| Aclerdidae Ferris, 1937 | Aclerdid scales | 1 | Species | Taxom |
| Acrididae MacLeay, 1819 | Grasshoppers and locusts | 238 | Species | Taxom |
| Acroceridae Leach, 1815 | Hunch-back flies | 8 | Species | Taxom |
| Adelgidae Heinze, 1962 | Adelgids | 1 | Species | Taxom |
| Adelidae Bruand, 1851 | Adelid Moths | 3 | Species | Taxom |
| Ademosynidae Ponomarenko, 1968 | | 12 | Species | Taxom |
| Aderidae Winkler, 1927 | Ant-like leaf beetles | 1 | Species | Taxom |
| Aenigmephemeridae Tshernova, 1968 | | 1 | Species | Taxom |
| Aeolothripidae Uzel, 1895 | Banded thrips | 5 | Species | Taxom |
| Aerophasmidae Martynov, 1928 | | 4 | Species | Taxom |
| Aeroplanidae Tillyard, 1918 | | 4 | Species | Taxom |
| Aeshnidae Rambur, 1842 | Darners | 16 | Species | Taxom |
| Agromyzidae Fallen, 1823 | Leaf miner flies | 18 | Species | Taxom |
| Agyrtidae Thomson, 1859 | Primitive carrion beetles | 6 | Species | Taxom |
| Aktassiidae Pritykina, 1968 | | 1 | Species | Taxom |
| Alexarasniidae Gorochov, 2011 | | 2 | Species | Taxom |
| Aleyrodidae Westwood, 1840 | Whiteflies | 9 | Species | Taxom |
| Alucitidae Leach, 1815 | Many Plumed Moths | 2 | Species | Taxom |
| Alydidae Amyot & Serv..., 1843 | Bean bugs | 4 | Species | Taxom |
| Anaxyelidae Martynov, 1925 | Anaxyelids | 28 | Species | Taxom |
| Andrenidae Webster, 1913 | Andrenid bees | 64 | Species | Taxom |
| Aneuretopsychidae Rasnitsyn & ..., 1990 | | 2 | Species | Taxom |
| Anisopodidae Knab, 1912 | Window Midges | 6 | Species | Taxom |
| Anomopterellidae (Rasnitsyn, 1975) | | 1 | Species | Taxom |
| Ansorgiidae Krzeminski &..., 1993 | | 1 | Species | Taxom |
| Antefungivoridae Rohdendorf, 1938 | | 10 | Species | Taxom |
| Anthicidae Latreille, 1819 | Ant beetles | 13 | Species | Taxom |
| Anthomyiidae Robineau-Des..., 1830 | Anthomyiid flies | 19 | Species | Taxom |
| Anthomyzidae Czerny, 1903 | Anthomyzid flies | 1 | Species | Taxom |
| Anthribidae Billberg, 1820 | Fungus Weevil | 10 | Species | Taxom |
| Apataniidae Wallengren, 1886 | Early Smoky Wing Sedges | 9 | Species | Taxom |
| Aphalaridae Löw, 1879 | | 57 | Species | Taxom |
| Aphelinidae Thomson, 1876 | Aphelinid wasps | 13 | Species | Taxom |
| Aphididae Latreille, 1802 | Aphid | 96 | Species | Taxom |
| Aphrophoridae Evans, 1946 | Froghoppers | 6 | Species | Taxom |
| Apidae Latreille, 1802 | Bumble bees | 153 | Species | Taxom |
| Archijassidae Becker-Migdi..., 1962 | | 5 | Species | Taxom |
| Archimylacridae Handlirsch, 1906 | | 4 | Species | Taxom |
| Archipsyllidae Handlirsch, 1908 | | 3 | Species | Taxom |
| Archisargidae Rohdendorf, 1962 | | 11 | Species | Taxom |
| Archizelmiridae Rohdendorf, 1962 | | 1 | Species | Taxom |
| Arctiidae Leach, 1815 | Footman moths | 11 | Species | Taxom |
| Argentinoblattidae Martins-Neto..., 2005 | | 7 | Species | Taxom |
| Argidae Konow, 1890 | Argid flies | 2 | Species | Taxom |
| Artheneidae Stål, 1872 | | 12 | Species | Taxom |
| Ascalaphidae Rambur, 1842 | Owlflies | 1 | Species | Taxom |
| Asilidae Latreille, 1802 | Assassin flies | 257 | Species | Taxom |
| Asiopsocidae Mockford & G..., 1976 | | 2 | Species | Taxom |
| Asiopteridae Pritykina, 1968 | | 14 | Species | Taxom |
| Atelestidae Hennig, 1970 | | 1 | Species | Taxom |
| Attelabidae Billberg, 1820 | Leaf Rolling Weevil | 36 | Species | Taxom |
| Aulacigastridae Wollaston, 1864 | Aulacigastrid flies | 1 | Species | Taxom |
| Baetidae Leach, 1815 | Mayflies | 0 | Species | Taxom |
| Baissopteridae Martynova, 1961 | | 1 | Species | Taxom |
| Baleyopterygidae N.D. Siniche..., 1985 | | 1 | Species | Taxom |
| Batkeniidae Pritykina, 1981 | | 2 | Species | Taxom |
| Batrachedridae Heinemann & ..., 1876 | Batrachedrid Moths | 2 | Species | Taxom |
| Beraeidae Wallengren, 1891 | Small eastern caddisflies | 1 | Species | Taxom |
| Berothidae Handlirsch, 1906 | Beaded lacewing | 12 | Species | Taxom |
| Berytidae Fieber, 1851 | Stilt bug | 9 | Species | Taxom |
| Bethylonymidae Rasnitsyn, 1975 | | 18 | Species | Taxom |
| Bibionidae Fleming, 1821 | Bibionid flies | 4 | Species | Taxom |
| Bintoniellidae Handlirsch, 1937 | | 8 | Species | Taxom |
| Bittacidae Handlirsch, 1906 | Hanging scorpionflies | 17 | Species | Taxom |
| Blattellidae (Karny, 1908) | German Cockroach | 6 | Species | Taxom |
| Blattidae Stephens, 1829 | American cockroaches | 4 | Species | Taxom |
| Blattogryllidae Rasnitsyn, 1976 | | 10 | Species | Taxom |
| Blattulidae Vishnyokova, 1982 | | 6 | Species | Taxom |
| Blephariceridae Loew, 1861 | Mountain midges | 8 | Species | Taxom |
| Blissidae Stål, 1862 | Chinch Bugs | 8 | Species | Taxom |
| Bombycidae Latreille, 1802 | Lappet moths | 2 | Species | Taxom |
| Bombyliidae Latreille, 1802 | Bee Flies | 379 | Species | Taxom |
| Boreidae Latreille, 1816 | Snow fleas | 2 | Species | Taxom |
| Bostrichidae Latreille, 1802 | Auger beetles | 18 | Species | Taxom |
| Brachodidae Agenjo, 1966 | Little Bear Moths | 1 | Species | Taxom |
| Brachycentridae Ulmer, 1903 | Humpless Casemaker Caddisflies | 3 | Species | Taxom |
| Brachyceridae (Billberg, 1820) | Brachycerids | 4 | Species | Taxom |
| Brachypteridae (Erichson, 1845) | Short-winged Flower Beetles | 2 | Species | Taxom |
| Braconidae Latreille, 1829 | Braconid wasps | 112 | Species | Taxom |
| Bradynobaenidae Saussure, 1892 | Bradynobaenid wasps | 1 | Species | Taxom |
| Brentidae Billberg, 1820 | Brenthidae | 19 | Species | Taxom |
| Brongniartiellidae Martynova, 1949 | | 1 | Species | Taxom |
| Buprestidae Leach, 1815 | Flat-headed wood-borers | 145 | Species | Taxom |
| Byrrhidae Latreille, 1804 | Moss beetles | 3 | Species | Taxom |
