| Acanthosomatidae Signoret, 1864 | Acanthosomatids | 7 | Species | Taxom |
| Acrididae MacLeay, 1819 | Grasshoppers and locusts | 52 | Species | Taxom |
| Adelidae Bruand, 1851 | Adelid Moths | 22 | Species | Taxom |
| Aderidae Winkler, 1927 | Ant-like leaf beetles | 6 | Species | Taxom |
| Aetalionidae Spinola, 1850 | Treehopper | 1 | Species | Taxom |
| Agromyzidae Fallen, 1823 | Leaf miner flies | 16 | Species | Taxom |
| Agyrtidae Thomson, 1859 | Primitive carrion beetles | 4 | Species | Taxom |
| Alucitidae Leach, 1815 | Many Plumed Moths | 5 | Species | Taxom |
| Alydidae Amyot & Serv..., 1843 | Bean bugs | 3 | Species | Taxom |
| Ampulicidae Shuckard, 1840 | Ampulicid wasps | 2 | Species | Taxom |
| Andrenidae Webster, 1913 | Andrenid bees | 123 | Species | Taxom |
| Anthicidae Latreille, 1819 | Ant beetles | 19 | Species | Taxom |
| Anthocoridae Fieber, 1837 | Flower bugs | 39 | Species | Taxom |
| Anthomyiidae Robineau-Des..., 1830 | Anthomyiid flies | 1 | Species | Taxom |
| Anthracoptilidae Handlirsch, 1922 | | 2 | Species | Taxom |
| Anthribidae Billberg, 1820 | Fungus Weevil | 22 | Species | Taxom |
| Apachelytridae Carpenter & ..., 1964 | | 1 | Species | Taxom |
| Aphalaridae Löw, 1879 | | 3 | Species | Taxom |
| Aphelinidae Thomson, 1876 | Aphelinid wasps | 35 | Species | Taxom |
| Aphelocheiridae Fieber, 1851 | | 1 | Species | Taxom |
| Aphrophoridae Evans, 1946 | Froghoppers | 1 | Species | Taxom |
| Apidae Latreille, 1802 | Bumble bees | 153 | Species | Taxom |
| Aradidae Spinola, 1837 | Flat bug | 17 | Species | Taxom |
| Archelytridae Carpenter, 1933 | | 2 | Species | Taxom |
| Archimylacridae Handlirsch, 1906 | | 6 | Species | Taxom |
| Arctiidae Leach, 1815 | Footman moths | 4 | Species | Taxom |
| Argidae Konow, 1890 | Argid flies | 21 | Species | Taxom |
| Artheneidae Stål, 1872 | | 2 | Species | Taxom |
| Asilidae Latreille, 1802 | Assassin flies | 5 | Species | Taxom |
| Attelabidae Billberg, 1820 | Leaf Rolling Weevil | 31 | Species | Taxom |
| Aulacidae Shuckard, 1842 | Aulacid wasps | 3 | Species | Taxom |
| Autostichidae Le Marchand, 1947 | Autostichid Moths | 4 | Species | Taxom |
| Batrachedridae Heinemann & ..., 1876 | Batrachedrid Moths | 2 | Species | Taxom |
| Beraeidae Wallengren, 1891 | Small eastern caddisflies | 1 | Species | Taxom |
| Berytidae Fieber, 1851 | Stilt bug | 12 | Species | Taxom |
| Bethylidae Halliday, 1839 | Bethylid wasps | 7 | Species | Taxom |
| Bibionidae Fleming, 1821 | Bibionid flies | 2 | Species | Taxom |
| Biphyllidae LeConte, 1861 | Biphyllid beetles | 1 | Species | Taxom |
| Bittacidae Handlirsch, 1906 | Hanging scorpionflies | 0 | Species | Taxom |
| Blasticotomidae Thomson, 1871 | Blasticotomid sawflies | 1 | Species | Taxom |
| Blattellidae (Karny, 1908) | German Cockroach | 1 | Species | Taxom |
| Blattidae Stephens, 1829 | American cockroaches | 3 | Species | Taxom |
| Blattinopsidae Bolton, 1925 | | 1 | Species | Taxom |
| Blissidae Stål, 1862 | Chinch Bugs | 3 | Species | Taxom |
| Bombycidae Latreille, 1802 | Lappet moths | 5 | Species | Taxom |
| Bombyliidae Latreille, 1802 | Bee Flies | 8 | Species | Taxom |
| Bostrichidae Latreille, 1802 | Auger beetles | 11 | Species | Taxom |
| Bothrideridae Erichson, 1845 | Cocoon-forming beetles | 1 | Species | Taxom |
| Brachodidae Agenjo, 1966 | Little Bear Moths | 1 | Species | Taxom |
| Brachypteridae (Erichson, 1845) | Short-winged Flower Beetles | 11 | Species | Taxom |
| Braconidae Latreille, 1829 | Braconid wasps | 329 | Species | Taxom |
