospidae Fabricius, 1775 | Leucospid wasps | 1 | Species | Taxom |
| Leuctridae Klapálek, 1905 | Needle Or Willow Stoneflies | 18 | Species | Taxom |
| Liadytidae Ponomarenko, 1977 | | 6 | Species | Taxom |
| Liassophilidae Tillyard, 1933 | | 2 | Species | Taxom |
| Libellulidae Rambur, 1842 | Chasers | 26 | Species | Taxom |
| Limacodidae Duponchel, 1845 | Cup moths | 11 | Species | Taxom |
| Limnephilidae Kolenati, 1848 | Northern caddisflies | 178 | Species | Taxom |
| Limoniidae (Speiser, 1909) | Craneflies | 89 | Species | Taxom |
| Liomopteridae Sellards, 1909 | | 16 | Species | Taxom |
| Lithoscarabaeidae Nikolajev, 1992 | | 2 | Species | Taxom |
| Liupanshaniidae Bechly & al, 2001 | | 1 | Species | Taxom |
| Liviidae Low, 1879 | | 13 | Species | Taxom |
| Locustavidae Sharov, 1968 | | 1 | Species | Taxom |
| Locustopsidae Handlirsch, 1906 | | 4 | Species | Taxom |
| Lonchaeidae Loew, 1861 | Lance Flies | 2 | Species | Taxom |
| Lonchopteridae Curtis, 1839 | Pointed-wing flies | 4 | Species | Taxom |
| Lophioneuridae Tillyard, 1921 | | 8 | Species | Taxom |
| Lucanidae Latreille, 1804 | Stag Beetle | 29 | Species | Taxom |
| Lycaenidae Leach, 1815 | Blue butterflies | 168 | Species | Taxom |
| Lycidae Laporte, 1836 | Lycid beetles | 3 | Species | Taxom |
| Lygaeidae Schilling, 1829 | Chinch bugs | 18 | Species | Taxom |
| Lymexylidae Fleming, 1821 | Ship-timber beetle | 3 | Species | Taxom |
| Lyonetiidae Stainton, 1854 | Lyonet Moths | 19 | Species | Taxom |
| Machilidae Grassi, 1888 | Jumping bristletail | 2 | Species | Taxom |
| Maimetshidae (Rasnitsyn, 1975) | | 1 | Species | Taxom |
| Mantidae Burmeister, 1838 | Mantids | 3 | Species | Taxom |
| Mantispidae Leach, 1815 | Mantid lacewings | 1 | Species | Taxom |
| Mastotermitidae Desneux, 1904 | | 1 | Species | Taxom |
| Matsucoccidae Morrison, 1927 | Pine bark scales | 2 | Species | Taxom |
| Meenoplidae Fieber, 1872 | | 1 | Species | Taxom |
| Megachilidae Schenk, 1860 | And Resin Bees | 53 | Species | Taxom |
| Megakhosaridae Sharov, 1961 | | 1 | Species | Taxom |
| Megalodontesidae Konow, 1897 | | 1 | Species | Taxom |
| Megalopodidae Latreille, 1802 | Megalopodid Leaf Beetles | 4 | Species | Taxom |
| Megalyridae Schletterer, 1889 | Megalyrid wasps | 3 | Species | Taxom |
| Megapodagrionidae Tillyard, 1917 | Flatwing | 0 | Species | Taxom |
| Melandryidae Leach, 1815 | False Darkling Beetle | 6 | Species | Taxom |
| Meloidae Gyllenhal, 1810 | Blister Beetle | 16 | Species | Taxom |
| Melolonthidae (Leach, 1817) | Chafers | 5 | Species | Taxom |
| Melyridae Leach, 1815 | Malachite Beetles | 3 | Species | Taxom |
| Membracidae Germar, 1821 | Horned Treehoppers | 5 | Species | Taxom |
| Meropeidae Espen-Petersen, 1921 | Earwig-flies | 1 | Species | Taxom |
| Mesoblattinidae Handlirsch, 1906 | | 11 | Species | Taxom |
| Mesochrysopidae Handlirsch, 1906 | | 7 | Species | Taxom |
| Mesoedischiidae Gorochov, 1987 | | 1 | Species | Taxom |
| Mesoleuctridae Sinitshenkova, 1982 | | 4 | Species | Taxom |