| Caliscelidae Amyot & Serv..., 1843 | Piglet Bugs | 12 | Species | Taxom |
| Calliphoridae Brauer & Ber..., 1889 | Blow flies | 10 | Species | Taxom |
| Caloblattinidae Vršanský & A..., 2000 | | 3 | Species | Taxom |
| Calopterygidae Selys, 1850 | Broad-winged damselflies | 2 | Species | Taxom |
| Campterophlebiidae Handlirsch, 1920 | | 17 | Species | Taxom |
| Cantharidae Imhoff, 1856 | Cantharids | 27 | Species | Taxom |
| Canthyloscelidae Enderlein, 1912 | | 2 | Species | Taxom |
| Capniidae Klapálek, 1905 | Capniid winter stoneflies | 7 | Species | Taxom |
| Carabidae Latreille, 1802 | Carabid beetles | 1778 | Species | Taxom |
| Carnidae Newman, 1834 | Bird flies | 5 | Species | Taxom |
| Cecidomyiidae Newman, 1834 | Cecidomyidae | 764 | Species | Taxom |
| Cephidae Newman, 1834 | Cephids | 10 | Species | Taxom |
| Cerambycidae Latreille, 1802 | Long Horn beetles | 432 | Species | Taxom |
| Ceraphronidae Haliday, 1833 | Ceraphronid wasps | 0 | Species | Taxom |
| Ceratophyllidae Dampf, 1908 | Bird Fleas | 43 | Species | Taxom |
| Ceratopogonidae Newman, 1834 | Biting midge | 111 | Species | Taxom |
| Cercopidae Leach, 1815 | Froghopper | 2 | Species | Taxom |
| Ceresopseidae Becker-Migdi..., 1958 | | 3 | Species | Taxom |
| Cerococcidae Balachowsky, 1942 | Cerococcids | 3 | Species | Taxom |
| Chaeteessidae Handlirsch, 1920 | | 1 | Species | Taxom |
| Chalcididae Latreille, 1817 | Chalcidid wasps | 16 | Species | Taxom |
| Chamaemyiidae Hendel, 1910 | Aphid flies | 10 | Species | Taxom |
| Chaoboridae Newman, 1834 | Phantom midge | 2 | Species | Taxom |
| Chironomidae Erichson, 1842 | Chironomids | 18 | Species | Taxom |
| Chlorocyphidae Cowley, 1937 | Jewel damselfly | 1 | Species | Taxom |
| Chloroperlidae Okamoto, 1912 | Green stoneflies | 2 | Species | Taxom |
| Chloropidae Schoenherr, 1840 | Chloropid flies | 17 | Species | Taxom |
| Chresmodidae Haase, 1890 | | 5 | Species | Taxom |
| Chrysididae Latreille, 1802 | Chrysidid wasps | 12 | Species | Taxom |
| Chrysomelidae Latreille, 1802 | Casebearers | 93 | Species | Taxom |
| Chrysopidae Schneider, 1851 | And Green Lacewings | 3 | Species | Taxom |
| Chyromyidae Hendel, 1916 | Chiromyid flies | 8 | Species | Taxom |
| Cicadellidae Latreille, 1802 | Cicadellids | 1163 | Species | Taxom |
| Cicadidae Westwood, 1840 | Cicada | 46 | Species | Taxom |
| Cicadomorphidae Handlirsch, 1906 | Giant cicadas | 2 | Species | Taxom |
| Ciidae Leach, 1819 | Minute tree fungus beetles | 2 | Species | Taxom |
| Cimbicidae Kirby, 1837 | Cimbicid sawflies | 2 | Species | Taxom |
| Cixiidae Spinola, 1839 | Cixid planthoppers | 43 | Species | Taxom |
| Cladochoristidae Tillyard, 1926 | | 1 | Species | Taxom |
| Cleridae Latreille, 1802 | Checkered Beetle | 7 | Species | Taxom |
| Coccidae Stephens, 1829 | Soft scale | 51 | Species | Taxom |
| Coccinellidae Latreille, 1807 | Coccinelles | 30 | Species | Taxom |
| Coelocatiniidae Ponomarenko, 1968 | | 6 | Species | Taxom |
| Coenagrionidae Kirby, 1890 | Narrow-winged damselflies | 10 | Species | Taxom |
| Coleophoridae Hübner, 1825 | Case moths | 161 | Species | Taxom |
| Colletidae Lepeletier, 1841 | Colletid bees | 46 | Species | Taxom |
| Colymbotethidae Ponomarenko, 1993 | | 1 | Species | Taxom |
| Coniopterygidae Burmeister, 1839 | Dusty lacewings | 1 | Species | Taxom |
| Conopidae Latreille, 1802 | Thick-headed Flies | 5 | Species | Taxom |
| Coptoclavidae Ponomarenko, 1961 | Extinct family | 9 | Species | Taxom |
| Coptopsyllidae Wagner, 1928 | | 6 | Species | Taxom |
| Cordulegasteridae | | 2 | Species | Taxom |
| Cordulegastridae Calvert, 1893 | Biddie | 1 | Species | Taxom |
| Coreidae Leach, 1815 | Broad-headed bugs | 30 | Species | Taxom |
| Corixidae Leach, 1815 | Lesser Water-Boatman | 3 | Species | Taxom |
| Corydiidae de Saussure, 1864 | Sand cockroaches | 7 | Species | Taxom |
| Cosmopterigidae Heinemann & ..., 1876 | Cosmet Moths | 11 | Species | Taxom |
| Cossidae Leach, 1815 | Borers | 137 | Species | Taxom |
| Crabronidae Latreille, 1802 | Bee Wolves | 37 | Species | Taxom |
| Crambidae Latreille, 1810 | Crambid Snout Moths | 105 | Species | Taxom |
| Creaphididae Shcherbakov ..., 1991 | | 1 | Species | Taxom |
| Cryptochetidae Brues & Mela..., 1932 | Cryptochetid Flies | 1 | Species | Taxom |
| Cryptophagidae Kirby, 1937 | Mould beetles | 4 | Species | Taxom |
| Ctenophthalmidae Rothschild, 1915 | | 23 | Species | Taxom |
| Cucujidae Latreille, 1802 | Flat bark beetles | 2 | Species | Taxom |
| Culicidae Meigen, 1818 | Mosquito | 12 | Species | Taxom |
| Cupedidae Laporte, 1836 | Cupedids | 30 | Species | Taxom |
| Curculionidae Latreille, 1802 | Ambrosia beetles | 932 | Species | Taxom |
| Cyclothemistidae Bechly, 1996 | | 4 | Species | Taxom |
| Cydnidae Billberg, 1820 | Burrower bugs | 2 | Species | Taxom |
| Cymatophlebiidae Handlirsch, 1906 | | 1 | Species | Taxom |
| Cymidae Baerensprung, 1860 | | 4 | Species | Taxom |
| Cynipidae Latreille, 1802 | Cynipid gall wasps | 3 | Species | Taxom |
| Daldubidae Storozhenko, 1996 | | 1 | Species | Taxom |
| Dascillidae Guérin-Ménev..., 1843 | Orchid beetles | 2 | Species | Taxom |
| Delphacidae Leach, 1815 | Delphacid planthoppers | 110 | Species | Taxom |
| Derbidae Spinola, 1839 | Derbid planthoppers | 1 | Species | Taxom |
| Dericorythidae Jacobson & B..., 1902 | | 53 | Species | Taxom |
| Dermapteridae Vishniakova, 1980 | | 2 | Species | Taxom |
| Dermestidae Hope, 1840 | Carpet beetles | 111 | Species | Taxom |
| Deuterophlebiidae Edwards, 1922 | Mountain midges | 1 | Species | Taxom |