| Brentidae Billberg, 1820 | Brenthidae | 121 | Species | Taxom |
| Buprestidae Leach, 1815 | Flat-headed wood-borers | 104 | Species | Taxom |
| Byrrhidae Latreille, 1804 | Moss beetles | 19 | Species | Taxom |
| Byturidae Jacquelin du..., 1858 | Fruit worms | 2 | Species | Taxom |
| Calliphoridae Brauer & Ber..., 1889 | Blow flies | 3 | Species | Taxom |
| Calophyidae Vondracek, 1957 | | 1 | Species | Taxom |
| Camptoneuritidae Martynov, 1930 | | 1 | Species | Taxom |
| Cantharidae Imhoff, 1856 | Cantharids | 79 | Species | Taxom |
| Carabidae Latreille, 1802 | Carabid beetles | 564 | Species | Taxom |
| Carposinidae Walsingham, 1907 | Carposinid moths | 1 | Species | Taxom |
| Cecidomyiidae Newman, 1834 | Cecidomyidae | 6 | Species | Taxom |
| Cephidae Newman, 1834 | Cephids | 12 | Species | Taxom |
| Cerambycidae Latreille, 1802 | Long Horn beetles | 214 | Species | Taxom |
| Ceraphronidae Haliday, 1833 | Ceraphronid wasps | 3 | Species | Taxom |
| Ceratocombidae Fieber, 1861 | | 1 | Species | Taxom |
| Ceratophyllidae Dampf, 1908 | Bird Fleas | 7 | Species | Taxom |
| Ceratopogonidae Newman, 1834 | Biting midge | 1 | Species | Taxom |
| Cercopidae Leach, 1815 | Froghopper | 5 | Species | Taxom |
| Cerylonidae Billberg, 1820 | Cerylid Kingfishers | 7 | Species | Taxom |
| Chalcididae Latreille, 1817 | Chalcidid wasps | 28 | Species | Taxom |
| Chamaemyiidae Hendel, 1910 | Aphid flies | 1 | Species | Taxom |
| Chaoboridae Newman, 1834 | Phantom midge | 1 | Species | Taxom |
| Chironomidae Erichson, 1842 | Chironomids | 1 | Species | Taxom |
| Choreutidae Stainton, 1854 | Choreuitid Moths | 6 | Species | Taxom |
| Chrysididae Latreille, 1802 | Chrysidid wasps | 75 | Species | Taxom |
| Chrysomelidae Latreille, 1802 | Casebearers | 518 | Species | Taxom |
| Cicadellidae Latreille, 1802 | Cicadellids | 48 | Species | Taxom |
| Cicadidae Westwood, 1840 | Cicada | 4 | Species | Taxom |
| Ciidae Leach, 1819 | Minute tree fungus beetles | 32 | Species | Taxom |
| Cimbicidae Kirby, 1837 | Cimbicid sawflies | 14 | Species | Taxom |
| Cimicidae Latreille, 1802 | Bat bugs | 4 | Species | Taxom |
| Clambidae Fischer, 1821 | Fringe-winged beetles | 7 | Species | Taxom |
| Cleridae Latreille, 1802 | Checkered Beetle | 21 | Species | Taxom |
| Clusiidae Schönherr, 1840 | Clusiid flies | 2 | Species | Taxom |
| Cnemidolestidae Handlirsch, 1906 | | 2 | Species | Taxom |
| Coccinellidae Latreille, 1807 | Coccinelles | 82 | Species | Taxom |
| Coleophoridae Hübner, 1825 | Case moths | 182 | Species | Taxom |
| Colletidae Lepeletier, 1841 | Colletid bees | 40 | Species | Taxom |
| Coreidae Leach, 1815 | Broad-headed bugs | 19 | Species | Taxom |
| Corixidae Leach, 1815 | Lesser Water-Boatman | 24 | Species | Taxom |
| Corylophidae LeConte, 1852 | Hooded beetles | 7 | Species | Taxom |
| Cosmopterigidae Heinemann & ..., 1876 | Cosmet Moths | 21 | Species | Taxom |
| Cossidae Leach, 1815 | Borers | 6 | Species | Taxom |
| Crabronidae Latreille, 1802 | Bee Wolves | 203 | Species | Taxom |
| Crambidae Latreille, 1810 | Crambid Snout Moths | 166 | Species | Taxom |
| Cryptophagidae Kirby, 1937 | Mould beetles | 93 | Species | Taxom |
| Ctenophthalmidae Rothschild, 1915 | | 3 | Species | Taxom |
| Cucujidae Latreille, 1802 | Flat bark beetles | 14 | Species | Taxom |
| Curculionidae Latreille, 1802 | Ambrosia beetles | 843 | Species | Taxom |
| Cydnidae Billberg, 1820 | Burrower bugs | 18 | Species | Taxom |
| Cymbopsidae Kukalová, 1965 | | 1 | Species | Taxom |
| Cymidae Baerensprung, 1860 | | 4 | Species | Taxom |