| Mesopentacoridae Popov, 1968 | | 1 | Species | Taxom |
| Mesopsychidae Tillyard, 1917 | | 13 | Species | Taxom |
| Mesoraphidiidae Martynov, 1925 | | 9 | Species | Taxom |
| Mesosciophilidae Rohdendorf, 1946 | | 5 | Species | Taxom |
| Mesoserphidae Kozlov, 1970 | | 2 | Species | Taxom |
| Mesoveliidae Douglas and ..., 1867 | Pond treaders | 1 | Species | Taxom |
| Micromalthidae Barber, 1913 | Micromalthid beetles | 1 | Species | Taxom |
| Micronectidae Jaczewski, 1924 | Pygmy water boatmen | 1 | Species | Taxom |
| Micropezidae Illiger, 1798 | Stilt Flies | 4 | Species | Taxom |
| Micropterigidae Herrich-Schä..., 1855 | Mandibulate Archaic Moths | 5 | Species | Taxom |
| Microptysmatidae Martynova, 1958 | | 1 | Species | Taxom |
| Mimarachnidae Shcherbakov, 2007 | | 2 | Species | Taxom |
| Miridae Hahn, 1831 | Capsid bugs | 328 | Species | Taxom |
| Mirinidae (Kozlov, 1985) | | 1 | Species | Taxom |
| Mogoplistidae Saussure, 1877 | Scaly cricket | 1 | Species | Taxom |
| Molannidae Wallengren, 1891 | Hood Casemaker Caddisflies | 1 | Species | Taxom |
| Monotomidae Laporte, 1840 | Minute Clubbed Beetles | 2 | Species | Taxom |
| Mordellidae Latreille, 1802 | Pintail beetles | 3 | Species | Taxom |
| Muscidae Latreille, 1802 | Face flies | 93 | Species | Taxom |
| Mutillidae André, 1907 | Cow ant | 0 | Species | Taxom |
| Mycetophilidae Newman, 1834 | Fungus Gnat | 191 | Species | Taxom |
| Mymaridae Haliday, 1833 | Fairflies | 15 | Species | Taxom |
| Mymarommatidae Debauche, 1948 | False fairy wasp | 1 | Species | Taxom |
| Myrmecolacidae Saunders, 1872 | | 1 | Species | Taxom |
| Myrmecophilidae Saussure, 1874 | Ant cricket | 1 | Species | Taxom |
| Mythicomyiidae Melander, 1902 | Micro Bee Flies | 1 | Species | Taxom |
| Naibiidae Shcherbakov, 2007 | | 2 | Species | Taxom |
| Nannochoristidae Tillyard, 1917 | | 1 | Species | Taxom |
| Naucoridae Leach, 1815 | Creeping water bug | 2 | Species | Taxom |
| Necrotauliidae Handlirsch, 1906 | | 7 | Species | Taxom |
| Nemestrinidae Macquart, 1834 | Tangle-veined flies | 2 | Species | Taxom |
| Nemonychidae Bedel, 1882 | Nemonychid weevils | 12 | Species | Taxom |
| Nemouridae Newman, 1853 | Brown stoneflies | 48 | Species | Taxom |
| Nepidae Latreille, 1802 | Back-swimmer Water-boatmen | 1 | Species | Taxom |
| Nepticulidae Stainton, 1854 | Leaf miners | 16 | Species | Taxom |
| Nitidulidae Latreille, 1802 | Nitidules | 15 | Species | Taxom |
| Noctuidae Latreille, 1809 | Armyworms | 563 | Species | Taxom |
| Nolidae Hampson, 1894 | Hatted Caterpillars | 13 | Species | Taxom |
| Notodontidae Stephens, 1829 | Bag Shelter Moths | 67 | Species | Taxom |
| Notonectidae Latreille, 1802 | Back Swimmers | 3 | Species | Taxom |
| Nymphalidae Rafinesque, 1815 | Admirals | 332 | Species | Taxom |
| Nymphidae Rambur, 1842 | Split-footed lacewing | 6 | Species | Taxom |
| Nymphomyiidae Tokunaga, 1932 | Nymphomyiid crane flies | 2 | Species | Taxom |
| Ochodaeidae Mulsant & Rey, 1870 | Sand-loving scarab beetle | 1 | Species | Taxom |