| Diapheromeridae Rehn & Hebard, 1909 | Diapheromerid Stick Insects | 6 | Species | Taxom |
| Diapriidae Latreille, 1796 | Diapriid wasps | 2 | Species | Taxom |
| Diaspididae Maskell, 1878 | Armored scale insects | 63 | Species | Taxom |
| Dictyodipteridae Rohdendorf, 1961 | | 1 | Species | Taxom |
| Dictyopharidae Spinola, 1839 | Dictyopharid Planthoppers | 18 | Species | Taxom |
| Diechoblattinidae Handlirsch, 1906 | | 1 | Species | Taxom |
| Dilaridae Newman, 1853 | Pleasing lacewing | 2 | Species | Taxom |
| Diprionidae Rohwer, 1911 | Conifer sawflies | 4 | Species | Taxom |
| Dipseudopsidae Ulmer, 1904 | | 1 | Species | Taxom |
| Dixidae Schiner, 1868 | Dixid Midges | 1 | Species | Taxom |
| Dolichopodidae Latreille, 1809 | Long legged flies | 33 | Species | Taxom |
| Drepanidae Meyrick, 1895 | Drepanids | 2 | Species | Taxom |
| Drosophilidae Rondani, 1856 | Fruit flies | 11 | Species | Taxom |
| Dryinidae Haliday, 1840 | Dryinid wasps | 0 | Species | Taxom |
| Dryopidae Billberg, 1820 | Long toed water beetle | 10 | Species | Taxom |
| Dunstaniidae Tillyard, 1916 | | 2 | Species | Taxom |
| Dysmorphoptilidae Handlirsch, 1906 | | 1 | Species | Taxom |
| Dysoneuridae Sukatsheva, 1968 | | 1 | Species | Taxom |
| Dytiscidae Leach, 1815 | Diving beetles | 36 | Species | Taxom |
| Dzhajloutshellidae Gorochov, 1994 | | 5 | Species | Taxom |
| Ectobiidae (Brunner von ..., 1865) | Wood cockroaches | 16 | Species | Taxom |
| Ectopsocidae | Outer Barklice | 1 | Species | Taxom |
| Elachistidae Bruand, 1851 | Elachistid moths | 42 | Species | Taxom |
| Elateridae Leach, 1815 | Click Beetle | 318 | Species | Taxom |
| Elcanidae Handlirsch, 1906 | | 5 | Species | Taxom |
| Electrentomidae Enderlein, 1911 | | 1 | Species | Taxom |
| Elipsocidae Pearman, 1936 | Damp Barklice | 1 | Species | Taxom |
| Elliidae Krzeminska, ..., 1993 | | 1 | Species | Taxom |
| Elmidae Curtis, 1830 | Drive beetles | 6 | Species | Taxom |
| Embiidae Burmeister, 1839 | | 1 | Species | Taxom |
| Empididae Latreille, 1809 | Balloon flies | 35 | Species | Taxom |
| Encyrtidae Walker, 1837 | Encyrtid wasps | 199 | Species | Taxom |
| Enderleinellidae Ewing, 1929 | | 1 | Species | Taxom |
| Endomychidae Leach, 1815 | False Ladybirds | 1 | Species | Taxom |
| Eneopteridae (Saussure, 1893) | Bush cricket | 1 | Species | Taxom |
| Eolepidopterigidae Rasnitsyn, 1983 | | 1 | Species | Taxom |
| Eomeropidae Cockerell, 1909 | | 2 | Species | Taxom |
| Eomyiidae Rohdendorf, 1962 | | 1 | Species | Taxom |
| Eopolyneuridae Rohdendorf, 1962 | | 2 | Species | Taxom |
| Eostratiomyiidae Rohdendorf, 1962 | | 1 | Species | Taxom |
| Epermeniidae Spuler, 1910 | Epermeniid moths | 17 | Species | Taxom |
| Ephemerellidae (Klapálek, 1909) | Blue-Winged Olive Ephemerellidae | 1 | Species | Taxom |
| Ephialtitidae Handlirsch, 1906 | | 46 | Species | Taxom |
| Ephydridae Zetterstedt, 1837 | Brine flies | 11 | Species | Taxom |
| Erebidae Leach, 1815 | Erebid Moths | 253 | Species | Taxom |
| Eremochaetidae Ussatchov, 1968 | | 3 | Species | Taxom |
| Erichschmidtiidae Bechly, 1996 | | 2 | Species | Taxom |
| Eriococcidae Cockerell, 1899 | Eriococcid scales | 31 | Species | Taxom |
| Eriocraniidae Rebel, 1901 | Eriocraniid moths | 2 | Species | Taxom |
| Erotylidae Latreille, 1802 | Pleasing Fungus Beetle | 2 | Species | Taxom |
| Eucharitidae Latreille, 1809 | Eucharitid wasp | 1 | Species | Taxom |
| Eucnemidae Eschscholtz, 1829 | Click Beetles | 0 | Species | Taxom |
| Eulophidae Westwood, 1829 | Eulophid wasps | 69 | Species | Taxom |
| Eumastacidae Burr, 1898 | Matchstick grasshoppers | 13 | Species | Taxom |
| Eupelmidae Walker, 1833 | Eupelmid wasps | 8 | Species | Taxom |
| Euryptilonidae Martynov, 1940 | | 1 | Species | Taxom |
| Eurytomidae Walker, 1832 | Eurytomid wasps | 57 | Species | Taxom |
| Euthemistidae Pritykina, 1968 | | 2 | Species | Taxom |
| Evaniidae Latreille, 1802 | Ensign wasp | 3 | Species | Taxom |
| Figitidae Thomson, 1862 | Figitid wasps | 0 | Species | Taxom |
| Formicidae Latreille, 1809 | Ant | 293 | Species | Taxom |
| Fulgoridae Latreille, 1807 | Fulgorid Planthopper | 3 | Species | Taxom |
| Fulgoridiidae Handlirsch, 1939 | | 5 | Species | Taxom |
| Fungivoritidae Rohdendorf, 1957 | | 6 | Species | Taxom |
| Gelechiidae Stainton, 1854 | Gelechiid moths | 89 | Species | Taxom |
| Geocoridae Baerensprung, 1860 | Big-eyed Bugs | 28 | Species | Taxom |
| Geometridae Leach, 1815 | Cankerworm moths | 569 | Species | Taxom |
| Geotrupidae Latreille, 1802 | Dor beetles | 103 | Species | Taxom |
| Gerridae Leach, 1815 | Jesus bugs | 1 | Species | Taxom |
| Gigasiricidae (Rasnitsyn, 1968) | | 1 | Species | Taxom |
| Glaphyridae MacLeay, 1819 | Bumble bee scarab beetle | 7 | Species | Taxom |
| Glaresidae Kolbe, 1905 | Enigmatic scarab beetle | 3 | Species | Taxom |
| Glosselytridae Martynov, 1938 | | 1 | Species | Taxom |
| Glossosomatidae Wallengren, 1891 | Little Black Caddisflies | 7 | Species | Taxom |
| Glyphipterigidae Stainton, 1854 | Glyphipterigid moths | 1 | Species | Taxom |
| Gnomuscidae Shcherbakov, 1995 | | 2 | Species | Taxom |
| Gomphaeschnidae Tillyard & F..., 1940 | | 1 | Species | Taxom |
| Gomphidae Rambur, 1842 | Club-tailed dragonflies | 1 | Species | Taxom |
| Gracillariidae Stainton, 1854 | Blotch leaf miner moths | 86 | Species | Taxom |
| Grammolingiidae Ren, 2002 | | 2 | Species | Taxom |
| Gryllacrididae Blanchard, 1845 | Camel Crickets | 3 | Species | Taxom |
| Gryllavidae Gorochov, 1986 | | 3 | Species | Taxom |
| Gryllidae Bolivar, 1878 | Crickets | 24 | Species | Taxom |
| Gryllotalpidae Saussure, 1870 | Mole cricket | 2 | Species | Taxom |
