| Acanaloniidae Amyot and Se..., 1843 | Acanalonid planthoppers | 3 | Species | Taxom |
| Acanthopidae Burmeister, 1838 | | 13 | Species | Taxom |
| Acanthosomatidae Signoret, 1864 | Acanthosomatids | 2 | Species | Taxom |
| Acrididae MacLeay, 1819 | Grasshoppers and locusts | 130 | Species | Taxom |
| Acroceridae Leach, 1815 | Hunch-back flies | 0 | Species | Taxom |
| Aderidae Winkler, 1927 | Ant-like leaf beetles | 15 | Species | Taxom |
| Aeshnidae Rambur, 1842 | Darners | 12 | Species | Taxom |
| Aetalionidae Spinola, 1850 | Treehopper | 3 | Species | Taxom |
| Agaonidae Walker, 1848 | Fig wasp | 1 | Species | Taxom |
| Agathemeridae Bradler, 2003 | | 1 | Species | Taxom |
| Agromyzidae Fallen, 1823 | Leaf miner flies | 3 | Species | Taxom |
| Aididae Schaus, 1906 | | 1 | Species | Taxom |
| Aleyrodidae Westwood, 1840 | Whiteflies | 2 | Species | Taxom |
| Alucitidae Leach, 1815 | Many Plumed Moths | 3 | Species | Taxom |
| Alydidae Amyot & Serv..., 1843 | Bean bugs | 3 | Species | Taxom |
| Amorphoscelidae Stål, 1877 | | 1 | Species | Taxom |
| Amphipsocidae Mockford, 1978 | Hairy-winged Barklice | 1 | Species | Taxom |
| Andrenidae Webster, 1913 | Andrenid bees | 7 | Species | Taxom |
| Anisembiidae Davis, 1940 | | 2 | Species | Taxom |
| Anomalopsychidae Flint, 1981 | | 1 | Species | Taxom |
| Anostostomatidae Saussure, 1859 | Wetas & King Crickets | 1 | Species | Taxom |
| Anthicidae Latreille, 1819 | Ant beetles | 4 | Species | Taxom |
| Anthocoridae Fieber, 1837 | Flower bugs | 1 | Species | Taxom |
| Anthomyiidae Robineau-Des..., 1830 | Anthomyiid flies | 7 | Species | Taxom |
| Anthophoridae (C. L. Koch, 1846) | | 0 | Species | Taxom |
| Anthribidae Billberg, 1820 | Fungus Weevil | 26 | Species | Taxom |
| Aphalaridae Löw, 1879 | | 3 | Species | Taxom |
| Aphididae Latreille, 1802 | Aphid | 7 | Species | Taxom |
| Aphrophoridae Evans, 1946 | Froghoppers | 2 | Species | Taxom |
| Apidae Latreille, 1802 | Bumble bees | 277 | Species | Taxom |
| Aradidae Spinola, 1837 | Flat bug | 17 | Species | Taxom |
| Archembiidae Ross, 2001 | | 1 | Species | Taxom |
| Arctiidae Leach, 1815 | Footman moths | 49 | Species | Taxom |
| Argidae Konow, 1890 | Argid flies | 5 | Species | Taxom |
| Artematopodidae Lacordaire, 1857 | Soft bodied plant beetle | 1 | Species | Taxom |
| Ascalaphidae Rambur, 1842 | Owlflies | 5 | Species | Taxom |
| Asilidae Latreille, 1802 | Assassin flies | 84 | Species | Taxom |
| Asterolecaniidae Cockerell, 1896 | Asterolecaniids | 1 | Species | Taxom |
| Athericidae Stuckenberg, 1973 | Athericid flies | 2 | Species | Taxom |
| Attelabidae Billberg, 1820 | Leaf Rolling Weevil | 19 | Species | Taxom |
| Aulacigastridae Wollaston, 1864 | Aulacigastrid flies | 1 | Species | Taxom |
| Baetidae Leach, 1815 | Mayflies | 1 | Species | Taxom |
| Belidae Schönherr, 1826 | Belid Beetle | 2 | Species | Taxom |
| Belostomatidae Leach, 1815 | Alligator ticks | 21 | Species | Taxom |
| Berytidae Fieber, 1851 | Stilt bug | 6 | Species | Taxom |
| Bethylidae Halliday, 1839 | Bethylid wasps | 17 | Species | Taxom |
| Bibionidae Fleming, 1821 | Bibionid flies | 5 | Species | Taxom |
| Biphyllidae LeConte, 1861 | Biphyllid beetles | 0 | Species | Taxom |
| Bittacidae Handlirsch, 1906 | Hanging scorpionflies | 3 | Species | Taxom |
| Blaberidae Saussure, 1864 | Blaberids | 17 | Species | Taxom |
| Blattellidae (Karny, 1908) | German Cockroach | 21 | Species | Taxom |
| Blattidae Stephens, 1829 | American cockroaches | 1 | Species | Taxom |
| Blissidae Stål, 1862 | Chinch Bugs | 1 | Species | Taxom |
| Bombycidae Latreille, 1802 | Lappet moths | 14 | Species | Taxom |
| Bombyliidae Latreille, 1802 | Bee Flies | 18 | Species | Taxom |
| Bostrichidae Latreille, 1802 | Auger beetles | 17 | Species | Taxom |
| Braconidae Latreille, 1829 | Braconid wasps | 30 | Species | Taxom |
| Brentidae Billberg, 1820 | Brenthidae | 29 | Species | Taxom |