| Odiniidae Hendel, 1920 | Odiniid flies | 1 | Species | Taxom |
| Odontoceridae Wallengren, 1891 | Mortarjoint Casemaker Caddisflies | 1 | Species | Taxom |
| Oecanthidae (Blanchard, 1845) | Tree cricket | 1 | Species | Taxom |
| Oecanthoperlidae Storozhenko, 1988 | | 1 | Species | Taxom |
| Oecophoridae Bruand, 1851 | Concealer Moths | 5 | Species | Taxom |
| Oedemeridae Latreille, 1810 | False Blister Beetle | 7 | Species | Taxom |
| Oestridae Leach, 1815 | Bot flies | 10 | Species | Taxom |
| Oligoneuriidae Ulmer, 1914 | Brushleg Mayflies | 2 | Species | Taxom |
| Ommatidae Sharp & Muir, 1912 | | 15 | Species | Taxom |
| Ormyridae Förster, 1856 | Armyrids | 1 | Species | Taxom |
| Orthophlebiidae Handlirsch, 1906 | | 12 | Species | Taxom |
| Orussidae Newman, 1834 | Orussid wasps | 0 | Species | Taxom |
| Osmylidae Leach, 1815 | Giant lacewings | 7 | Species | Taxom |
| Otitidae (Macquart, 1835) | Picture-winged flies | 8 | Species | Taxom |
| Oviparosiphidae Shaposhnikov, 1979 | | 7 | Species | Taxom |
| Oxycarenidae Stål, 1862 | | 4 | Species | Taxom |
| Pachygronthidae Stål, 1865 | | 1 | Species | Taxom |
| Pachymeridiidae Handlirsch, 1906 | | 14 | Species | Taxom |
| Pachyneuridae Schiner, 1864 | Dark-winged fungus gnats | 1 | Species | Taxom |
| Palaemerobiidae Martynov, 1928 | | 1 | Species | Taxom |
| Palaeoaphididae Richards, 1966 | | 9 | Species | Taxom |
| Palaeoleontidae Martins-Neto, 1992 | Ant lion | 2 | Species | Taxom |
| Palaeomanteidae Handlirsch, 1906 | | 1 | Species | Taxom |
| Palaeonemouridae N.D. Siniche..., 1987 | | 5 | Species | Taxom |
| Palaeontinidae Handlirsch, 1906 | Giant cicadas | 7 | Species | Taxom |
| Palaeoperlidae Sharov, 1961 | | 2 | Species | Taxom |
| Palingeniidae Albarda, 1888 | Riverbed Burrower Mayflies | 2 | Species | Taxom |
| Pamphagidae Burmeister, 1840 | Toad grasshopper | 3 | Species | Taxom |
| Pamphiliidae Cameron, 1890 | Leaf-rolling sawflies | 4 | Species | Taxom |
| Panorpidae Linnaeus, 1758 | Common scorpionflies | 8 | Species | Taxom |
| Papilionidae Latreille, 1802 | Apollos | 41 | Species | Taxom |
| Paraxymyiidae Rohdendorf, 1946 | Paxylommatid wasps | 1 | Species | Taxom |
| Passalidae Leach, 1815 | Bess beetle | 3 | Species | Taxom |
| Pediciidae Osten Sacken, 1860 | Hairy-Eyed Crane Flies | 14 | Species | Taxom |
| Pelecinidae Haliday, 1839 | Ancestral And Modern Pelecinid Wasps | 10 | Species | Taxom |
| Pentatomidae Leach, 1815 | Lesser shield bugs | 20 | Species | Taxom |
| Pereboriidae Zalessky, 1930 | | 3 | Species | Taxom |
| Perforissidae Shcherbakov, 2007 | | 2 | Species | Taxom |
| Perilampidae Latreille, 1809 | Perilampid waps | 2 | Species | Taxom |
| Periscelididae Oldenberg, 1914 | Periscelidid Flies | 0 | Species | Taxom |
| Perissommatidae Colless, 1962 | | 2 | Species | Taxom |
| Perlariopseidae N.D. Siniche..., 1985 | | 5 | Species | Taxom |
| Perlidae (Latreille, 1802) | Common stoneflies | 21 | Species | Taxom |
| Perlodidae Klapálek, 1912 | Perlodid stoneflies | 40 | Species | Taxom |