| Gyrinidae Latreille, 1802 | Whirligig beetle | 10 | Species | Taxom |
| Haglidae Handlirsch, 1906 | Hump-winged cricket | 62 | Species | Taxom |
| Hagloedischiidae Gorochov, 1986 | | 1 | Species | Taxom |
| Halictidae Thomson, 1869 | Flower bees | 80 | 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 | 10 | Species | Taxom |
| Heloridae Förster, 1856 | Helorid wasps | 3 | Species | Taxom |
| Hemerobiidae Latreille, 1802 | Brown Lacewing | 2 | Species | Taxom |
| Hennigmatidae Shcherbakov, 1995 | | 1 | Species | Taxom |
| Hepialidae Stephens, 1829 | Ghost Moths | 9 | Species | Taxom |
| Heptageniidae Needham, 1901 | Flat-Bodied Up-Wings Heptageniidae | 11 | Species | Taxom |
| Hesperiidae Latreille, 1809 | Indet. Skipper | 52 | Species | Taxom |
| Heteroceridae MacLeay, 1825 | Mud beetles | 19 | Species | Taxom |
| Heterogastridae Stål, 1872 | | 7 | Species | Taxom |
| Hexagenitidae Lameere, 1917 | | 1 | Species | Taxom |
| Hippoboscidae Samouelle, 1819 | Keds | 11 | Species | Taxom |
| Histeridae Gyllenhal, 1808 | Clown beetle | 186 | Species | Taxom |
| Hodotermitidae Desneux, 1904 | Harvester termites | 5 | Species | Taxom |
| Hoplopleuridae Ewing, 1929 | | 1 | Species | Taxom |
| Hybosoridae Erichson, 1847 | Pill scarab beetles | 7 | Species | Taxom |
| Hybotidae Meigen, 1820 | Dance flies | 9 | Species | Taxom |
| Hydraenidae Mulsant, 1844 | Cascade Beetles | 41 | Species | Taxom |
| Hydrobiosidae Ulmer, 1905 | | 18 | Species | Taxom |
| Hydrophilidae Latreille, 1802 | Silver Water Beetles | 105 | Species | Taxom |
| Hydropsychidae Curtis, 1835 | Net Spinning caddisflies | 7 | Species | Taxom |
| Hydroptilidae Stephens, 1836 | Micro caddisflies | 8 | Species | Taxom |
| Hylicellidae Evans, 1956 | | 5 | Species | Taxom |
| Hyperpolyneuridae Rohdendorf, 1961 | | 1 | Species | Taxom |
| Hystrichopsyllidae Tiraboschi, 1904 | Insectivore fleas | 2 | Species | Taxom |
| Ichneumonidae Latreille, 1802 | Ichneumon flies | 24 | Species | Taxom |
| Ideliidae (Zalessky, 1929) | | 11 | Species | Taxom |
| Ipsviciidae Tillyard, 1919 | | 1 | Species | Taxom |
| Ischnopsyllidae Wahlgren, 1907 | Bat fleas | 4 | Species | Taxom |
| Isophlebiidae Handlirsch, 1908 | | 2 | Species | Taxom |
| Isostictidae Fraser, 1955 | Narrow-wings | 1 | Species | Taxom |
| Issidae Spinola, 1839 | Issid planthoppers | 32 | Species | Taxom |
| Juragomphidae Nel, Bechly,..., 2001 | | 1 | Species | Taxom |
| Juraphididae Zyla & al., 2014 | | 2 | Species | Taxom |
| Jurinidae Zalessky, 1929 | | 1 | Species | Taxom |
| Kalligrammatidae Handlirsch, 1906 | | 11 | Species | Taxom |
| Kaltanidae Martynova, 1958 | | 4 | Species | Taxom |
| Karabasiidae Popov, 1985 | | 2 | Species | Taxom |
| Karatavitidae Rasnitsyn, 1963 | | 3 | Species | Taxom |
| Kennedyidae Tillyard, 1925 | | 2 | Species | Taxom |
| Keroplatidae Rondani, 1856 | Fungus gnats | 1 | Species | Taxom |
| Kovalevisargidae Mostovski, 1997 | | 2 | Species | Taxom |
| Labiduridae Verhoeff, 1902 | Long-horned earwig | 2 | Species | Taxom |
| Lachesillidae Pearman, 1936 | Fateful Barklice | 1 | Species | Taxom |
| Lampyridae Latreille, 1817 | Fireflies | 3 | Species | Taxom |
| Lasiocampidae Harris, 1841 | Eggar Moths | 16 | Species | Taxom |
| Lasiosynidae Kirejtshuk, ..., 2010 | | 3 | Species | Taxom |
| Latridiidae Erichson, 1842 | Minute brown scavenger beetle | 2 | Species | Taxom |
| Lauxaniidae Macquart, 1835 | Beach flies | 22 | Species | Taxom |
| Lecithoceridae Le Marchand, 1947 | Long-horned moths | 1 | Species | Taxom |
| Leiodidae Fleming, 1821 | Round fungus beetles | 50 | Species | Taxom |
| Lemoniidae Hampson, 1918 | Autumn Silkworm Moths | 2 | Species | Taxom |
| Lepidostomatidae Ulmer, 1903 | Bizarre Caddisflies | 17 | Species | Taxom |
| Lepismatidae Latreille, 1802 | Lepismatid Fishmoths | 16 | Species | Taxom |
| Leptoceridae Leach, 1815 | Long Horned caddisflies | 8 | Species | Taxom |
| Leptopsyllidae Rothschild &..., 1915 | Bird fleas | 34 | Species | Taxom |
| Lestidae Calvert, 1901 | Spread-winged damselflies | 4 | Species | Taxom |
| Leuctridae Klapálek, 1905 | Needle Or Willow Stoneflies | 2 | Species | Taxom |
| Liadopsyllidae Martynov, 1927 | | 8 | Species | Taxom |
| Liassophlebiidae Tillyard, 1925 | Damsel-dragonflies | 1 | Species | Taxom |
| Libellulidae Rambur, 1842 | Chasers | 23 | Species | Taxom |
| Liberiblattinidae Vrsansky, 2002 | | 2 | Species | Taxom |
| Limacodidae Duponchel, 1845 | Cup moths | 1 | Species | Taxom |
| Limnephilidae Kolenati, 1848 | Northern caddisflies | 7 | Species | Taxom |
| Limnichidae Erichson, 1846 | Minute marsh loving beetle | 4 | Species | Taxom |
| Limoniidae (Speiser, 1909) | Craneflies | 48 | Species | Taxom |
| Linognathidae Webb, 1946 | | 1 | Species | Taxom |
| Liomopteridae Sellards, 1909 | | 3 | Species | Taxom |
| Liopteridae Ashmead, 1895 | Liopterid wasps | 1 | Species | Taxom |
| Liposcelididae Enderlein, 1911 | Booklice | 1 | Species | Taxom |
| Liupanshaniidae Bechly & al, 2001 | | 1 | Species | Taxom |
| Liviidae Low, 1879 | | 22 | Species | Taxom |
| Locustavidae Sharov, 1968 | | 10 | Species | Taxom |
| Locustopsidae Handlirsch, 1906 | | 4 | Species | Taxom |
| Lophioneuridae Tillyard, 1921 | | 8 | Species | Taxom |
| Lucanidae Latreille, 1804 | Stag Beetle | 10 | Species | Taxom |
| Lycaenidae Leach, 1815 | And blues | 204 | Species | Taxom |
| Lycidae Laporte, 1836 | Lycid beetles | 1 | Species | Taxom |
| Lygaeidae Schilling, 1829 | Chinch bugs | 36 | Species | Taxom |
| Lyonetiidae Stainton, 1854 | Lyonet Moths | 8 | Species | Taxom |