| Cynipidae Latreille, 1802 | Cynipid gall wasps | 95 | Species | Taxom |
| Dalceridae Dyar, 1898 | Dalcerid moths | 1 | Species | Taxom |
| Dascillidae Guérin-Ménev..., 1843 | Orchid beetles | 1 | Species | Taxom |
| Delphacidae Leach, 1815 | Delphacid planthoppers | 3 | Species | Taxom |
| Derbidae Spinola, 1839 | Derbid planthoppers | 1 | Species | Taxom |
| Dermestidae Hope, 1840 | Carpet beetles | 50 | Species | Taxom |
| Diapriidae Latreille, 1796 | Diapriid wasps | 105 | Species | Taxom |
| Diaspididae Maskell, 1878 | Armored scale insects | 4 | Species | Taxom |
| Dictyopharidae Spinola, 1839 | Dictyopharid Planthoppers | 0 | Species | Taxom |
| Diprionidae Rohwer, 1911 | Conifer sawflies | 14 | Species | Taxom |
| Dipsocoridae Dohrn, 1859 | Dipsocorids | 3 | Species | Taxom |
| Dolichopodidae Latreille, 1809 | Long legged flies | 1 | Species | Taxom |
| Doubraviidae Aristov, 2015 | | 1 | Species | Taxom |
| Douglasiidae Heinemann & ..., 1876 | Douglas Moths | 5 | Species | Taxom |
| Drepanidae Meyrick, 1895 | Drepanids | 16 | Species | Taxom |
| Drosophilidae Rondani, 1856 | Fruit flies | 3 | Species | Taxom |
| Dryinidae Haliday, 1840 | Dryinid wasps | 8 | Species | Taxom |
| Dryopidae Billberg, 1820 | Long toed water beetle | 9 | Species | Taxom |
| Dytiscidae Leach, 1815 | Diving beetles | 129 | Species | Taxom |
| Ecnomidae Ulmer, 1903 | | 1 | Species | Taxom |
| Ectobiidae (Brunner von ..., 1865) | Wood cockroaches | 5 | Species | Taxom |
| Elachistidae Bruand, 1851 | Elachistid moths | 156 | Species | Taxom |
| Elateridae Leach, 1815 | Click Beetle | 152 | Species | Taxom |
| Elmidae Curtis, 1830 | Drive beetles | 15 | Species | Taxom |
| Empididae Latreille, 1809 | Balloon flies | 2 | Species | Taxom |
| Encyrtidae Walker, 1837 | Encyrtid wasps | 186 | Species | Taxom |
| Endomychidae Leach, 1815 | False Ladybirds | 10 | Species | Taxom |
| Endromidae Boisduval, 1828 | Glory Moths | 1 | Species | Taxom |
| Epermeniidae Spuler, 1910 | Epermeniid moths | 23 | Species | Taxom |
| Epideigmatidae Handlirsch, 1911 | | 1 | Species | Taxom |
| Epipygidae Hamilton, 2001 | | 0 | Species | Taxom |
| Erebidae Leach, 1815 | Erebid Moths | 311 | Species | Taxom |
| Eriocraniidae Rebel, 1901 | Eriocraniid moths | 7 | Species | Taxom |
| Erotylidae Latreille, 1802 | Pleasing Fungus Beetle | 12 | Species | Taxom |
| Eucharitidae Latreille, 1809 | Eucharitid wasp | 3 | Species | Taxom |
| Eucinetidae Lacordaire, 1857 | Plate-thigh beetle | 1 | Species | Taxom |
| Eucnemidae Eschscholtz, 1829 | Click Beetles | 13 | Species | Taxom |
| Eulophidae Westwood, 1829 | Eulophid wasps | 150 | Species | Taxom |
| Eupelmidae Walker, 1833 | Eupelmid wasps | 21 | Species | Taxom |
| Euryptilonidae Martynov, 1940 | | 12 | Species | Taxom |
| Eurytomidae Walker, 1832 | Eurytomid wasps | 35 | Species | Taxom |
| Evaniidae Latreille, 1802 | Ensign wasp | 2 | Species | Taxom |
| Figitidae Thomson, 1862 | Figitid wasps | 24 | Species | Taxom |
| Forficulidae Stephens, 1829 | Common Earwig | 5 | Species | Taxom |
| Formicidae Latreille, 1809 | Ant | 92 | Species | Taxom |
| Gasteruptiidae Ashmead, 1900 | Carrot Wasps | 15 | Species | Taxom |
| Gelechiidae Stainton, 1854 | Gelechiid moths | 274 | Species | Taxom |
| Geocoridae Baerensprung, 1860 | Big-eyed Bugs | 4 | Species | Taxom |
| Geometridae Leach, 1815 | Cankerworm moths | 559 | Species | Taxom |
| Geotrupidae Latreille, 1802 | Dor beetles | 9 | Species | Taxom |
| Gerridae Leach, 1815 | Jesus bugs | 12 | Species | Taxom |