| Permaleurodidae Becker-Migdi..., 1959 | | 1 | Species | Taxom |
| Permaphidopseidae Becker-Migdi..., 1960 | | 1 | Species | Taxom |
| Permelytridae Tillyard, 1931 | | 1 | Species | Taxom |
| Permithonidae Tillyard, 1922 | | 7 | Species | Taxom |
| Permochoristidae Tillyard, 1918 | | 54 | Species | Taxom |
| Permocupedidae Martynov, 1933 | | 14 | Species | Taxom |
| Permopectinidae Aristov, 2005 | | 1 | Species | Taxom |
| Permosialidae Martynov, 1928 | | 3 | Species | Taxom |
| Permosynidae Tillyard, 1924 | | 2 | Species | Taxom |
| Permotipulidae Tillyard, 1929 | | 2 | Species | Taxom |
| Petaluridae Needham, 1903 | Grayback dragonfly | 1 | Species | Taxom |
| Phaeomyiidae (Verbeke, 1950) | Marsh flies | 1 | Species | Taxom |
| Phalangopsidae (Chopard, 1949) | Spider cricket | 1 | Species | Taxom |
| Phasmatidae Roberts, 1944 | Walking sticks | 2 | Species | Taxom |
| Phasmomimidae Sharov, 1968 | | 17 | Species | Taxom |
| Philopotamidae Stephens, 1829 | Finger Net caddisflies | 14 | Species | Taxom |
| Philopteridae Burmeister, 1830 | | 2 | Species | Taxom |
| Phlaeothripidae Uzel, 1895 | Thrips | 2 | Species | Taxom |
| Phoridae Curtis, 1833 | Coffin Flies | 22 | Species | Taxom |
| Phryganeidae (Leach, 1815) | Giant casemaker | 18 | Species | Taxom |
| Phryganopsychidae Wiggins, 1959 | | 1 | Species | Taxom |
| Phyloblattidae Schneider, 1983 | | 1 | Species | Taxom |
| Pieridae Duponchel, 1835 | Brimstones | 53 | Species | Taxom |
| Pipunculidae Walker, 1834 | Big headed flies | 2 | Species | Taxom |
| Plataspididae (Dallas, 1851) | | 1 | Species | Taxom |
| Platycnemididae Tillyard, 1917 | White-legged damselflies | 1 | Species | Taxom |
| Platygastridae Haliday, 1833 | Platygastrid wasps | 1 | Species | Taxom |
| Platyperlidae Sinitshenkova, 1982 | | 4 | Species | Taxom |
| Platypezidae Fallen, 1815 | Flat footed flies | 9 | Species | Taxom |
| Platystictidae Laidlaw, 1924 | Forest Damselflies | 1 | Species | Taxom |
| Pleciofungivoridae Rohdendorf, 1946 | | 13 | Species | Taxom |
| Pleciomimidae Rodendorf, 1949 | | 6 | Species | Taxom |
| Pleocomidae LeConte, 1861 | Rain beetle | 1 | Species | Taxom |
| Plutellidae Guenée, 1845 | Diamond-back moths | 17 | Species | Taxom |
| Polycentropodidae Ulmer, 1903 | Tube Maker Caddisflies | 10 | Species | Taxom |
| Polyplacidae Fahrenholz, 1912 | Spiny rat lice | 1 | Species | Taxom |
| Pompilidae Latreille, 1805 | Pompilid wasps | 9 | Species | Taxom |
| Poroblattinidae Handlirsch, 1906 | | 2 | Species | Taxom |
| Praeaulacidae Rasnitsyn, 1972 | | 8 | Species | Taxom |
| Praeichneumonidae Rasnitsyn, 1983 | | 4 | Species | Taxom |
| Praesiricidae Rasnitsyn, 1968 | | 2 | Species | Taxom |
| Procercopidae Handlirsch, 1906 | | 1 | Species | Taxom |
| Proctorenyxidae Lelej & Kozlov, 1999 | | 1 | Species | Taxom |
| Prodoxidae Riley, 1881 | Yucca Moths | 4 | Species | Taxom |
| Progonocimicidae Handlirsch, 1906 | | 8 | Species | Taxom |
| Prohemerobiidae Handlirsch, 1906 | | 3 | Species | Taxom |