| Machilidae Grassi, 1888 | Jumping bristletail | 4 | Species | Taxom |
| Madygenophlebiidae Storozhenko, 1992 | | 4 | Species | Taxom |
| Maguviopseidae Shcherbakov, 2011 | | 11 | Species | Taxom |
| Malmopsyllidae Becker-Migdi..., 1985 | | 1 | Species | Taxom |
| Mantidae Burmeister, 1838 | Mantids | 19 | Species | Taxom |
| Mantispidae Leach, 1815 | Mantid lacewings | 4 | Species | Taxom |
| Margarodidae Newstead, 1901 | Cottony cushion scales | 33 | Species | Taxom |
| Meenoplidae Fieber, 1872 | | 2 | Species | Taxom |
| Megachilidae Schenk, 1860 | And Resin Bees | 57 | Species | Taxom |
| Megakhosaridae Sharov, 1961 | | 5 | Species | Taxom |
| Megalodontesidae Konow, 1897 | | 6 | Species | Taxom |
| Megalyridae Schletterer, 1889 | Megalyrid wasps | 33 | Species | Taxom |
| Megapodagrionidae Tillyard, 1917 | Flatwing | 2 | Species | Taxom |
| Megaspilidae Ashmead, 1893 | Megaspilid wasps | 0 | Species | Taxom |
| Melandryidae Leach, 1815 | False Darkling Beetle | 2 | Species | Taxom |
| Melittidae Schenk, 1860 | Melittid bees | 6 | Species | Taxom |
| Meloidae Gyllenhal, 1810 | Blister Beetle | 151 | Species | Taxom |
| Melolonthidae (Leach, 1817) | Chafers | 9 | Species | Taxom |
| Melyridae Leach, 1815 | Malachite Beetles | 9 | Species | Taxom |
| Membracidae Germar, 1821 | Horned Treehoppers | 1 | Species | Taxom |
| Mengenillidae Kinzelbach, 1970 | | 1 | Species | Taxom |
| Menoponidae Mjöberg, 1910 | Bird lice | 1 | Species | Taxom |
| Mesoblattinidae Handlirsch, 1906 | | 9 | Species | Taxom |
| Mesochrysopidae Handlirsch, 1906 | | 8 | Species | Taxom |
| Mesoedischiidae Gorochov, 1987 | | 4 | Species | Taxom |
| Mesojabloniidae Storozhenko, 1992 | | 3 | Species | Taxom |
| Mesoleuctridae Sinitshenkova, 1982 | | 4 | Species | Taxom |
| Mesopentacoridae Popov, 1968 | | 1 | Species | Taxom |
| Mesophantasmatidae Rohdendorf, 1962 | | 1 | Species | Taxom |
| Mesopsocidae Enderlein, 1903 | Middle Barklice | 4 | Species | Taxom |
| Mesopsychidae Tillyard, 1917 | | 9 | Species | Taxom |
| Mesoraphidiidae Martynov, 1925 | | 8 | Species | Taxom |
| Mesorthopteridae Tillyard, 1922 | | 13 | Species | Taxom |
| Mesoserphidae Kozlov, 1970 | | 21 | Species | Taxom |
| Mesotitanidae Tillyard, 1925 | | 16 | Species | Taxom |
| Mesotrephidae Popov, 1971 | | 1 | Species | Taxom |
| Micronectidae Jaczewski, 1924 | Pygmy water boatmen | 1 | Species | Taxom |
| Micropezidae Illiger, 1798 | Stilt Flies | 1 | Species | Taxom |
| Microphoridae (Chvala, 1983) | | 1 | Species | Taxom |
| Microphysidae Dohrn, 1859 | Microphysid bugs | 1 | Species | Taxom |
| Micropterigidae Herrich-Schä..., 1855 | Mandibulate Archaic Moths | 2 | Species | Taxom |
| Microptysmatidae Martynova, 1958 | | 1 | Species | Taxom |
| Milichiidae Schiner, 1862 | Filth flies | 2 | Species | Taxom |
| Miridae Hahn, 1831 | Capsid bugs | 253 | Species | Taxom |
| Mitophlebiidae Pritykina, 1981 | | 1 | Species | Taxom |
| Monophlebidae Signoret, 1875 | Giant scale | 2 | Species | Taxom |
| Monotomidae Laporte, 1840 | Minute Clubbed Beetles | 2 | Species | Taxom |
| Mordellidae Latreille, 1802 | Pintail beetles | 41 | Species | Taxom |
| Muscidae Latreille, 1802 | Face flies | 18 | Species | Taxom |
| Musidoromimidae Rohdendorf, 1962 | | 1 | Species | Taxom |
| Mutillidae André, 1907 | Cow ant | 2 | Species | Taxom |
| Mycetophagidae Leach, 1815 | Hairy fungus beetle | 1 | Species | Taxom |
| Mycetophilidae Newman, 1834 | Fungus Gnat | 37 | Species | Taxom |
| Mymaridae Haliday, 1833 | Fairflies | 3 | Species | Taxom |
| Myrmecophilidae Saussure, 1874 | Ant cricket | 5 | Species | Taxom |
| Myrmeleontidae Latreille, 1802 | Ant lions | 3 | Species | Taxom |
| Nabidae Costa, 1852 | Damsel bugs | 2 | Species | Taxom |
| Nadipteridae Lukashevich, 1995 | | 3 | Species | Taxom |
| Naibiidae Shcherbakov, 2007 | | 1 | Species | Taxom |
| Naucoridae Leach, 1815 | Creeping water bug | 5 | Species | Taxom |
| Necrotauliidae Handlirsch, 1906 | | 5 | Species | Taxom |
| Nemestrinidae Macquart, 1834 | Tangle-veined flies | 42 | Species | Taxom |
| Nemonychidae Bedel, 1882 | Nemonychid weevils | 84 | Species | Taxom |
| Nemouridae Newman, 1853 | Brown stoneflies | 8 | Species | Taxom |
| Neopsylloididae Becker-Migdi..., 1985 | | 3 | Species | Taxom |
| Nepidae Latreille, 1802 | Back-swimmer Water-boatmen | 3 | Species | Taxom |
| Nepticulidae Stainton, 1854 | Leaf miners | 27 | Species | Taxom |
| Nitidulidae Latreille, 1802 | Nitidules | 2 | Species | Taxom |
| Noctuidae Latreille, 1809 | Armyworms | 344 | Species | Taxom |
| Nogodinidae Melichar, 1898 | | 1 | Species | Taxom |
| Nolidae Hampson, 1894 | Hatted Caterpillars | 5 | Species | Taxom |
| Notodontidae Stephens, 1829 | Bag Shelter Moths | 17 | Species | Taxom |
| Notonectidae Latreille, 1802 | Back Swimmers | 2 | Species | Taxom |
| Nymphalidae Rafinesque, 1815 | Admirals | 285 | Species | Taxom |
| Nymphidae Rambur, 1842 | Split-footed lacewing | 1 | Species | Taxom |
| Nymphitidae Handlirsch, 1906 | | 3 | Species | Taxom |
| Obrieniidae Zherikhin an..., 1994 | | 10 | Species | Taxom |
| Ochodaeidae Mulsant & Rey, 1870 | Sand-loving scarab beetle | 4 | Species | Taxom |
| Odiniidae Hendel, 1920 | Odiniid flies | 4 | Species | Taxom |
| Oecanthidae (Blanchard, 1845) | Tree cricket | 2 | Species | Taxom |
| Oecophoridae Bruand, 1851 | Concealer Moths | 3 | Species | Taxom |
| Oedemeridae Latreille, 1810 | False Blister Beetle | 18 | Species | Taxom |
| Oestridae Leach, 1815 | Bot flies | 3 | Species | Taxom |
| Ommatidae Sharp & Muir, 1912 | | 59 | Species | Taxom |
| Opomyzidae (Fallen, 1820) | Opomyzid flies | 2 | Species | Taxom |