| Buprestidae Leach, 1815 | Flat-headed wood-borers | 50 | Species | Taxom |
| Caeciliusidae Kolbe, 1880 | Lizard Barklice | 4 | Species | Taxom |
| Calamoceratidae Ulmer, 1905 | | 2 | Species | Taxom |
| Calliphoridae Brauer & Ber..., 1889 | Blow flies | 24 | Species | Taxom |
| Calophyidae Vondracek, 1957 | | 3 | Species | Taxom |
| Calopterygidae Selys, 1850 | Broad-winged damselflies | 11 | Species | Taxom |
| Cantharidae Imhoff, 1856 | Cantharids | 4 | Species | Taxom |
| Carabidae Latreille, 1802 | Carabid beetles | 505 | Species | Taxom |
| Carsidaridae Crawford, 1911 | | 1 | Species | Taxom |
| Castniidae Boisduval, 1828 | Castniid moths | 12 | Species | Taxom |
| Cecidomyiidae Newman, 1834 | Cecidomyidae | 2 | Species | Taxom |
| Cerambycidae Latreille, 1802 | Long Horn beetles | 1940 | Species | Taxom |
| Ceratocombidae Fieber, 1861 | | 0 | Species | Taxom |
| Ceratopogonidae Newman, 1834 | Biting midge | 8 | Species | Taxom |
| Cercopidae Leach, 1815 | Froghopper | 82 | Species | Taxom |
| Cerophytidae Latreille, 1834 | Cerophytid beetles | 2 | Species | Taxom |
| Cerylonidae Billberg, 1820 | Cerylid Kingfishers | 2 | Species | Taxom |
| Chalcididae Latreille, 1817 | Chalcidid wasps | 12 | Species | Taxom |
| Chaoboridae Newman, 1834 | Phantom midge | 3 | Species | Taxom |
| Chelonariidae Blanchard, 1845 | Chelonarid beetles | 11 | Species | Taxom |
| Chironomidae Erichson, 1842 | Chironomids | 22 | Species | Taxom |
| Chloropidae Schoenherr, 1840 | Chloropid flies | 41 | Species | Taxom |
| Choreutidae Stainton, 1854 | Choreuitid Moths | 8 | Species | Taxom |
| Chrysididae Latreille, 1802 | Chrysidid wasps | 9 | Species | Taxom |
| Chrysomelidae Latreille, 1802 | Casebearers | 344 | Species | Taxom |
| Chrysopidae Schneider, 1851 | And Green Lacewings | 7 | Species | Taxom |
| Cicadellidae Latreille, 1802 | Cicadellids | 803 | Species | Taxom |
| Cicadidae Westwood, 1840 | Cicada | 93 | Species | Taxom |
| Cixiidae Spinola, 1839 | Cixid planthoppers | 10 | Species | Taxom |
| Clastopteridae Stål, 1858 | Clastopterid Spittlebugs | 1 | Species | Taxom |
| Cleridae Latreille, 1802 | Checkered Beetle | 8 | Species | Taxom |
| Clusiidae Schönherr, 1840 | Clusiid flies | 18 | Species | Taxom |
| Coccidae Stephens, 1829 | Soft scale | 2 | Species | Taxom |
| Coccinellidae Latreille, 1807 | Coccinelles | 38 | Species | Taxom |
| Coenagrionidae Kirby, 1890 | Narrow-winged damselflies | 43 | Species | Taxom |
| Coleophoridae Hübner, 1825 | Case moths | 3 | Species | Taxom |
| Colletidae Lepeletier, 1841 | Colletid bees | 45 | Species | Taxom |
| Colobathristidae Stål, 1866 | | 14 | Species | Taxom |
| Coniopterygidae Burmeister, 1839 | Dusty lacewings | 0 | Species | Taxom |
| Conopidae Latreille, 1802 | Thick-headed Flies | 13 | Species | Taxom |
| Coreidae Leach, 1815 | Broad-headed bugs | 105 | Species | Taxom |
| Corioxenidae Kinzelbach, 1970 | | 1 | Species | Taxom |
| Corixidae Leach, 1815 | Lesser Water-Boatman | 5 | Species | Taxom |
| Corydalidae Burmeister, 1839 | Dobsonflies | 10 | Species | Taxom |
| Cosmopterigidae Heinemann & ..., 1876 | Cosmet Moths | 1 | Species | Taxom |
| Cossidae Leach, 1815 | Borers | 13 | Species | Taxom |
| Crabronidae Latreille, 1802 | Bee Wolves | 7 | Species | Taxom |
| Crambidae Latreille, 1810 | Crambid Snout Moths | 103 | Species | Taxom |
| Ctenophthalmidae Rothschild, 1915 | | 3 | Species | Taxom |
| Ctenuchidae (W. Kirby, 1837) | Ctenuchid moths | 1 | Species | Taxom |
| Cucujidae Latreille, 1802 | Flat bark beetles | 9 | Species | Taxom |
| Culicidae Meigen, 1818 | Mosquito | 200 | Species | Taxom |
| Curculionidae Latreille, 1802 | Ambrosia beetles | 727 | Species | Taxom |
| Curtonotidae Duda, 1934 | Curtonotid flies | 5 | Species | Taxom |
| Cydnidae Billberg, 1820 | Burrower bugs | 3 | Species | Taxom |
| Cymidae Baerensprung, 1860 | | 1 | Species | Taxom |