| Prophalangopsidae Saussure, 1878 | Grigs | 12 | Species | Taxom |
| Prosbolidae Handlirsch, 1906 | | 23 | Species | Taxom |
| Prosbolopseidae Becker-Migdi..., 1946 | | 8 | Species | Taxom |
| Prosopistomatidae Lameere, 1917 | | 3 | Species | Taxom |
| Prostenophlebiidae Fleck & al., 2003 | | 1 | Species | Taxom |
| Prostomidae C. G. Thomson, 1859 | Jugular-horned beetle | 1 | Species | Taxom |
| Protodiplatyidae Martynov, 1925 | | 1 | Species | Taxom |
| Protogryllidae Zeuner, 1937 | | 1 | Species | Taxom |
| Protomyrmeleontidae Handlirsch, 1906 | | 1 | Species | Taxom |
| Protopleciidae Rohdendorf, 1946 | | 1 | Species | Taxom |
| Protopsyllidiidae Becker-Migdi..., 1960 | | 1 | Species | Taxom |
| Protorhyphidae Handlirsch, 1906 | | 2 | Species | Taxom |
| Pruvostitidae Zalessky, 1929 | | 2 | Species | Taxom |
| Pseudococcidae Heymons, 1915 | Mealy Bugs | 1 | Species | Taxom |
| Pseudonannochoristidae Novokshonov, 1994 | | 2 | Species | Taxom |
| Pseudophasmatidae Kirby, 1896 | Striped Walkingsticks | 1 | Species | Taxom |
| Pseudosiricidae Handlirsch, 1908 | | 1 | Species | Taxom |
| Psilidae Macquart, 1835 | Carrot flies | 16 | Species | Taxom |
| Psocidae Samouelle, 1819 | Common bark louse | 2 | Species | Taxom |
| Psychidae Boisduval, 1828 | Bagmoths | 2 | Species | Taxom |
| Psychodidae Newman, 1834 | Drain flies | 12 | Species | Taxom |
| Psychomyiidae Walker, 1852 | Net Tube Caddisflies | 10 | Species | Taxom |
| Psychopsidae Handlirsch, 1906 | Silky lacewing | 6 | Species | Taxom |
| Psyllidae Latreille, 1807 | Jumping plant lice | 76 | Species | Taxom |
| Pteromalidae Dalman, 1820 | Pteromalid wasps | 16 | Species | Taxom |
| Pteronarcyidae Enderlein, 1909 | Giant stoneflies | 2 | Species | Taxom |
| Pterophoridae Zeller, 1841 | Plume Moths | 25 | Species | Taxom |
| Ptiliidae Heer, 1843 | Feather-wing beetles | 10 | Species | Taxom |
| Ptilodactylidae Laporte, 1836 | Ptilodactylid beetles | 1 | Species | Taxom |
| Ptinidae Latreille, 1802 | Death-watch and Spider Beetles | 8 | Species | Taxom |
| Ptychopteridae Osten Sacken, 1862 | Phantom crane flies | 25 | Species | Taxom |
| Pulicidae Billberg, 1820 | Cat fleas | 1 | Species | Taxom |
| Pygidicranidae (Verhoeff, 1902) | | 1 | Species | Taxom |
| Pyralidae Latreille, 1802 | Flour Moths | 34 | Species | Taxom |
| Pyrgotidae Schiner, 1868 | Light Flies | 1 | Species | Taxom |
| Pyrochroidae Latreille, 1807 | Cardinal beetles | 2 | Species | Taxom |
| Pyrrhocoridae Dohrn, 1859 | Cotton stainers | 1 | Species | Taxom |
| Pythidae Solier, 1834 | Dead log bark beetles | 1 | Species | Taxom |
| Raphidiomimidae Vishniakova, 1973 | | 3 | Species | Taxom |
| Rasnitsynaphididae Homan & Wegi..., 2011 | | 3 | Species | Taxom |
| Reduviidae Latreille, 1807 | Assassin and thread-legged bugs | 6 | Species | Taxom |
| Retinaphididae Heie, 2000 | | 2 | Species | Taxom |
| Rhagionempididae Rohdendorf, 1938 | | 2 | Species | Taxom |
| Rhagionidae Latreille, 1802 | Snipe flies | 11 | Species | Taxom |