| Opostegidae Meyrick, 1893 | Opostegid moths | 10 | Species | Taxom |
| Ormyridae Förster, 1856 | Armyrids | 7 | Species | Taxom |
| Ortheziidae Green, 1896 | Ensign coccids | 1 | Species | Taxom |
| Orthophlebiidae Handlirsch, 1906 | | 44 | Species | Taxom |
| Orussidae Newman, 1834 | Orussid wasps | 1 | Species | Taxom |
| Osmylidae Leach, 1815 | Giant lacewings | 18 | Species | Taxom |
| Osmylitidae Martynova, 1949 | | 1 | Species | Taxom |
| Osmylopsychopidae Martynova, 1949 | | 4 | Species | Taxom |
| Otitidae (Macquart, 1835) | Picture-winged flies | 38 | Species | Taxom |
| Oxycarenidae Stål, 1862 | | 20 | Species | Taxom |
| Pachygronthidae Stål, 1865 | | 2 | Species | Taxom |
| Pachymeridiidae Handlirsch, 1906 | | 1 | Species | Taxom |
| Pachyneuridae Schiner, 1864 | Dark-winged fungus gnats | 1 | Species | Taxom |
| Paedembiidae Ross, 2006 | | 2 | Species | Taxom |
| Palaeoaphididae Richards, 1966 | | 1 | Species | Taxom |
| Palaeonemouridae N.D. Siniche..., 1987 | | 2 | Species | Taxom |
| Palaeontinidae Handlirsch, 1906 | Giant cicadas | 10 | Species | Taxom |
| Palaeoperlidae Sharov, 1961 | | 1 | Species | Taxom |
| Palaeophoridae Rohdendorf, 1951 | | 1 | Species | Taxom |
| Pamphagidae Burmeister, 1840 | Toad grasshopper | 30 | Species | Taxom |
| Pamphiliidae Cameron, 1890 | Leaf-rolling sawflies | 1 | Species | Taxom |
| Panfiloviidae Makarkin, 1990 | | 1 | Species | Taxom |
| Panorpidae Linnaeus, 1758 | Common scorpionflies | 1 | Species | Taxom |
| Papilionidae Latreille, 1802 | Apollos | 36 | Species | Taxom |
| Parachoristidae Tillyard, 1937 | | 4 | Species | Taxom |
| Paracymatophlebiidae Bechly & al, 2001 | | 1 | Species | Taxom |
| Paragonophlebiidae Nel, 2009 | | 1 | Species | Taxom |
| Parakseneuridae Yang & al., 2012 | | 1 | Species | Taxom |
| Parandrexidae Kirejtshuk, 1994 | | 3 | Species | Taxom |
| Parapamphiliidae Rasnitsyn, 1968 | | 1 | Species | Taxom |
| Paratitanidae Sharov, 1968 | | 11 | Species | Taxom |
| Paraxymyiidae Rohdendorf, 1946 | Paxylommatid wasps | 2 | Species | Taxom |
| Paroryssidae Martynov, 1925 | | 9 | Species | Taxom |
| Paurophlebiidae Bechly, 1996 | | 6 | Species | Taxom |
| Pediciidae Osten Sacken, 1860 | Hairy-Eyed Crane Flies | 2 | Species | Taxom |
| Peltoperlidae Claassen, 1931 | Roach stoneflies | 1 | Species | Taxom |
| Pentatomidae Leach, 1815 | Lesser shield bugs | 20 | Species | Taxom |
| Perilampidae Latreille, 1809 | Perilampid waps | 3 | Species | Taxom |
| Perlariopseidae N.D. Siniche..., 1985 | | 19 | Species | Taxom |
| Perlidae (Latreille, 1802) | Common stoneflies | 7 | Species | Taxom |
| Perlodidae Klapálek, 1912 | Perlodid stoneflies | 5 | Species | Taxom |
| Permelcanidae Sharov, 1962 | | 2 | Species | Taxom |
| Permithonidae Tillyard, 1922 | | 7 | Species | Taxom |
| Permochoristidae Tillyard, 1918 | | 22 | Species | Taxom |
| Permosialidae Martynov, 1928 | | 3 | Species | Taxom |
| Permotermopsidae Martuinov, 1937 | | 2 | Species | Taxom |
| Petaluridae Needham, 1903 | Grayback dragonfly | 2 | Species | Taxom |
| Phalangopsidae (Chopard, 1949) | Spider cricket | 1 | Species | Taxom |
| Phasmatidae Roberts, 1944 | Walking sticks | 1 | Species | Taxom |
| Phasmomimidae Sharov, 1968 | | 4 | Species | Taxom |
| Philopotamidae Stephens, 1829 | Finger Net caddisflies | 4 | Species | Taxom |
| Philopteridae Burmeister, 1830 | | 1 | Species | Taxom |
| Phlaeothripidae Uzel, 1895 | Thrips | 18 | Species | Taxom |
| Phoridae Curtis, 1833 | Coffin Flies | 5 | Species | Taxom |
| Phyloblattidae Schneider, 1983 | | 1 | Species | Taxom |
| Pieridae Duponchel, 1835 | And Sulphurs | 73 | Species | Taxom |
| Piesmatidae Amyot & Audi..., 1843 | Ash grey leaf bug | 7 | Species | Taxom |
| Pincombeidae Tillyard, 1922 | | 1 | Species | Taxom |
| Pipunculidae Walker, 1834 | Big headed flies | 51 | Species | Taxom |
| Platygastridae Haliday, 1833 | Platygastrid wasps | 7 | Species | Taxom |
| Platyperlidae Sinitshenkova, 1982 | | 1 | Species | Taxom |
| Platystictidae Laidlaw, 1924 | Forest Damselflies | 1 | Species | Taxom |
| Platystomatidae Schiner, 1862 | Picture-winged flies | 10 | Species | Taxom |
| Pleciodictyidae Rohdendorf, 1962 | | 1 | Species | Taxom |
| Pleciofungivoridae Rohdendorf, 1946 | | 30 | Species | Taxom |
| Pleciomimidae Rodendorf, 1949 | | 15 | Species | Taxom |
| Plutellidae Guenée, 1845 | Diamond-back moths | 2 | Species | Taxom |
| Polycentropodidae Ulmer, 1903 | Tube Maker Caddisflies | 2 | Species | Taxom |
| Polyplacidae Fahrenholz, 1912 | Spiny rat lice | 2 | Species | Taxom |
| Polystoechotidae Handlirsch, 1906 | Giant lacewing | 3 | Species | Taxom |
| Pompilidae Latreille, 1805 | Pompilid wasps | 250 | Species | Taxom |
| Praeaulacidae Rasnitsyn, 1972 | | 27 | Species | Taxom |
| Praelateriidae Dolin, 1973 | | 1 | Species | Taxom |
| Praesiricidae Rasnitsyn, 1968 | | 1 | Species | Taxom |
| Procercopidae Handlirsch, 1906 | | 3 | Species | Taxom |
| Prochresmodidae Vishniakova, 1980 | | 4 | Species | Taxom |
| Procramptonomyiidae Kovalev, 1985 | | 1 | Species | Taxom |
| Proctotrupidae Latreille, 1802 | Proctotrupid wasps | 1 | Species | Taxom |
| Progonocimicidae Handlirsch, 1906 | | 34 | Species | Taxom |
| Prohemerobiidae Handlirsch, 1906 | | 1 | Species | Taxom |
| Proparagryllacrididae Riek, 1956 | | 10 | Species | Taxom |
| Prophalangopsidae Saussure, 1878 | Grigs | 17 | Species | Taxom |
| Prorhyacophilidae Riek, 1955 | | 1 | Species | Taxom |
| Protembiidae Tillyard, 1937 | | 1 | Species | Taxom |
| Protendipedidae Rohdendorf, 1962 | | 1 | Species | Taxom |