| Glyphipterigidae Stainton, 1854 | Glyphipterigid moths | 8 | Species | Taxom |
| Gracillariidae Stainton, 1854 | Blotch leaf miner moths | 116 | Species | Taxom |
| Gryllidae Bolivar, 1878 | Crickets | 7 | Species | Taxom |
| Gryllotalpidae Saussure, 1870 | Mole cricket | 1 | Species | Taxom |
| Gyrinidae Latreille, 1802 | Whirligig beetle | 11 | Species | Taxom |
| Halictidae Thomson, 1869 | Flower bees | 118 | Species | Taxom |
| Haliplidae Aubé, 1836 | Crawling Water Beetle | 14 | Species | Taxom |
| Havlatiidae Kukalová, 1964 | | 2 | Species | Taxom |
| Hebridae Amyot and Se..., 1843 | Velvet water bug | 2 | Species | Taxom |
| Heliodinidae Heinemann & ..., 1876 | Heliodinid moths | 1 | Species | Taxom |
| Heliozelidae Heinemann & ..., 1876 | Leaf miners | 6 | Species | Taxom |
| Heloridae Förster, 1856 | Helorid wasps | 4 | Species | Taxom |
| Hemerobiidae Latreille, 1802 | Brown Lacewing | 1 | Species | Taxom |
| Hepialidae Stephens, 1829 | Ghost Moths | 5 | Species | Taxom |
| Hesperiidae Latreille, 1809 | Indet. Skipper | 28 | Species | Taxom |
| Heteroceridae MacLeay, 1825 | Mud beetles | 10 | Species | Taxom |
| Heterogastridae Stål, 1872 | | 5 | Species | Taxom |
| Hippoboscidae Samouelle, 1819 | Keds | 0 | Species | Taxom |
| Histeridae Gyllenhal, 1808 | Clown beetle | 97 | Species | Taxom |
| Hybotidae Meigen, 1820 | Dance flies | 1 | Species | Taxom |
| Hydraenidae Mulsant, 1844 | Cascade Beetles | 34 | Species | Taxom |
| Hydrobiosidae Ulmer, 1905 | | 4 | Species | Taxom |
| Hydrometridae Billberg, 1820 | Marsh treader | 2 | Species | Taxom |
| Hydrophilidae Latreille, 1802 | Silver Water Beetles | 85 | Species | Taxom |
| Hydropsychidae Curtis, 1835 | Net Spinning caddisflies | 1 | Species | Taxom |
| Hydroptilidae Stephens, 1836 | Micro caddisflies | 3 | Species | Taxom |
| Hystrichopsyllidae Tiraboschi, 1904 | Insectivore fleas | 1 | Species | Taxom |
| Ibaliidae Thomson, 1862 | Ibaliid wasps | 2 | Species | Taxom |
| Ichneumonidae Latreille, 1802 | Ichneumon flies | 1220 | Species | Taxom |
| Ideliidae (Zalessky, 1929) | | 1 | Species | Taxom |
| Incurvariidae Spuler, 1898 | Fairy moths | 8 | Species | Taxom |
| Ischnopsyllidae Wahlgren, 1907 | Bat fleas | 1 | Species | Taxom |
| Kaltanidae Martynova, 1958 | | 1 | Species | Taxom |
| Labiduridae Verhoeff, 1902 | Long-horned earwig | 1 | Species | Taxom |
| Labiidae (Burr, 1909) | Little earwig | 1 | Species | Taxom |
| Lampyridae Latreille, 1817 | Fireflies | 3 | Species | Taxom |
| Lasiocampidae Harris, 1841 | Eggar Moths | 34 | Species | Taxom |
| Latridiidae Erichson, 1842 | Minute brown scavenger beetle | 45 | Species | Taxom |
| Lauxaniidae Macquart, 1835 | Beach flies | 1 | Species | Taxom |
| Lecithoceridae Le Marchand, 1947 | Long-horned moths | 1 | Species | Taxom |
| Leiodidae Fleming, 1821 | Round fungus beetles | 143 | Species | Taxom |
| Lemoniidae Hampson, 1918 | Autumn Silkworm Moths | 2 | Species | Taxom |
| Lepidostomatidae Ulmer, 1903 | Bizarre Caddisflies | 1 | Species | Taxom |
| Leptoceridae Leach, 1815 | Long Horned caddisflies | 12 | Species | Taxom |
| Leptopodidae Amyot and Se..., 1843 | Spiny shore bugs | 1 | Species | Taxom |
| Leptopsyllidae Rothschild &..., 1915 | Bird fleas | 1 | Species | Taxom |
| Leucospidae Fabricius, 1775 | Leucospid wasps | 2 | Species | Taxom |
| Limacodidae Duponchel, 1845 | Cup moths | 7 | Species | Taxom |
| Limnephilidae Kolenati, 1848 | Northern caddisflies | 17 | Species | Taxom |
| Limnichidae Erichson, 1846 | Minute marsh loving beetle | 3 | Species | Taxom |