| Rhaphidophoridae Walker, 1869 | And Cave Weta | 6 | Species | Taxom |
| Rhinophoridae Robineau-Des..., 1863 | Woodlouse flies | 0 | Species | Taxom |
| Rhinotermitidae Froggatt, 1897 | Subterranean termites | 1 | Species | Taxom |
| Rhizoecidae Williams, 1969 | | 1 | Species | Taxom |
| Rhombocoleidae Rohdendorf, 1961 | | 5 | Species | Taxom |
| Rhopalidae Amyot & Serv..., 1843 | Rhopalid Bugs | 11 | Species | Taxom |
| Rhyparochromidae Amyot & Serv..., 1843 | Dirt-colored Seed Bugs | 45 | Species | Taxom |
| Ricaniidae Amyot & Audi..., 1843 | | 1 | Species | Taxom |
| Riodinidae Grote, 1895 | Metalmark Butterflies | 4 | Species | Taxom |
| Romaleidae Brunner von ..., 1893 | Lubber grasshopper | 1 | Species | Taxom |
| Roproniidae Bradley, 1905 | Roproniid wasps | 2 | Species | Taxom |
| Saldidae Amyot and Se..., 1843 | Shore bug | 8 | Species | Taxom |
| Salpingidae Leach, 1815 | Narrow-waisted bark beetle | 3 | Species | Taxom |
| Sapygidae Latreille, 1810 | Club-horned wasps | 0 | Species | Taxom |
| Sarcophagidae Macquart, 1834 | Flesh flies | 16 | Species | Taxom |
| Saturniidae Boisduval, 1837 | And Giant Silk Moths | 8 | Species | Taxom |
| Saurophthiridae Ponomarenko, 1986 | | 1 | Species | Taxom |
| Scarabaeidae Latreille, 1802 | Dung beetles | 362 | Species | Taxom |
| Scathophagidae Robineau-Des..., 1830 | Dung flies | 26 | Species | Taxom |
| Scatopsidae Newman, 1834 | Dung midges | 1 | Species | Taxom |
| Scelionidae Haliday, 1839 | Scelionid wasps | 113 | Species | Taxom |
| Scenopinidae Burmeister, 1835 | Window Flies | 0 | Species | Taxom |
| Schizocoleidae Rohdendorf, 1961 | | 13 | Species | Taxom |
| Schizopteridae Reuter, 1891 | Jumping ground bugs | 1 | Species | Taxom |
| Sciomyzidae Fallen, 1820 | Marsh Flies | 10 | Species | Taxom |
| Scirtidae Fleming, 1821 | Marsh Beetle | 2 | Species | Taxom |
| Scoliidae Leach, 1815 | Mammoth wasps | 2 | Species | Taxom |
| Scraptiidae Mulsant, 1856 | Antlike leaf beetles | 7 | Species | Taxom |
| Scutelleridae Leach, 1815 | Jewel bugs | 3 | Species | Taxom |
| Scydmaenidae (Leach, 1815) | Ant-like stone beetles | 11 | Species | Taxom |
| Scythrididae Rebel, 1901 | Flower Moths | 1 | Species | Taxom |
| Scytinopteridae Handlirsch, 1906 | | 12 | Species | Taxom |
| Sepsidae Walker, 1833 | Black scavenger flies | 3 | Species | Taxom |
| Sepulcidae Rasnitsyn, 1968 | | 16 | Species | Taxom |
| Sesiidae Boisduval, 1828 | Clear Wings | 5 | Species | Taxom |
| Shaposhnikoviidae Kononova, 1976 | | 6 | Species | Taxom |
| Shurabellidae Popov, 1971 | | 1 | Species | Taxom |
| Siberhyphidae Kovalev, 1985 | | 1 | Species | Taxom |
| Siberioperlidae Sinitshenkova, 1983 | | 11 | Species | Taxom |
| Silphidae Latreille, 1807 | Burying And Carrion Beetles | 48 | Species | Taxom |
| Silvanidae Kirby, 1837 | Flat bark beetles | 1 | Species | Taxom |
| Simuliidae Newman, 1834 | Black flies | 46 | Species | Taxom |
| Siphlonuridae Banks, 1900 | Primitive Minnow Mayflies | 9 | Species | Taxom |
