| Acanthosomatidae Signoret, 1864 | Acanthosomatids | 3 | Species | Taxom |
| Acartophthalmidae Czerny, 1928 | Acartophthalmid flies | 1 | Species | Taxom |
| Achilidae Stål, 1866 | Achilid Planthoppers | 3 | Species | Taxom |
| Acrididae MacLeay, 1819 | Grasshoppers and locusts | 29 | Species | Taxom |
| Acroceridae Leach, 1815 | Hunch-back flies | 2 | Species | Taxom |
| Adelgidae Heinze, 1962 | Adelgids | 5 | Species | Taxom |
| Adelidae Bruand, 1851 | Adelid Moths | 2 | Species | Taxom |
| Aeolothripidae Uzel, 1895 | Banded thrips | 1 | Species | Taxom |
| Agromyzidae Fallen, 1823 | Leaf miner flies | 75 | Species | Taxom |
| Agyrtidae Thomson, 1859 | Primitive carrion beetles | 4 | Species | Taxom |
| Aleyrodidae Westwood, 1840 | Whiteflies | 1 | Species | Taxom |
| Alucitidae Leach, 1815 | Many Plumed Moths | 1 | Species | Taxom |
| Alydidae Amyot & Serv..., 1843 | Bean bugs | 1 | Species | Taxom |
| Amphizoidae LeConte, 1853 | Stout-stream beetles | 1 | Species | Taxom |
| Andrenidae Webster, 1913 | Andrenid bees | 19 | Species | Taxom |
| Anisopodidae Knab, 1912 | Window Midges | 2 | Species | Taxom |
| Anthicidae Latreille, 1819 | Ant beetles | 4 | Species | Taxom |
| Anthocoridae Fieber, 1837 | Flower bugs | 8 | Species | Taxom |
| Anthomyiidae Robineau-Des..., 1830 | Anthomyiid flies | 267 | Species | Taxom |
| Anthomyzidae Czerny, 1903 | Anthomyzid flies | 10 | Species | Taxom |
| Anthribidae Billberg, 1820 | Fungus Weevil | 8 | Species | Taxom |
| Apataniidae Wallengren, 1886 | Early Smoky Wing Sedges | 6 | Species | Taxom |
| Aphalaridae Löw, 1879 | | 13 | Species | Taxom |
| Aphelinidae Thomson, 1876 | Aphelinid wasps | 1 | Species | Taxom |
| Aphididae Latreille, 1802 | Aphids | 113 | Species | Taxom |
| Aphrophoridae Evans, 1946 | Froghoppers | 5 | Species | Taxom |
| Apidae Latreille, 1802 | Bumble bees | 57 | Species | Taxom |
| Aradidae Spinola, 1837 | Flat bug | 17 | Species | Taxom |
| Argidae Konow, 1890 | Argid flies | 3 | Species | Taxom |
| Aschiphasmatidae Brunner von ..., 1893 | | 1 | Species | Taxom |
| Asilidae Latreille, 1802 | Assassin flies | 14 | Species | Taxom |
| Asteiidae Rondani, 1856 | Asteiid Flies | 1 | Species | Taxom |
| Aulacidae Shuckard, 1842 | Aulacid wasps | 3 | Species | Taxom |
| Aulacigastridae Wollaston, 1864 | Aulacigastrid flies | 1 | Species | Taxom |
| Axymyiidae Rohdendorf, 1946 | Axymyiidae flies | 1 | Species | Taxom |
| Batrachedridae Heinemann & ..., 1876 | Batrachedrid Moths | 1 | Species | Taxom |
| Belidae Schönherr, 1826 | Belid Beetle | 1 | Species | Taxom |
| Beraeidae Wallengren, 1891 | Small eastern caddisflies | 0 | Species | Taxom |
| Bethylidae Halliday, 1839 | Bethylid wasps | 1 | Species | Taxom |
| Bibionidae Fleming, 1821 | Bibionid flies | 14 | Species | Taxom |
| Blaberidae Saussure, 1864 | Blaberids | 1 | Species | Taxom |
| Blephariceridae Loew, 1861 | Mountain midges | 0 | Species | Taxom |
| Bombycidae Latreille, 1802 | Lappet moths | 1 | Species | Taxom |