| Cynipidae Latreille, 1802 | Cynipid gall wasps | 1 | Species | Taxom |
| Dactylopiidae Signoret, 1875 | Cochineal insects | 2 | Species | Taxom |
| Dalceridae Dyar, 1898 | Dalcerid moths | 4 | Species | Taxom |
| Dasydemellidae | Shaggy Psocids | 1 | Species | Taxom |
| Delphacidae Leach, 1815 | Delphacid planthoppers | 18 | Species | Taxom |
| Derbidae Spinola, 1839 | Derbid planthoppers | 16 | Species | Taxom |
| Dermestidae Hope, 1840 | Carpet beetles | 18 | Species | Taxom |
| Diapheromeridae Rehn & Hebard, 1909 | Diapheromerid Stick Insects | 8 | Species | Taxom |
| Diapriidae Latreille, 1796 | Diapriid wasps | 2 | Species | Taxom |
| Diaspididae Maskell, 1878 | Armored scale insects | 16 | Species | Taxom |
| Diastatidae Hendel, 1917 | Bog flies | 1 | Species | Taxom |
| Dicteriadidae Selys, 1853 | Barelegs | 1 | Species | Taxom |
| Dictyopharidae Spinola, 1839 | Dictyopharid Planthoppers | 9 | Species | Taxom |
| Discolomatidae Horn, 1878 | | 5 | Species | Taxom |
| Dixidae Schiner, 1868 | Dixid Midges | 0 | Species | Taxom |
| Dolichopodidae Latreille, 1809 | Long legged flies | 83 | Species | Taxom |
| Drepanidae Meyrick, 1895 | Drepanids | 1 | Species | Taxom |
| Drosophilidae Rondani, 1856 | Fruit flies | 62 | Species | Taxom |
| Dryopidae Billberg, 1820 | Long toed water beetle | 2 | Species | Taxom |
| Dynastidae (MacLeay, 1819) | Horn beetles | 1 | Species | Taxom |
| Dytiscidae Leach, 1815 | Diving beetles | 29 | Species | Taxom |
| Ectobiidae (Brunner von ..., 1865) | Wood cockroaches | 1 | Species | Taxom |
| Elachistidae Bruand, 1851 | Elachistid moths | 13 | Species | Taxom |
| Elateridae Leach, 1815 | Click Beetle | 110 | Species | Taxom |
| Elipsocidae Pearman, 1936 | Damp Barklice | 1 | Species | Taxom |
| Elmidae Curtis, 1830 | Drive beetles | 5 | Species | Taxom |
| Embiidae Burmeister, 1839 | | 4 | Species | Taxom |
| Empididae Latreille, 1809 | Balloon flies | 37 | Species | Taxom |
| Encyrtidae Walker, 1837 | Encyrtid wasps | 7 | Species | Taxom |
| Endomychidae Leach, 1815 | False Ladybirds | 16 | Species | Taxom |
| Eneopteridae (Saussure, 1893) | Bush cricket | 4 | Species | Taxom |
| Ephydridae Zetterstedt, 1837 | Brine flies | 28 | Species | Taxom |
| Epipsocidae | Elliptical bark louse | 7 | Species | Taxom |
| Erebidae Leach, 1815 | Erebid Moths | 484 | Species | Taxom |
| Erotylidae Latreille, 1802 | Pleasing Fungus Beetle | 6 | Species | Taxom |
| Eucharitidae Latreille, 1809 | Eucharitid wasp | 6 | Species | Taxom |
| Eucnemidae Eschscholtz, 1829 | Click Beetles | 1 | Species | Taxom |
| Eulophidae Westwood, 1829 | Eulophid wasps | 10 | Species | Taxom |
| Eumastacidae Burr, 1898 | Matchstick grasshoppers | 17 | Species | Taxom |
| Eupelmidae Walker, 1833 | Eupelmid wasps | 11 | Species | Taxom |
| Eurytomidae Walker, 1832 | Eurytomid wasps | 3 | Species | Taxom |
| Euteliidae Grote, 1882 | Euteliid Moths | 3 | Species | Taxom |
| Evaniidae Latreille, 1802 | Ensign wasp | 3 | Species | Taxom |
| Fanniidae Schnabl & Dz..., 1911 | Latrine flies | 12 | Species | Taxom |
| Figitidae Thomson, 1862 | Figitid wasps | 1 | Species | Taxom |
| Flatidae Spinola, 1839 | Flatid planthoppers | 3 | Species | Taxom |
| Formicidae Latreille, 1809 | Ant | 649 | Species | Taxom |
| Fulgoridae Latreille, 1807 | Fulgorid Planthopper | 28 | Species | Taxom |
| Gelastocoridae Kirkaldy, 1897 | Toad bug | 0 | Species | Taxom |
| Gelechiidae Stainton, 1854 | Gelechiid moths | 13 | Species | Taxom |
| Geocoridae Baerensprung, 1860 | Big-eyed Bugs | 5 | Species | Taxom |
| Geometridae Leach, 1815 | Cankerworm moths | 346 | Species | Taxom |
| Geotrupidae Latreille, 1802 | Dor beetles | 21 | Species | Taxom |
| Gerridae Leach, 1815 | Jesus bugs | 1 | Species | Taxom |
| Glaresidae Kolbe, 1905 | Enigmatic scarab beetle | 1 | Species | Taxom |
| Glossosomatidae Wallengren, 1891 | Little Black Caddisflies | 12 | Species | Taxom |