| Siricidae Billberg, 1820 | Horntail | 4 | Species | Taxom |
| Solenoptilidae Handlirsch, 1906 | | 2 | Species | Taxom |
| Sphaeritidae Schuckard, 1839 | False clown beetle | 1 | Species | Taxom |
| Sphaeroceridae Macquart, 1835 | Dung flies | 7 | Species | Taxom |
| Sphecidae Latreille, 1802 | Digger & Sand wasps | 2 | Species | Taxom |
| Sphindidae Jacquelin du..., 1860 | Cryptic slime mold beetle | 3 | Species | Taxom |
| Sphingidae Latreille, 1802 | Hawk Moths | 42 | Species | Taxom |
| Spilapteridae Brongniart, 1894 | | 1 | Species | Taxom |
| Spiloblattinidae Handlirsch, 1906 | | 2 | Species | Taxom |
| Staphylinidae Lameere, 1900 | Rove beetles | 879 | Species | Taxom |
| Stenopsocidae Pearman, 1936 | Narrow Barklice | 1 | Species | Taxom |
| Stenopsychidae Martynov, 1924 | | 3 | Species | Taxom |
| Stenotrachelidae C. G. Thomson, 1859 | False long-horned beetles | 1 | Species | Taxom |
| Stigmaphronidae Kozlov, 1975 | Stigmaphronid wasps | 1 | Species | Taxom |
| Strashilidae Rasnitsyn, 1992 | | 1 | Species | Taxom |
| Stratiomyidae Latreille, 1802 | Soldier flies | 6 | Species | Taxom |
| Strongylophthalmyiidae Hennig, 1940 | Strongylophthalmyiid flies | 1 | Species | Taxom |
| Surijokocixiidae Shcherbakov, 2000 | | 3 | Species | Taxom |
| Surijokopsocidae Becker-Migdi..., 1961 | | 1 | Species | Taxom |
| Synlestidae Tillyard, 1917 | Malachite | 1 | Species | Taxom |
| Synteliidae Lewis, 1882 | | 1 | Species | Taxom |
| Syrphidae Latreille, 1802 | Drone flies | 642 | Species | Taxom |
| Szelegiewicziidae Wegierek, 1989 | | 1 | Species | Taxom |
| Tabanidae Latreille, 1802 | Breeze flies | 21 | Species | Taxom |
| Tachinidae (Robineau-Des..., 1830) | Bristle Flies | 60 | Species | Taxom |
| Taeniopterygidae Klapálek, 1905 | Taeniopterygid winter stoneflies | 16 | Species | Taxom |
| Tajmyraphididae Kononova, 1975 | | 3 | Species | Taxom |
| Taldycupedidae Rohdendorf, 1961 | | 5 | Species | Taxom |
| Tanyderidae Alexander, 1919 | Primitive crane flies | 4 | Species | Taxom |
| Tarsophlebiidae Handlirsch, 1906 | | 2 | Species | Taxom |
| Tchirkovaeidae Sinichenkova, 1979 | | 1 | Species | Taxom |
| Tenebrionidae Latreille, 1802 | Darkling Beetle | 32 | Species | Taxom |
| Tenthredinidae Latreille, 1804 | Common sawflies | 45 | Species | Taxom |
| Tephritidae Newman, 1834 | Fruit flies | 106 | Species | Taxom |
| Termitidae Latreille, 1802 | Higher termites | 3 | Species | Taxom |
| Tessaratomidae Stål, 1864 | Giant shield bug | 1 | Species | Taxom |
| Tetratomidae Billberg, 1820 | Polypore fungus beetle | 1 | Species | Taxom |
| Tetrigidae Rambur, 1838 | Groundhoppers | 15 | Species | Taxom |
| Tettigarctidae Distant, 1905 | Hairy cicada | 1 | Species | Taxom |
| Tettigometridae Germar, 1821 | | 2 | Species | Taxom |
| Tettigoniidae Krauss, 1902 | Bush crickets | 52 | Species | Taxom |
| Thaumatoneuridae Fraser, 1957 | | 1 | Species | Taxom |
| Therevidae Newman, 1834 | Stiletto flies | 5 | Species | Taxom |
| Thripidae Stevens, 1829 | Common thrips | 3 | Species | Taxom |