| Limoniidae (Speiser, 1909) | Craneflies | 2 | Species | Taxom |
| Liomopteridae Sellards, 1909 | | 9 | Species | Taxom |
| Liviidae Low, 1879 | | 1 | Species | Taxom |
| Lucanidae Latreille, 1804 | Stag Beetle | 7 | Species | Taxom |
| Lycaenidae Leach, 1815 | And blues | 54 | Species | Taxom |
| Lycidae Laporte, 1836 | Lycid beetles | 11 | Species | Taxom |
| Lygaeidae Schilling, 1829 | Chinch bugs | 24 | Species | Taxom |
| Lymexylidae Fleming, 1821 | Ship-timber beetle | 2 | Species | Taxom |
| Lyonetiidae Stainton, 1854 | Lyonet Moths | 34 | Species | Taxom |
| Mantidae Burmeister, 1838 | Mantids | 1 | Species | Taxom |
| Megachilidae Schenk, 1860 | And Resin Bees | 104 | Species | Taxom |
| Megalodontesidae Konow, 1897 | | 4 | Species | Taxom |
| Megalopodidae Latreille, 1802 | Megalopodid Leaf Beetles | 5 | Species | Taxom |
| Megalopygidae Herrich-Schä..., 1855 | Crinkled Flannel Moths | 5 | Species | Taxom |
| Megaspilidae Ashmead, 1893 | Megaspilid wasps | 5 | Species | Taxom |
| Melandryidae Leach, 1815 | False Darkling Beetle | 27 | Species | Taxom |
| Melittidae Schenk, 1860 | Melittid bees | 10 | Species | Taxom |
| Meloidae Gyllenhal, 1810 | Blister Beetle | 24 | Species | Taxom |
| Melyridae Leach, 1815 | Malachite Beetles | 51 | Species | Taxom |
| Membracidae Germar, 1821 | Horned Treehoppers | 3 | Species | Taxom |
| Mesoveliidae Douglas and ..., 1867 | Pond treaders | 1 | Species | Taxom |
| Micronectidae Jaczewski, 1924 | Pygmy water boatmen | 4 | Species | Taxom |
| Micropezidae Illiger, 1798 | Stilt Flies | 0 | Species | Taxom |
| Microphysidae Dohrn, 1859 | Microphysid bugs | 6 | Species | Taxom |
| Micropterigidae Herrich-Schä..., 1855 | Mandibulate Archaic Moths | 9 | Species | Taxom |
| Mimallonidae Burmeister, 1878 | Mimallonid Moths | 2 | Species | Taxom |
| Miridae Hahn, 1831 | Capsid bugs | 305 | Species | Taxom |
| Monotomidae Laporte, 1840 | Minute Clubbed Beetles | 22 | Species | Taxom |
| Mordellidae Latreille, 1802 | Pintail beetles | 49 | Species | Taxom |
| Muscidae Latreille, 1802 | Face flies | 1 | Species | Taxom |
| Mutillidae André, 1907 | Cow ant | 18 | Species | Taxom |
| Mycetophagidae Leach, 1815 | Hairy fungus beetle | 13 | Species | Taxom |
| Mycetophilidae Newman, 1834 | Fungus Gnat | 3 | Species | Taxom |
| Mycteridae Blanchard, 1845 | Mycterid beetles | 1 | Species | Taxom |
| Mylacridae Scudder, 1886 | | 1 | Species | Taxom |
| Mymaridae Haliday, 1833 | Fairflies | 1 | Species | Taxom |
| Myrmecophilidae Saussure, 1874 | Ant cricket | 2 | Species | Taxom |
| Myrmeleontidae Latreille, 1802 | Ant lions | 3 | Species | Taxom |
| Mythicomyiidae Melander, 1902 | Micro Bee Flies | 1 | Species | Taxom |
| Nabidae Costa, 1852 | Damsel bugs | 17 | Species | Taxom |
| Naucoridae Leach, 1815 | Creeping water bug | 1 | Species | Taxom |
| Nemonychidae Bedel, 1882 | Nemonychid weevils | 3 | Species | Taxom |
| Nepidae Latreille, 1802 | Back-swimmer Water-boatmen | 2 | Species | Taxom |
| Nepticulidae Stainton, 1854 | Leaf miners | 133 | Species | Taxom |
| Neriidae Hendel, 1916 | Banana stalk flies | 0 | Species | Taxom |
| Nitidulidae Latreille, 1802 | Nitidules | 123 | Species | Taxom |
| Noctuidae Latreille, 1809 | Armyworms | 471 | Species | Taxom |
| Nogodinidae Melichar, 1898 | | 1 | Species | Taxom |
| Nolidae Hampson, 1894 | Hatted Caterpillars | 20 | Species | Taxom |
| Noteridae C. G. Thomson, 1860 | Burrowing water beetle | 2 | Species | Taxom |
| Notodontidae Stephens, 1829 | Bag Shelter Moths | 69 | Species | Taxom |