| Glyphipterigidae Stainton, 1854 | Glyphipterigid moths | 7 | Species | Taxom |
| Gomphidae Rambur, 1842 | Club-tailed dragonflies | 13 | Species | Taxom |
| Gracillariidae Stainton, 1854 | Blotch leaf miner moths | 1 | Species | Taxom |
| Gripopterygidae Enderlein, 1909 | | 2 | Species | Taxom |
| Gryllacrididae Blanchard, 1845 | Camel Crickets | 3 | Species | Taxom |
| Gryllidae Bolivar, 1878 | Crickets | 5 | Species | Taxom |
| Gryllotalpidae Saussure, 1870 | Mole cricket | 10 | Species | Taxom |
| Gyrinidae Latreille, 1802 | Whirligig beetle | 9 | Species | Taxom |
| Gyropidae Kellogg, 1896 | | 4 | Species | Taxom |
| Halictidae Thomson, 1869 | Flower bees | 62 | Species | Taxom |
| Hedylidae Guenée, 1857 | American Butterfly Moths | 3 | Species | Taxom |
| Helicopsychidae Ulmer, 1912 | Snail Case caddisflies | 0 | Species | Taxom |
| Hemerobiidae Latreille, 1802 | Brown Lacewing | 2 | Species | Taxom |
| Hepialidae Stephens, 1829 | Ghost Moths | 5 | Species | Taxom |
| Heptapsogasteridae (Carriker, 1936) | | 2 | Species | Taxom |
| Hesperiidae Latreille, 1809 | Indet. Skipper | 560 | Species | Taxom |
| Heteroceridae MacLeay, 1825 | Mud beetles | 13 | Species | Taxom |
| Heteronemiidae Rehn, J. A. G., 1904 | | 1 | Species | Taxom |
| Heterothripidae Bagnall, 1912 | | 1 | Species | Taxom |
| Hippoboscidae Samouelle, 1819 | Keds | 16 | Species | Taxom |
| Histeridae Gyllenhal, 1808 | Clown beetle | 137 | Species | Taxom |
| Hoplopleuridae Ewing, 1929 | | 4 | Species | Taxom |
| Hybosoridae Erichson, 1847 | Pill scarab beetles | 34 | Species | Taxom |
| Hybotidae Meigen, 1820 | Dance flies | 20 | Species | Taxom |
| Hydraenidae Mulsant, 1844 | Cascade Beetles | 10 | Species | Taxom |
| Hydrobiosidae Ulmer, 1905 | | 8 | Species | Taxom |
| Hydrometridae Billberg, 1820 | Marsh treader | 1 | Species | Taxom |
| Hydrophilidae Latreille, 1802 | Silver Water Beetles | 111 | Species | Taxom |
| Hydropsychidae Curtis, 1835 | Net Spinning caddisflies | 9 | Species | Taxom |
| Hydroptilidae Stephens, 1836 | Micro caddisflies | 1 | Species | Taxom |
| Hymenopodidae Giglio-Tos, 1919 | Flower mimic mantises | 2 | Species | Taxom |
| Ichneumonidae Latreille, 1802 | Ichneumon flies | 50 | Species | Taxom |
| Inbiomyiidae Buck, 2006 | | 1 | Species | Taxom |
| Ischnopsyllidae Wahlgren, 1907 | Bat fleas | 1 | Species | Taxom |
| Isostictidae Fraser, 1955 | Narrow-wings | 1 | Species | Taxom |
| Issidae Spinola, 1839 | Issid planthoppers | 7 | Species | Taxom |
| Kalotermitidae Froggatt, 1897 | Dampwood termites | 3 | Species | Taxom |
| Keroplatidae Rondani, 1856 | Fungus gnats | 3 | Species | Taxom |
| Lachesillidae Pearman, 1936 | Fateful Barklice | 6 | Species | Taxom |
| Lacturidae Heppner, 1995 | Australian burnet moths | 1 | Species | Taxom |
| Lampyridae Latreille, 1817 | Fireflies | 9 | Species | Taxom |
| Largidae Amyot and Se..., 1843 | Bordered plant bugs | 5 | Species | Taxom |
| Lasiocampidae Harris, 1841 | Eggar Moths | 21 | Species | Taxom |
| Latridiidae Erichson, 1842 | Minute brown scavenger beetle | 7 | Species | Taxom |
| Lauxaniidae Macquart, 1835 | Beach flies | 19 | Species | Taxom |
| Lecithoceridae Le Marchand, 1947 | Long-horned moths | 1 | Species | Taxom |
| Leiodidae Fleming, 1821 | Round fungus beetles | 26 | Species | Taxom |
| Leptoceridae Leach, 1815 | Long Horned caddisflies | 18 | Species | Taxom |
| Leptohyphidae Landa & Soldán, 1985 | Little Stout Crawler Mayflies | 2 | Species | Taxom |
| Leptophlebiidae Banks, 1900 | Leptophlebiids | 1 | Species | Taxom |
| Leptopsyllidae Rothschild &..., 1915 | Bird fleas | 1 | Species | Taxom |
| Lestidae Calvert, 1901 | Spread-winged damselflies | 3 | Species | Taxom |
| Leucospidae Fabricius, 1775 | Leucospid wasps | 3 | Species | Taxom |
| Libellulidae Rambur, 1842 | Chasers | 46 | Species | Taxom |
| Limacodidae Duponchel, 1845 | Cup moths | 7 | Species | Taxom |