| Protodiplatyidae Martynov, 1925 | | 7 | Species | Taxom |
| Protogryllidae Zeuner, 1937 | | 3 | Species | Taxom |
| Protoligoneuridae Rohdendorf, 1962 | | 6 | Species | Taxom |
| Protomeropidae Tillyard, 1926 | | 3 | Species | Taxom |
| Protomphralidae Rohdendorf, 1957 | | 1 | Species | Taxom |
| Protomyrmeleontidae Handlirsch, 1906 | | 7 | Species | Taxom |
| Protopleciidae Rohdendorf, 1946 | | 12 | Species | Taxom |
| Protopsyllidiidae Becker-Migdi..., 1960 | | 16 | Species | Taxom |
| Protorhyphidae Handlirsch, 1906 | | 4 | Species | Taxom |
| Pseudococcidae Heymons, 1915 | Mealy Bugs | 108 | Species | Taxom |
| Pseudophasmatidae Kirby, 1896 | Striped Walkingsticks | 1 | Species | Taxom |
| Pseudopolycentropodidae Handlirsch, 1925 | | 2 | Species | Taxom |
| Pseudosiricidae Handlirsch, 1908 | | 1 | Species | Taxom |
| Pseudostigmatidae Tillyard, 1917 | Forest giants | 1 | Species | Taxom |
| Psilidae Macquart, 1835 | Carrot flies | 2 | Species | Taxom |
| Psocidae Samouelle, 1819 | Common bark louse | 1 | Species | Taxom |
| Psychidae Boisduval, 1828 | Bagmoths | 2 | Species | Taxom |
| Psychodidae Newman, 1834 | Drain flies | 14 | Species | Taxom |
| Psychomyiidae Walker, 1852 | Net Tube Caddisflies | 3 | Species | Taxom |
| Psychopsidae Handlirsch, 1906 | Silky lacewing | 4 | Species | Taxom |
| Psyllidae Latreille, 1807 | Jumping plant lice | 45 | Species | Taxom |
| Pteromalidae Dalman, 1820 | Pteromalid wasps | 62 | Species | Taxom |
| Pterophoridae Zeller, 1841 | Plume Moths | 152 | Species | Taxom |
| Ptiliidae Heer, 1843 | Feather-wing beetles | 6 | Species | Taxom |
| Ptinidae Latreille, 1802 | Death-watch and Spider Beetles | 10 | Species | Taxom |
| Ptychopteridae Osten Sacken, 1862 | Phantom crane flies | 20 | Species | Taxom |
| Pulicidae Billberg, 1820 | Cat fleas | 16 | Species | Taxom |
| Putoidae Beardsley, 1969 | Giant mealybugs | 6 | Species | Taxom |
| Pygidicranidae (Verhoeff, 1902) | | 4 | Species | Taxom |
| Pygiopsyllidae Wagner, 1939 | | 1 | Species | Taxom |
| Pyralidae Latreille, 1802 | Flour Moths | 121 | Species | Taxom |
| Pyrgomorphidae Brunner von ..., 1874 | Bushlocusts | 3 | Species | Taxom |
| Pyrrhocoridae Dohrn, 1859 | Cotton stainers | 1 | Species | Taxom |
| Raphidiidae Latreille, 1810 | Raphidiid snakeflies | 3 | Species | Taxom |
| Raphidiomimidae Vishniakova, 1973 | | 3 | Species | Taxom |
| Reduviidae Latreille, 1807 | Assassin and thread-legged bugs | 5 | Species | Taxom |
| Rhagionemestriidae Ussatchov, 1968 | | 3 | Species | Taxom |
| Rhagionidae Latreille, 1802 | Snipe flies | 13 | Species | Taxom |
| Rhinophoridae Robineau-Des..., 1863 | Woodlouse flies | 1 | Species | Taxom |
| Rhipiceridae Latreille, 1834 | Cedar beetles | 1 | Species | Taxom |
| Rhizoecidae Williams, 1969 | | 2 | Species | Taxom |
| Rhopalidae Amyot & Serv..., 1843 | Rhopalid Bugs | 17 | Species | Taxom |
| Rhopalopsyllidae Oudemans, 1909 | Marsupial fleas | 1 | Species | Taxom |
| Rhyacophilidae Stephens, 1836 | Free-living Caddisflies | 2 | Species | Taxom |
| Rhyparochromidae Amyot & Serv..., 1843 | Dirt-colored Seed Bugs | 70 | Species | Taxom |
| Ricaniidae Amyot & Audi..., 1843 | | 1 | Species | Taxom |
| Riodinidae Grote, 1895 | Metalmark Butterflies | 9 | Species | Taxom |
| Ripiphoridae Gemminger & ..., 1870 | Rhipiphoridae | 2 | Species | Taxom |
| Rutelidae (MacLeay, 1819) | | 7 | Species | Taxom |
| Saaloscytinidae Brauckmann, ..., 2006 | | 1 | Species | Taxom |
| Saldidae Amyot and Se..., 1843 | Shore bug | 2 | Species | Taxom |
| Sarcophagidae Macquart, 1834 | Flesh flies | 162 | Species | Taxom |
| Saturniidae Boisduval, 1837 | And Giant Silk Moths | 3 | Species | Taxom |
| Scaphocoridae Popov, 1968 | | 1 | Species | Taxom |
| Scarabaeidae Latreille, 1802 | Dung beetles | 623 | Species | Taxom |
| Scathophagidae Robineau-Des..., 1830 | Dung flies | 7 | Species | Taxom |
| Scatopsidae Newman, 1834 | Dung midges | 5 | Species | Taxom |
| Scelionidae Haliday, 1839 | Scelionid wasps | 86 | Species | Taxom |
| Scenopinidae Burmeister, 1835 | Window Flies | 11 | Species | Taxom |
| Schizophoridae Ponomarenko, 1968 | | 31 | Species | Taxom |
| Sciaridae Billberg, 1820 | Black fungus gnats | 7 | Species | Taxom |
| Sciomyzidae Fallen, 1820 | Marsh Flies | 8 | Species | Taxom |
| Scirtidae Fleming, 1821 | Marsh Beetle | 1 | Species | Taxom |
| Scolebythidae Evans, 1963 | Scolebythid wasps | 1 | Species | Taxom |
| Scoliidae Leach, 1815 | Mammoth wasps | 5 | Species | Taxom |
| Scraptiidae Mulsant, 1856 | Antlike leaf beetles | 5 | Species | Taxom |
| Scutelleridae Leach, 1815 | Jewel bugs | 4 | Species | Taxom |
| Scydmaenidae (Leach, 1815) | Ant-like stone beetles | 9 | Species | Taxom |
| Sepsidae Walker, 1833 | Black scavenger flies | 7 | Species | Taxom |
| Sepulcidae Rasnitsyn, 1968 | | 3 | Species | Taxom |
| Serpentivenidae Shcherbakov, 1984 | | 1 | Species | Taxom |
| Serphitidae Brues, 1937 | | 1 | Species | Taxom |
| Sesiidae Boisduval, 1828 | Clear Wings | 21 | Species | Taxom |
| Shurabellidae Popov, 1971 | | 1 | Species | Taxom |
| Siberioperlidae Sinitshenkova, 1983 | | 1 | Species | Taxom |
| Signiphoridae Howard, 1894 | Signiphorid waps | 1 | Species | Taxom |
| Silphidae Latreille, 1807 | Burying And Carrion Beetles | 44 | Species | Taxom |
| Silvanidae Kirby, 1837 | Flat bark beetles | 1 | Species | Taxom |
| Simuliidae Newman, 1834 | Black flies | 13 | Species | Taxom |
| Siphlonuridae Banks, 1900 | Primitive Minnow Mayflies | 2 | Species | Taxom |
| Siricidae Billberg, 1820 | Horntail | 11 | Species | Taxom |
| Skokidae Vrsansky, 2007 | Jumping cockroach | 1 | Species | Taxom |