| Notonectidae Latreille, 1802 | Back Swimmers | 6 | Species | Taxom |
| Nymphalidae Rafinesque, 1815 | Admirals | 86 | Species | Taxom |
| Oborocoleidae Kukalová, 1968 | | 2 | Species | Taxom |
| Ochodaeidae Mulsant & Rey, 1870 | Sand-loving scarab beetle | 3 | Species | Taxom |
| Oecanthidae (Blanchard, 1845) | Tree cricket | 1 | Species | Taxom |
| Oecophoridae Bruand, 1851 | Concealer Moths | 52 | Species | Taxom |
| Oedemeridae Latreille, 1810 | False Blister Beetle | 25 | Species | Taxom |
| Opostegidae Meyrick, 1893 | Opostegid moths | 4 | Species | Taxom |
| Ormyridae Förster, 1856 | Armyrids | 7 | Species | Taxom |
| Orsodacnidae Thomson, 1859 | Orsodacnid Leaf Beetles | 3 | Species | Taxom |
| Orussidae Newman, 1834 | Orussid wasps | 1 | Species | Taxom |
| Otitidae (Macquart, 1835) | Picture-winged flies | 0 | Species | Taxom |
| Oxycarenidae Stål, 1862 | | 10 | Species | Taxom |
| Palaeomanteidae Handlirsch, 1906 | | 21 | Species | Taxom |
| Pamphiliidae Cameron, 1890 | Leaf-rolling sawflies | 33 | Species | Taxom |
| Panorpidae Linnaeus, 1758 | Common scorpionflies | 1 | Species | Taxom |
| Papilionidae Latreille, 1802 | Apollos | 10 | Species | Taxom |
| Pelecinidae Haliday, 1839 | Ancestral And Modern Pelecinid Wasps | 1 | Species | Taxom |
| Pentatomidae Leach, 1815 | Lesser shield bugs | 52 | Species | Taxom |
| Perilampidae Latreille, 1809 | Perilampid waps | 14 | Species | Taxom |
| Permosialidae Martynov, 1928 | | 1 | Species | Taxom |
| Phalacridae Leach, 1815 | Shining flower beetles | 17 | Species | Taxom |
| Philopteridae Burmeister, 1830 | | 1 | Species | Taxom |
| Phloeostichidae Reitter, 1911 | | 1 | Species | Taxom |
| Phloiophilidae Kiesenwetter, 1863 | | 1 | Species | Taxom |
| Phoridae Curtis, 1833 | Coffin Flies | 8 | Species | Taxom |
| Phryganeidae (Leach, 1815) | Giant casemaker | 2 | Species | Taxom |
| Pieridae Duponchel, 1835 | And Sulphurs | 23 | Species | Taxom |
| Piesmatidae Amyot & Audi..., 1843 | Ash grey leaf bug | 6 | Species | Taxom |
| Pipunculidae Walker, 1834 | Big headed flies | 1 | Species | Taxom |
| Planelytridae Kukalová, 1965 | | 1 | Species | Taxom |
| Plataspididae (Dallas, 1851) | | 1 | Species | Taxom |
| Platygastridae Haliday, 1833 | Platygastrid wasps | 15 | Species | Taxom |
| Pleidae Fieber, 1817 | Pigmy backswimmers | 1 | Species | Taxom |
| Plutellidae Guenée, 1845 | Diamond-back moths | 14 | Species | Taxom |
| Polycentropodidae Ulmer, 1903 | Tube Maker Caddisflies | 4 | Species | Taxom |
| Pompilidae Latreille, 1805 | Pompilid wasps | 85 | Species | Taxom |
| Proctotrupidae Latreille, 1802 | Proctotrupid wasps | 18 | Species | Taxom |
| Prodoxidae Riley, 1881 | Yucca Moths | 8 | Species | Taxom |
| Prostomidae C. G. Thomson, 1859 | Jugular-horned beetle | 1 | Species | Taxom |
| Protembiidae Tillyard, 1937 | | 1 | Species | Taxom |
| Protomeropidae Tillyard, 1926 | | 5 | Species | Taxom |
| Psephenidae Lacordaire, 1854 | Water pennies | 1 | Species | Taxom |
| Psilidae Macquart, 1835 | Carrot flies | 11 | Species | Taxom |
| Psychidae Boisduval, 1828 | Bagmoths | 37 | Species | Taxom |
| Psychodidae Newman, 1834 | Drain flies | 4 | Species | Taxom |
| Psychomyiidae Walker, 1852 | Net Tube Caddisflies | 1 | Species | Taxom |
| Psyllidae Latreille, 1807 | Jumping plant lice | 8 | Species | Taxom |
| Pteridomylacridae Handlirsch, 1906 | | 1 | Species | Taxom |
| Pteromalidae Dalman, 1820 | Pteromalid wasps | 183 | Species | Taxom |
| Pterophoridae Zeller, 1841 | Plume Moths | 52 | Species | Taxom |