| Limnephilidae Kolenati, 1848 | Northern caddisflies | 1 | Species | Taxom |
| Limnichidae Erichson, 1846 | Minute marsh loving beetle | 14 | Species | Taxom |
| Limoniidae (Speiser, 1909) | Craneflies | 9 | Species | Taxom |
| Liturgusidae Giglio-Tos, 1919 | | 3 | Species | Taxom |
| Liviidae Low, 1879 | | 2 | Species | Taxom |
| Lonchaeidae Loew, 1861 | Lance Flies | 8 | Species | Taxom |
| Lucanidae Latreille, 1804 | Stag Beetle | 39 | Species | Taxom |
| Lutrochidae Kasap & Crowson, 1975 | Robust marsh loving beetle | 1 | Species | Taxom |
| Lycaenidae Leach, 1815 | And blues | 215 | Species | Taxom |
| Lycidae Laporte, 1836 | Lycid beetles | 1 | Species | Taxom |
| Lygaeidae Schilling, 1829 | Chinch bugs | 24 | Species | Taxom |
| Lymexylidae Fleming, 1821 | Ship-timber beetle | 1 | Species | Taxom |
| Lyonetiidae Stainton, 1854 | Lyonet Moths | 1 | Species | Taxom |
| Mantidae Burmeister, 1838 | Mantids | 23 | Species | Taxom |
| Mantispidae Leach, 1815 | Mantid lacewings | 5 | Species | Taxom |
| Mantoididae Giglio-Tos, 1927 | | 2 | Species | Taxom |
| Mauroniscidae Majer, 1995 | Mauroniscid Beetles | 3 | Species | Taxom |
| Megachilidae Schenk, 1860 | And Resin Bees | 105 | Species | Taxom |
| Megalopodidae Latreille, 1802 | Megalopodid Leaf Beetles | 2 | Species | Taxom |
| Megapodagrionidae Tillyard, 1917 | Flatwing | 8 | Species | Taxom |
| Meloidae Gyllenhal, 1810 | Blister Beetle | 28 | Species | Taxom |
| Melyridae Leach, 1815 | Malachite Beetles | 0 | Species | Taxom |
| Membracidae Germar, 1821 | Horned Treehoppers | 108 | Species | Taxom |
| Menoponidae Mjöberg, 1910 | Bird lice | 38 | Species | Taxom |
| Micronectidae Jaczewski, 1924 | Pygmy water boatmen | 1 | Species | Taxom |
| Micropezidae Illiger, 1798 | Stilt Flies | 50 | Species | Taxom |
| Milichiidae Schiner, 1862 | Filth flies | 19 | Species | Taxom |
| Mimallonidae Burmeister, 1878 | Mimallonid Moths | 3 | Species | Taxom |
| Miridae Hahn, 1831 | Capsid bugs | 116 | Species | Taxom |
| Monomachidae Ashmead, 1902 | Monomachid wasps | 3 | Species | Taxom |
| Monophlebidae Signoret, 1875 | Giant scale | 2 | Species | Taxom |
| Mordellidae Latreille, 1802 | Pintail beetles | 3 | Species | Taxom |
| Muscidae Latreille, 1802 | Face flies | 101 | Species | Taxom |
| Mutillidae André, 1907 | Cow ant | 12 | Species | Taxom |
| Mycetophilidae Newman, 1834 | Fungus Gnat | 22 | Species | Taxom |
| Mycteridae Blanchard, 1845 | Mycterid beetles | 7 | Species | Taxom |
| Mydidae Bezzi, 1903 | Mydas flies | 3 | Species | Taxom |
| Mymaridae Haliday, 1833 | Fairflies | 1 | Species | Taxom |
| Myrmeleontidae Latreille, 1802 | Ant lions | 11 | Species | Taxom |
| Nabidae Costa, 1852 | Damsel bugs | 1 | Species | Taxom |
| Naucoridae Leach, 1815 | Creeping water bug | 6 | Species | Taxom |
| Nemestrinidae Macquart, 1834 | Tangle-veined flies | 0 | Species | Taxom |
| Nemopteridae Rambur, 1842 | Spoonwings | 1 | Species | Taxom |
| Nepidae Latreille, 1802 | Back-swimmer Water-boatmen | 2 | Species | Taxom |
| Nepticulidae Stainton, 1854 | Leaf miners | 8 | Species | Taxom |
| Neriidae Hendel, 1916 | Banana stalk flies | 10 | Species | Taxom |
| Nitidulidae Latreille, 1802 | Nitidules | 5 | Species | Taxom |
| Noctuidae Latreille, 1809 | Armyworms | 105 | Species | Taxom |
| Nogodinidae Melichar, 1898 | | 7 | Species | Taxom |
| Nolidae Hampson, 1894 | Hatted Caterpillars | 29 | Species | Taxom |
| Nosodendridae Erichson, 1846 | Nosodendrid beetles | 1 | Species | Taxom |
| Noteridae C. G. Thomson, 1860 | Burrowing water beetle | 7 | Species | Taxom |
| Notodontidae Stephens, 1829 | Bag Shelter Moths | 117 | Species | Taxom |
| Notonectidae Latreille, 1802 | Back Swimmers | 0 | Species | Taxom |
| Nymphalidae Rafinesque, 1815 | Admirals | 1162 | Species | Taxom |
| Ochodaeidae Mulsant & Rey, 1870 | Sand-loving scarab beetle | 1 | Species | Taxom |