| Solenoptilidae Handlirsch, 1906 | | 1 | Species | Taxom |
| Sphaeroceridae Macquart, 1835 | Dung flies | 2 | Species | Taxom |
| Sphecidae Latreille, 1802 | Digger & Sand wasps | 12 | Species | Taxom |
| Sphingidae Latreille, 1802 | Hawk Moths | 35 | Species | Taxom |
| Spiloblattinidae Handlirsch, 1906 | | 1 | Species | Taxom |
| Spongiphoridae Verhoeff, 1902 | Little Earwigs | 1 | Species | Taxom |
| Staphylinidae Lameere, 1900 | Rove beetles | 964 | Species | Taxom |
| Steleopteridae Handlirsch, 1906 | | 1 | Species | Taxom |
| Stenophlebiidae Needham, 1903 | | 1 | Species | Taxom |
| Stenopsychidae Martynov, 1924 | | 1 | Species | Taxom |
| Stratiomyidae Latreille, 1802 | Soldier flies | 51 | Species | Taxom |
| Stylopidae Kirby, 1813 | Strepsiptera | 2 | Species | Taxom |
| Syrphidae Latreille, 1802 | Drone flies | 219 | Species | Taxom |
| Tabanidae Latreille, 1802 | Breeze flies | 45 | Species | Taxom |
| Tachinidae (Robineau-Des..., 1830) | Bristle Flies | 48 | Species | Taxom |
| Taeniopterygidae Klapálek, 1905 | Taeniopterygid winter stoneflies | 5 | Species | Taxom |
| Taldycupedidae Rohdendorf, 1961 | | 1 | Species | Taxom |
| Tanyderidae Alexander, 1919 | Primitive crane flies | 5 | Species | Taxom |
| Tanyderophryneidae Rohdendorf, 1962 | | 1 | Species | Taxom |
| Tarsophlebiidae Handlirsch, 1906 | | 3 | Species | Taxom |
| Tenebrionidae Latreille, 1802 | Darkling Beetle | 58 | Species | Taxom |
| Tenthredinidae Latreille, 1804 | Common sawflies | 55 | Species | Taxom |
| Tephritidae Newman, 1834 | Fruit flies | 93 | Species | Taxom |
| Termitidae Latreille, 1802 | Higher termites | 3 | Species | Taxom |
| Tethinidae (Hendel, 1916) | Tethinid flies | 1 | Species | Taxom |
| Tetracampidae Förster, 1856 | Tetracampid wasps | 2 | Species | Taxom |
| Tetratomidae Billberg, 1820 | Polypore fungus beetle | 1 | Species | Taxom |
| Tetrigidae Rambur, 1838 | Groundhoppers | 8 | Species | Taxom |
| Tettigarctidae Distant, 1905 | Hairy cicada | 4 | Species | Taxom |
| Tettigometridae Germar, 1821 | | 10 | Species | Taxom |
| Tettigoniidae Krauss, 1902 | Bush crickets | 81 | Species | Taxom |
| Thaumatomeropidae Willmann, 1978 | | 5 | Species | Taxom |
| Therevidae Newman, 1834 | Stiletto flies | 42 | Species | Taxom |
| Thripidae Stevens, 1829 | Common thrips | 31 | Species | Taxom |
| Throscidae Laporte, 1840 | False metallic wood-boring beetles | 1 | Species | Taxom |
| Thyreocoridae Amyot and Se..., 1843 | Black bugs | 0 | Species | Taxom |
| Tineidae Latreille, 1810 | & Allies | 17 | Species | Taxom |
| Tingidae Laporte, 1832 | Lace bug | 78 | Species | Taxom |
| Tipulidae Latreille, 1802 | Crane Flies | 294 | Species | Taxom |
| Tipulodictyidae Rohdendorf, 1962 | | 1 | Species | Taxom |
| Tipulopleciidae Rohdendorf, 1962 | | 1 | Species | Taxom |
| Tischeriidae Spuler, 1898 | Lyonetiid moths | 1 | Species | Taxom |
| Tortricidae Latreille, 1803 | Bell Moths | 136 | Species | Taxom |
| Torymidae Walker, 1833 | Apple seed chalcids | 18 | Species | Taxom |
| Trachypachidae C. G. Thomson, 1857 | False ground beetle | 12 | Species | Taxom |
| Triadophlebiidae Pritykina, 1981 | | 6 | Species | Taxom |
| Triadotypidae Grauvogel & ..., 1952 | | 2 | Species | Taxom |
| Triaplidae Ponomarenko, 1977 | Extinct family | 2 | Species | Taxom |
| Triassolestidae Bonaparte, 1970 | | 3 | Species | Taxom |
| Trichoceridae Rondani, 1841 | Winter Crane Flies | 8 | Species | Taxom |
| Trichogrammatidae Haliday, 1851 | Trichogrammatid wasps | 9 | Species | Taxom |
| Tricoleidae (Ponomarenko, 1969) | | 5 | Species | Taxom |
| Tridactylidae Saussure, 1874 | Pygmy mole cricket | 3 | Species | Taxom |
| Trigonidiidae (Saussure, 1870) | And Ground Crickets | 4 | Species | Taxom |
| Triozidae Löw, 1879 | Jumping plant lice | 28 | Species | Taxom |
| Trogidae (MacLeay, 1819) | Gnawer beetles | 7 | Species | Taxom |
| Trogossitidae Latreille, 1802 | Bark gnawing beetle | 6 | Species | Taxom |
| Tropiduchidae Stål, 1866 | Tropiduchid Planthoppers | 2 | Species | Taxom |
| Tuphellidae Gorochov, 1988 | | 5 | Species | Taxom |
| Turanothemistidae Pritykina, 1968 | | 1 | Species | Taxom |
| Ulidiidae Macquart, 1835 | Picture-winged Flies | 1 | Species | Taxom |
| Ulopidae (Le Peletier ..., 1825) | | 4 | Species | Taxom |
| Uninervidae Becker-Migdi..., 1951 | | 1 | Species | Taxom |
| Uraniidae Blanchard, 1845 | Swallowtail Moths | 4 | Species | Taxom |
| Uskatelytridae Martynova, 1952 | | 1 | Species | Taxom |
| Vermipsyllidae Wagner, 1889 | Carnivore fleas | 8 | Species | Taxom |
| Vespidae Leach, 1815 | And Allies | 125 | Species | Taxom |
| Vitimiidae Sharov, 1968 | | 1 | Species | Taxom |
| Vladipteridae Shcherbakov, 1995 | | 4 | Species | Taxom |
| Voltzialestidae Bechly, 1996 | | 3 | Species | Taxom |
| Xamenophlebiidae Pritykina, 1981 | | 1 | Species | Taxom |
| Xenopteridae Riek, 1955 | | 17 | Species | Taxom |
| Xiphopteridae Sharov, 1968 | | 2 | Species | Taxom |
| Xyelidae Newman, 1835 | Sawfly | 51 | Species | Taxom |
| Xyelotomidae Rasnitsyn, 1968 | | 3 | Species | Taxom |
| Xyelydidae Rasnitsyn, 1968 | | 12 | Species | Taxom |
| Xylomyidae Verrall, 1901 | Wood soldier flies | 2 | Species | Taxom |
| Xylophagidae Fallen, 1810 | Awl-flies | 1 | Species | Taxom |
| Yponomeutidae Stephens, 1829 | Ermine Moths | 2 | Species | Taxom |
| Ypsolophidae Guenée, 1845 | Ypsolophid Moths | 5 | Species | Taxom |
| Zopheridae Solier, 1834 | Cylindrical bark beetles | 2 | Species | Taxom |
| Zygaenidae Latreille, 1809 | Burnet Forester | 17 | Species | Taxom |
| Zygophlebiidae Pritykina, 1981 | | 4 | Species | Taxom |