| Ptiliidae Heer, 1843 | Feather-wing beetles | 36 | Species | Taxom |
| Ptinidae Latreille, 1802 | Death-watch and Spider Beetles | 84 | Species | Taxom |
| Pygiopsyllidae Wagner, 1939 | | 1 | Species | Taxom |
| Pyralidae Latreille, 1802 | Flour Moths | 103 | Species | Taxom |
| Pyrochroidae Latreille, 1807 | Cardinal beetles | 3 | Species | Taxom |
| Pyrrhocoridae Dohrn, 1859 | Cotton stainers | 2 | Species | Taxom |
| Pythidae Solier, 1834 | Dead log bark beetles | 2 | Species | Taxom |
| Raphidiidae Latreille, 1810 | Raphidiid snakeflies | 2 | Species | Taxom |
| Reduviidae Latreille, 1807 | Assassin and thread-legged bugs | 11 | Species | Taxom |
| Rhaphidophoridae Walker, 1869 | And Cave Weta | 2 | Species | Taxom |
| Rhinophoridae Robineau-Des..., 1863 | Woodlouse flies | 2 | Species | Taxom |
| Rhopalidae Amyot & Serv..., 1843 | Rhopalid Bugs | 18 | Species | Taxom |
| Rhyparochromidae Amyot & Serv..., 1843 | Dirt-colored Seed Bugs | 81 | Species | Taxom |
| Richardiidae (Snow, 1896) | Picture-winged flies | 1 | Species | Taxom |
| Riodinidae Grote, 1895 | Metalmark Butterflies | 6 | Species | Taxom |
| Ripiphoridae Gemminger & ..., 1870 | Rhipiphoridae | 2 | Species | Taxom |
| Roeslerstammiidae Bruand, 1850 | Double-eye moths | 2 | Species | Taxom |
| Saldidae Amyot and Se..., 1843 | Shore bug | 16 | Species | Taxom |
| Salpingidae Leach, 1815 | Narrow-waisted bark beetle | 12 | Species | Taxom |
| Sapygidae Latreille, 1810 | Club-horned wasps | 4 | Species | Taxom |
| Sarcophagidae Macquart, 1834 | Flesh flies | 3 | Species | Taxom |
| Saturniidae Boisduval, 1837 | And Giant Silk Moths | 15 | Species | Taxom |
| Scarabaeidae Latreille, 1802 | Dung beetles | 162 | Species | Taxom |
| Scathophagidae Robineau-Des..., 1830 | Dung flies | 2 | Species | Taxom |
| Scelionidae Haliday, 1839 | Scelionid wasps | 17 | Species | Taxom |
| Schreckensteiniidae Fletcher, 1929 | Bristle Legged Moths | 1 | Species | Taxom |
| Sciaridae Billberg, 1820 | Black fungus gnats | 0 | Species | Taxom |
| Sciomyzidae Fallen, 1820 | Marsh Flies | 1 | Species | Taxom |
| Scirtidae Fleming, 1821 | Marsh Beetle | 17 | Species | Taxom |
| Scoliidae Leach, 1815 | Mammoth wasps | 4 | Species | Taxom |
| Scolytidae (Latreille, 1807) | Ambrosia | 2 | Species | Taxom |
| Scraptiidae Mulsant, 1856 | Antlike leaf beetles | 13 | Species | Taxom |
| Scutelleridae Leach, 1815 | Jewel bugs | 9 | Species | Taxom |
| Scydmaenidae (Leach, 1815) | Ant-like stone beetles | 38 | Species | Taxom |
| Scythrididae Rebel, 1901 | Flower Moths | 1 | Species | Taxom |
| Sepsidae Walker, 1833 | Black scavenger flies | 1 | Species | Taxom |
| Sesiidae Boisduval, 1828 | Clear Wings | 40 | Species | Taxom |
| Signiphoridae Howard, 1894 | Signiphorid waps | 2 | Species | Taxom |
| Silphidae Latreille, 1807 | Burying And Carrion Beetles | 26 | Species | Taxom |
| Silvanidae Kirby, 1837 | Flat bark beetles | 11 | Species | Taxom |
| Siricidae Billberg, 1820 | Horntail | 7 | Species | Taxom |
| Skaliciidae Kukalová, 1964 | | 1 | Species | Taxom |
| Sphaeritidae Schuckard, 1839 | False clown beetle | 1 | Species | Taxom |
| Sphaeriusidae Erichson, 1845 | Minute Bog Beetles | 1 | Species | Taxom |
| Sphaeroceridae Macquart, 1835 | Dung flies | 3 | Species | Taxom |
| Sphecidae Latreille, 1802 | Digger & Sand wasps | 12 | Species | Taxom |
| Sphindidae Jacquelin du..., 1860 | Cryptic slime mold beetle | 2 | Species | Taxom |
| Sphingidae Latreille, 1802 | Hawk Moths | 24 | Species | Taxom |
| Staphylinidae Lameere, 1900 | Rove beetles | 1253 | Species | Taxom |