| Odontoceridae Wallengren, 1891 | Mortarjoint Casemaker Caddisflies | 0 | Species | Taxom |
| Oecophoridae Bruand, 1851 | Concealer Moths | 4 | Species | Taxom |
| Oestridae Leach, 1815 | Bot flies | 1 | Species | Taxom |
| Ommexechidae Bolivar, 1884 | | 10 | Species | Taxom |
| Orsodacnidae Thomson, 1859 | Orsodacnid Leaf Beetles | 1 | Species | Taxom |
| Ortheziidae Green, 1896 | Ensign coccids | 4 | Species | Taxom |
| Otitidae (Macquart, 1835) | Picture-winged flies | 70 | Species | Taxom |
| Pachygronthidae Stål, 1865 | | 3 | Species | Taxom |
| Pamphiliidae Cameron, 1890 | Leaf-rolling sawflies | 1 | Species | Taxom |
| Pantophthalmidae Williston, 1906 | Timber flies | 7 | Species | Taxom |
| Papilionidae Latreille, 1802 | Apollos | 129 | Species | Taxom |
| Paragryllidae (Desutter-Gra..., 1987) | | 1 | Species | Taxom |
| Passalidae Leach, 1815 | Bess beetle | 55 | Species | Taxom |
| Pelecinidae Haliday, 1839 | Ancestral And Modern Pelecinid Wasps | 1 | Species | Taxom |
| Pentatomidae Leach, 1815 | Lesser shield bugs | 53 | Species | Taxom |
| Pergidae Rohwer, 1911 | Pergid flies | 6 | Species | Taxom |
| Perilampidae Latreille, 1809 | Perilampid waps | 4 | Species | Taxom |
| Peripsocidae Roesler, 1944 | Stout Barklice | 2 | Species | Taxom |
| Periscelididae Oldenberg, 1914 | Periscelidid Flies | 1 | Species | Taxom |
| Perlidae (Latreille, 1802) | Common stoneflies | 37 | Species | Taxom |
| Personidae Gray, 1854 | | 1 | Species | Taxom |
| Phalangopsidae (Chopard, 1949) | Spider cricket | 12 | Species | Taxom |
| Phasmatidae Roberts, 1944 | Walking sticks | 3 | Species | Taxom |
| Phengodidae LeConte, 1861 | Glow-worms | 14 | Species | Taxom |
| Philopotamidae Stephens, 1829 | Finger Net caddisflies | 17 | Species | Taxom |
| Philopteridae Burmeister, 1830 | | 144 | Species | Taxom |
| Philotarsidae Pearman, 1936 | Loving Barklice | 1 | Species | Taxom |
| Phlaeothripidae Uzel, 1895 | Thrips | 1 | Species | Taxom |
| Phoridae Curtis, 1833 | Coffin Flies | 99 | Species | Taxom |
| Pieridae Duponchel, 1835 | And Sulphurs | 165 | Species | Taxom |
| Pipunculidae Walker, 1834 | Big headed flies | 5 | Species | Taxom |
| Platygastridae Haliday, 1833 | Platygastrid wasps | 1 | Species | Taxom |
| Platystictidae Laidlaw, 1924 | Forest Damselflies | 1 | Species | Taxom |
| Platystomatidae Schiner, 1862 | Picture-winged flies | 5 | Species | Taxom |
| Podoscirtidae Saussure, 1878 | | 15 | Species | Taxom |
| Polycentropodidae Ulmer, 1903 | Tube Maker Caddisflies | 4 | Species | Taxom |
| Polymitarcyidae Banks, 1900 | Pale Burrower Mayflies | 2 | Species | Taxom |
| Polyplacidae Fahrenholz, 1912 | Spiny rat lice | 2 | Species | Taxom |
| Polythoridae Munz, 1919 | Bannerwings | 7 | Species | Taxom |
| Pompilidae Latreille, 1805 | Pompilid wasps | 54 | Species | Taxom |
| Prisopodidae Brunner von ..., 1893 | | 4 | Species | Taxom |
| Prodoxidae Riley, 1881 | Yucca Moths | 3 | Species | Taxom |
| Proscopiidae Serville, 1838 | Jumping sticks | 19 | Species | Taxom |
| Prostomidae C. G. Thomson, 1859 | Jugular-horned beetle | 1 | Species | Taxom |
| Protoneuridae Tillyard, 1917 | Bambootails | 2 | Species | Taxom |
| Psephenidae Lacordaire, 1854 | Water pennies | 1 | Species | Taxom |
| Pseudococcidae Heymons, 1915 | Mealy Bugs | 14 | Species | Taxom |
| Pseudophasmatidae Kirby, 1896 | Striped Walkingsticks | 20 | Species | Taxom |
| Pseudophyllodromiidae Hebard, 1929 | | 7 | Species | Taxom |
| Pseudostigmatidae Tillyard, 1917 | Forest giants | 1 | Species | Taxom |
| Psocidae Samouelle, 1819 | Common bark louse | 6 | Species | Taxom |
| Psychidae Boisduval, 1828 | Bagmoths | 2 | Species | Taxom |
| Psychodidae Newman, 1834 | Drain flies | 90 | Species | Taxom |
| Psyllidae Latreille, 1807 | Jumping plant lice | 14 | Species | Taxom |
| Pteromalidae Dalman, 1820 | Pteromalid wasps | 12 | Species | Taxom |
| Pterophoridae Zeller, 1841 | Plume Moths | 39 | Species | Taxom |