| Throscidae Laporte, 1840 | False metallic wood-boring beetles | 1 | Species | Taxom |
| Thyrididae Herrich-Schä..., 1846 | Picture Winged Leaf Moths | 2 | Species | Taxom |
| Tineidae Latreille, 1810 | & Allies | 13 | Species | Taxom |
| Tingidae Laporte, 1832 | Lace bug | 58 | Species | Taxom |
| Tiphiidae Leach, 1815 | Flower wasps | 2 | Species | Taxom |
| Tipulidae Latreille, 1802 | Crane Flies | 860 | Species | Taxom |
| Tomiidae Martynov, 1936 | | 1 | Species | Taxom |
| Tomiochoristidae Martynova, 1958 | | 6 | Species | Taxom |
| Torephemeridae Sinitshekova, 1989 | | 1 | Species | Taxom |
| Tortricidae Latreille, 1803 | Bell Moths | 158 | Species | Taxom |
| Torymidae Walker, 1833 | Apple seed chalcids | 2 | Species | Taxom |
| Trachypachidae C. G. Thomson, 1857 | False ground beetle | 15 | Species | Taxom |
| Triaplidae Ponomarenko, 1977 | Extinct family | 1 | Species | Taxom |
| Trichoceridae Rondani, 1841 | Winter Crane Flies | 36 | Species | Taxom |
| Trichogrammatidae Haliday, 1851 | Trichogrammatid wasps | 4 | Species | Taxom |
| Tridactylidae Saussure, 1874 | Pygmy mole cricket | 6 | Species | Taxom |
| Trigonidiidae (Saussure, 1870) | And Ground Crickets | 10 | Species | Taxom |
| Triozidae Löw, 1879 | Jumping plant lice | 28 | Species | Taxom |
| Trogidae (MacLeay, 1819) | Gnawer beetles | 26 | Species | Taxom |
| Trogiidae Enderlein, 1903 | Granary Booklice | 0 | Species | Taxom |
| Trogossitidae Latreille, 1802 | Bark gnawing beetle | 7 | Species | Taxom |
| Tropiduchidae Stål, 1866 | Tropiduchid Planthoppers | 2 | Species | Taxom |
| Ulopidae (Le Peletier ..., 1825) | | 1 | Species | Taxom |
| Ulyanidae (Zherikhin, 1993) | | 1 | Species | Taxom |
| Umenocoleidae Chen & Tian, 1973 | | 1 | Species | Taxom |
| Undopterigidae (Kozlov, 1988) | | 1 | Species | Taxom |
| Uraniidae Blanchard, 1845 | Swallowtail Moths | 2 | Species | Taxom |
| Vanhorniidae Crawford, 1909 | Vanhorniid wasps | 1 | Species | Taxom |
| Veliidae Amyot & Serv..., 1843 | Broad-shouldered bugs | 1 | Species | Taxom |
| Vermipsyllidae Wagner, 1889 | Carnivore fleas | 4 | Species | Taxom |
| Vespidae Leach, 1815 | And Allies | 26 | Species | Taxom |
| Vitimiidae Sharov, 1968 | | 2 | Species | Taxom |
| Vitimotauliidae Sukatsheva, 1968 | | 13 | Species | Taxom |
| Xiphydriidae Leach, 1819 | Wood wasps | 3 | Species | Taxom |
| Xyelidae Newman, 1835 | Sawfly | 22 | Species | Taxom |
| Xyelotomidae Rasnitsyn, 1968 | | 5 | Species | Taxom |
| Xylococcidae (Pergrande, 1898) | | 1 | Species | Taxom |
| Xylomyidae Verrall, 1901 | Wood soldier flies | 2 | Species | Taxom |
| Xylophagidae Fallen, 1810 | Awl-flies | 3 | Species | Taxom |
| Xyloryctidae Meyrick, 1890 | Flower Moths | 1 | Species | Taxom |
| Yponomeutidae Stephens, 1829 | Ermine Moths | 9 | Species | Taxom |
| Ypsolophidae Guenée, 1845 | Ypsolophid Moths | 8 | Species | Taxom |
| Zopheridae Solier, 1834 | Cylindrical bark beetles | 2 | Species | Taxom |
| Zygaenidae Latreille, 1809 | Burnet Forester | 29 | Species | Taxom |