| Stephanidae Leach, 1815 | Crown wasp | 1 | Species | Taxom |
| Stratiomyidae Latreille, 1802 | Soldier flies | 4 | Species | Taxom |
| Stylopidae Kirby, 1813 | Strepsiptera | 8 | Species | Taxom |
| Sylvabestiidae Aristov, 2000 | | 5 | Species | Taxom |
| Sylvaphlebiidae Martynov, 1940 | | 3 | Species | Taxom |
| Syrphidae Latreille, 1802 | Drone flies | 72 | Species | Taxom |
| Tabanidae Latreille, 1802 | Breeze flies | 1 | Species | Taxom |
| Tachinidae (Robineau-Des..., 1830) | Bristle Flies | 11 | Species | Taxom |
| Tenebrionidae Latreille, 1802 | Darkling Beetle | 93 | Species | Taxom |
| Tenthredinidae Latreille, 1804 | Common sawflies | 375 | Species | Taxom |
| Tephritidae Newman, 1834 | Fruit flies | 6 | Species | Taxom |
| Teredidae Seidlitz, 1888 | | 4 | Species | Taxom |
| Tetracampidae Förster, 1856 | Tetracampid wasps | 6 | Species | Taxom |
| Tetratomidae Billberg, 1820 | Polypore fungus beetle | 6 | Species | Taxom |
| Tetrigidae Rambur, 1838 | Groundhoppers | 7 | Species | Taxom |
| Tettigometridae Germar, 1821 | | 1 | Species | Taxom |
| Tettigoniidae Krauss, 1902 | Bush crickets | 39 | Species | Taxom |
| Thripidae Stevens, 1829 | Common thrips | 1 | Species | Taxom |
| Throscidae Laporte, 1840 | False metallic wood-boring beetles | 5 | Species | Taxom |
| Thynnidae Shuckard, 1841 | Thynnid Wasps | 1 | Species | Taxom |
| Thyreocoridae Amyot and Se..., 1843 | Black bugs | 2 | Species | Taxom |
| Thyrididae Herrich-Schä..., 1846 | Picture Winged Leaf Moths | 1 | Species | Taxom |
| Tineidae Latreille, 1810 | & Allies | 73 | Species | Taxom |
| Tingidae Laporte, 1832 | Lace bug | 62 | Species | Taxom |
| Tiphiidae Leach, 1815 | Flower wasps | 5 | Species | Taxom |
| Tipulidae Latreille, 1802 | Crane Flies | 38 | Species | Taxom |
| Tischeriidae Spuler, 1898 | Lyonetiid moths | 7 | Species | Taxom |
| Tortricidae Latreille, 1803 | Bell Moths | 450 | Species | Taxom |
| Torymidae Walker, 1833 | Apple seed chalcids | 66 | Species | Taxom |
| Trichoceridae Rondani, 1841 | Winter Crane Flies | 3 | Species | Taxom |
| Trichogrammatidae Haliday, 1851 | Trichogrammatid wasps | 9 | Species | Taxom |
| Tridactylidae Saussure, 1874 | Pygmy mole cricket | 2 | Species | Taxom |
| Trigonalidae (Cresson, 1887) | Trigonalid sawflies | 1 | Species | Taxom |
| Trigonalyidae | | 0 | Species | Taxom |
| Trigonidiidae (Saussure, 1870) | And Ground Crickets | 3 | Species | Taxom |
| Triozidae Löw, 1879 | Jumping plant lice | 4 | Species | Taxom |
| Trogidae (MacLeay, 1819) | Gnawer beetles | 7 | Species | Taxom |
| Trogossitidae Latreille, 1802 | Bark gnawing beetle | 8 | Species | Taxom |
| Tshekardocoleidae Rohdendorf, 1944 | | 10 | Species | Taxom |
| Uraniidae Blanchard, 1845 | Swallowtail Moths | 1 | Species | Taxom |
| Urodidae Kyrki, 1984 | False Burnet Moths | 1 | Species | Taxom |
| Veliidae Amyot & Serv..., 1843 | Broad-shouldered bugs | 4 | Species | Taxom |
| Vespidae Leach, 1815 | And Allies | 72 | Species | Taxom |
| Xiphydriidae Leach, 1819 | Wood wasps | 2 | Species | Taxom |
| Xyelidae Newman, 1835 | Sawfly | 5 | Species | Taxom |
| Xylophagidae Fallen, 1810 | Awl-flies | 1 | Species | Taxom |
| Xyloryctidae Meyrick, 1890 | Flower Moths | 24 | Species | Taxom |
| Yponomeutidae Stephens, 1829 | Ermine Moths | 49 | Species | Taxom |
| Ypsolophidae Guenée, 1845 | Ypsolophid Moths | 20 | Species | Taxom |
| Zopheridae Solier, 1834 | Cylindrical bark beetles | 18 | Species | Taxom |
| Zygaenidae Latreille, 1809 | Burnet Forester | 22 | Species | Taxom |