| Ptiliidae Heer, 1843 | Feather-wing beetles | 28 | Species | Taxom |
| Ptilodactylidae Laporte, 1836 | Ptilodactylid beetles | 16 | Species | Taxom |
| Ptiloneuridae Eertmoed, 1973 | | 3 | Species | Taxom |
| Ptinidae Latreille, 1802 | Death-watch and Spider Beetles | 2 | Species | Taxom |
| Pulicidae Billberg, 1820 | Cat fleas | 2 | Species | Taxom |
| Pygidicranidae (Verhoeff, 1902) | | 2 | Species | Taxom |
| Pyralidae Latreille, 1802 | Flour Moths | 42 | Species | Taxom |
| Pyrgomorphidae Brunner von ..., 1874 | Bushlocusts | 1 | Species | Taxom |
| Pyrgotidae Schiner, 1868 | Light Flies | 3 | Species | Taxom |
| Pyrrhocoridae Dohrn, 1859 | Cotton stainers | 3 | Species | Taxom |
| Reduviidae Latreille, 1807 | Assassin and thread-legged bugs | 62 | Species | Taxom |
| Rhagionidae Latreille, 1802 | Snipe flies | 3 | Species | Taxom |
| Rhinotermitidae Froggatt, 1897 | Subterranean termites | 6 | Species | Taxom |
| Rhopalidae Amyot & Serv..., 1843 | Rhopalid Bugs | 13 | Species | Taxom |
| Rhopalopsyllidae Oudemans, 1909 | Marsupial fleas | 12 | Species | Taxom |
| Rhopalosomatidae Ashmead, 1896 | Rhopalosomatid wasps | 1 | Species | Taxom |
| Rhynchitidae Gistel, 1848 | Leaf-rolling weevils | 3 | Species | Taxom |
| Rhyparochromidae Amyot & Serv..., 1843 | Dirt-colored Seed Bugs | 22 | Species | Taxom |
| Richardidae Snow, 1896 | Richardid flies | 25 | Species | Taxom |
| Richardiidae (Snow, 1896) | Picture-winged flies | 17 | Species | Taxom |
| Ricinidae Neumann, 1890 | | 3 | Species | Taxom |
| Riodinidae Grote, 1895 | Metalmark Butterflies | 244 | Species | Taxom |
| Ripiphoridae Gemminger & ..., 1870 | Rhipiphoridae | 0 | Species | Taxom |
| Ripipterygidae Ander, 1939 | Mud crickets | 5 | Species | Taxom |
| Romaleidae Brunner von ..., 1893 | Lubber grasshopper | 43 | Species | Taxom |
| Ropalomeridae Linder, 1930 | Ropalomerid flies | 6 | Species | Taxom |
| Rutelidae (MacLeay, 1819) | | 30 | Species | Taxom |
| Saldidae Amyot and Se..., 1843 | Shore bug | 1 | Species | Taxom |
| Salpingidae Leach, 1815 | Narrow-waisted bark beetle | 1 | Species | Taxom |
| Sarcophagidae Macquart, 1834 | Flesh flies | 19 | Species | Taxom |
| Saturniidae Boisduval, 1837 | And Giant Silk Moths | 100 | Species | Taxom |
| Scarabaeidae Latreille, 1802 | Dung beetles | 1031 | Species | Taxom |
| Scathophagidae Robineau-Des..., 1830 | Dung flies | 1 | Species | Taxom |
| Scelembiidae Ross, 2001 | | 2 | Species | Taxom |
| Scelionidae Haliday, 1839 | Scelionid wasps | 8 | Species | Taxom |
| Sciaridae Billberg, 1820 | Black fungus gnats | 4 | Species | Taxom |
| Sciomyzidae Fallen, 1820 | Marsh Flies | 5 | Species | Taxom |
| Scirtidae Fleming, 1821 | Marsh Beetle | 1 | Species | Taxom |
| Scoliidae Leach, 1815 | Mammoth wasps | 0 | Species | Taxom |
| Scolytidae (Latreille, 1807) | Ambrosia | 5 | Species | Taxom |
| Scutelleridae Leach, 1815 | Jewel bugs | 4 | Species | Taxom |
| Scydmaenidae (Leach, 1815) | Ant-like stone beetles | 59 | Species | Taxom |
| Sematuridae Guenée, 1858 | American Swallowtail Moths | 1 | Species | Taxom |
| Sepsidae Walker, 1833 | Black scavenger flies | 3 | Species | Taxom |
| Sesiidae Boisduval, 1828 | Clear Wings | 6 | Species | Taxom |
| Sialidae Leach, 1815 | Alderflies | 2 | Species | Taxom |
| Silphidae Latreille, 1807 | Burying And Carrion Beetles | 7 | Species | Taxom |
| Silvanidae Kirby, 1837 | Flat bark beetles | 4 | Species | Taxom |
| Simuliidae Newman, 1834 | Black flies | 11 | Species | Taxom |
| Siricidae Billberg, 1820 | Horntail | 1 | Species | Taxom |
| Sphaeroceridae Macquart, 1835 | Dung flies | 31 | Species | Taxom |
| Sphecidae Latreille, 1802 | Digger & Sand wasps | 7 | Species | Taxom |
| Sphingidae Latreille, 1802 | Hawk Moths | 243 | Species | Taxom |
| Spiralizoridae Kocarek, Ho..., 2020 | | 1 | Species | Taxom |
| Spongiphoridae Verhoeff, 1902 | Little Earwigs | 2 | Species | Taxom |
| Spurostigmatidae Casasola Gon..., 2006 | | 1 | Species | Taxom |
| Staphylinidae Lameere, 1900 | Rove beetles | 747 | Species | Taxom |
| Stenopelmatidae Burmeister, 1838 | Bulldog Raspy Crickets | 2 | Species | Taxom |
| Stephanidae Leach, 1815 | Crown wasp | 5 | Species | Taxom |
| Stephanocircidae Wagner, 1928 | | 2 | Species | Taxom |
| Stratiomyidae Latreille, 1802 | Soldier flies | 30 | Species | Taxom |
| Streblidae (Kolenati, 1863) | Bat flies | 9 | Species | Taxom |
| Syntomidae (Herrich Scha..., 1846) | | 4 | Species | Taxom |
| Syringogastridae Prado, 1969 | | 1 | Species | Taxom |
| Syrphidae Latreille, 1802 | Drone flies | 95 | Species | Taxom |
| Tabanidae Latreille, 1802 | Breeze flies | 95 | Species | Taxom |
| Tachinidae (Robineau-Des..., 1830) | Bristle Flies | 31 | Species | Taxom |
| Tanypezidae Rondani, 1856 | Stretched-foot flies | 2 | Species | Taxom |
| Tenebrionidae Latreille, 1802 | Darkling Beetle | 20 | Species | Taxom |
| Tenthredinidae Latreille, 1804 | Common sawflies | 1 | Species | Taxom |
| Tephritidae Newman, 1834 | Fruit flies | 91 | Species | Taxom |
| Termitidae Latreille, 1802 | Higher termites | 98 | Species | Taxom |
| Tessaratomidae Stål, 1864 | Giant shield bug | 1 | Species | Taxom |
| Tethinidae (Hendel, 1916) | Tethinid flies | 12 | Species | Taxom |
| Tetratomidae Billberg, 1820 | Polypore fungus beetle | 0 | Species | Taxom |
| Tetrigidae Rambur, 1838 | Groundhoppers | 24 | Species | Taxom |
| Tettigoniidae Krauss, 1902 | Bush crickets | 138 | Species | Taxom |
| Therevidae Newman, 1834 | Stiletto flies | 6 | Species | Taxom |
| Thespidae Giglio-Tos, 1919 | | 13 | Species | Taxom |
| Throscidae Laporte, 1840 | False metallic wood-boring beetles | 1 | Species | Taxom |
| Thyreocoridae Amyot and Se..., 1843 | Black bugs | 3 | Species | Taxom |
| Thyrididae Herrich-Schä..., 1846 | Picture Winged Leaf Moths | 5 | Species | Taxom |
| Tineidae Latreille, 1810 | & Allies | 15 | Species | Taxom |
| Tingidae Laporte, 1832 | Lace bug | 52 | Species | Taxom |
| Tiphiidae Leach, 1815 | Flower wasps | 1 | Species | Taxom |
| Tipulidae Latreille, 1802 | Crane Flies | 287 | Species | Taxom |
| Tischeriidae Spuler, 1898 | Lyonetiid moths | 1 | Species | Taxom |
| Tortricidae Latreille, 1803 | Bell Moths | 100 | Species | Taxom |
| Torymidae Walker, 1833 | Apple seed chalcids | 0 | Species | Taxom |
| Trichodectidae Kellogg, 1896 | | 3 | Species | Taxom |
| Trichogrammatidae Haliday, 1851 | Trichogrammatid wasps | 2 | Species | Taxom |
| Trigonidiidae (Saussure, 1870) | And Ground Crickets | 10 | Species | Taxom |
| Trimenoponidae Harrison, 1916 | | 3 | Species | Taxom |
| Triozidae Löw, 1879 | Jumping plant lice | 3 | Species | Taxom |
| Trogidae (MacLeay, 1819) | Gnawer beetles | 14 | Species | Taxom |
| Trogossitidae Latreille, 1802 | Bark gnawing beetle | 4 | Species | Taxom |
| Tropiduchidae Stål, 1866 | Tropiduchid Planthoppers | 1 | Species | Taxom |
| Ulidiidae Macquart, 1835 | Picture-winged Flies | 4 | Species | Taxom |
| Uraniidae Blanchard, 1845 | Swallowtail Moths | 1 | Species | Taxom |
| Veliidae Amyot & Serv..., 1843 | Broad-shouldered bugs | 8 | Species | Taxom |
| Vesperidae Mulsant, 1839 | Vesperid longicorn beetles | 3 | Species | Taxom |
| Vespidae Leach, 1815 | And Allies | 103 | Species | Taxom |
| Xenidae Pohl & Beutel, 2005 | | 1 | Species | Taxom |
| Xylomyidae Verrall, 1901 | Wood soldier flies | 1 | Species | Taxom |
| Xylophagidae Fallen, 1810 | Awl-flies | 0 | Species | Taxom |
| Xyloryctidae Meyrick, 1890 | Flower Moths | 1 | Species | Taxom |
| Yponomeutidae Stephens, 1829 | Ermine Moths | 2 | Species | Taxom |
| Zopheridae Solier, 1834 | Cylindrical bark beetles | 11 | Species | Taxom |
| Zorotypidae Silvestri, 1913 | Angel insects | 1 | Species | Taxom |
| Zygaenidae Latreille, 1809 | Burnet Forester | 3 | Species | Taxom |