| Bombyliidae Latreille, 1802 | Bee Flies | 7 | Species | Taxom |
| Boreidae Latreille, 1816 | Snow fleas | 4 | Species | Taxom |
| Bostrichidae Latreille, 1802 | Auger beetles | 7 | Species | Taxom |
| Brachycentridae Ulmer, 1903 | Humpless Casemaker Caddisflies | 2 | Species | Taxom |
| Brachypteridae (Erichson, 1845) | Short-winged Flower Beetles | 3 | Species | Taxom |
| Braconidae Latreille, 1829 | Braconid wasps | 146 | Species | Taxom |
| Brentidae Billberg, 1820 | Brenthidae | 5 | Species | Taxom |
| Buprestidae Leach, 1815 | Flat-headed wood-borers | 24 | Species | Taxom |
| Byrrhidae Latreille, 1804 | Moss beetles | 22 | Species | Taxom |
| Caeciliusidae Kolbe, 1880 | Lizard Barklice | 6 | Species | Taxom |
| Calamoceratidae Ulmer, 1905 | | 1 | Species | Taxom |
| Calliphoridae Brauer & Ber..., 1889 | Blow flies | 39 | Species | Taxom |
| Cantharidae Imhoff, 1856 | Cantharids | 24 | Species | Taxom |
| Canthyloscelidae Enderlein, 1912 | | 2 | Species | Taxom |
| Capniidae Klapálek, 1905 | Capniid winter stoneflies | 28 | Species | Taxom |
| Carabidae Latreille, 1802 | Carabid beetles | 337 | Species | Taxom |
| Carnidae Newman, 1834 | Bird flies | 3 | Species | Taxom |
| Cecidomyiidae Newman, 1834 | Forest Midges | 17 | Species | Taxom |
| Cerambycidae Latreille, 1802 | Long Horn beetles | 72 | Species | Taxom |
| Ceraphronidae Haliday, 1833 | Ceraphronid wasps | 2 | Species | Taxom |
| Ceratocombidae Fieber, 1861 | | 1 | Species | Taxom |
| Ceratophyllidae Dampf, 1908 | Bird Fleas | 47 | Species | Taxom |
| Ceratopogonidae Newman, 1834 | Biting midge | 54 | Species | Taxom |
| Cerylonidae Billberg, 1820 | Cerylid Kingfishers | 1 | Species | Taxom |
| Chalcididae Latreille, 1817 | Chalcidid wasps | 3 | Species | Taxom |
| Chamaemyiidae Hendel, 1910 | Aphid flies | 5 | Species | Taxom |
| Chaoboridae Newman, 1834 | Phantom midge | 6 | Species | Taxom |
| Chironomidae Erichson, 1842 | Chironomids | 164 | Species | Taxom |
| Chloroperlidae Okamoto, 1912 | Green stoneflies | 28 | Species | Taxom |
| Chloropidae Schoenherr, 1840 | Chloropid flies | 32 | Species | Taxom |
| Choreutidae Stainton, 1854 | Choreuitid Moths | 2 | Species | Taxom |
| Chrysididae Latreille, 1802 | Chrysidid wasps | 4 | Species | Taxom |
| Chrysomelidae Latreille, 1802 | Casebearers | 77 | Species | Taxom |
| Chrysopidae Schneider, 1851 | And Green Lacewings | 5 | Species | Taxom |
| Cicadellidae Latreille, 1802 | Cicadellids | 211 | Species | Taxom |
| Ciidae Leach, 1819 | Minute tree fungus beetles | 12 | Species | Taxom |
| Cimbicidae Kirby, 1837 | Cimbicid sawflies | 4 | Species | Taxom |
| Cimicidae Latreille, 1802 | Bat bugs | 2 | Species | Taxom |
| Cixiidae Spinola, 1839 | Cixid planthoppers | 27 | Species | Taxom |
| Clambidae Fischer, 1821 | Fringe-winged beetles | 1 | Species | Taxom |
| Cleridae Latreille, 1802 | Checkered Beetle | 6 | Species | Taxom |
| Clusiidae Schönherr, 1840 | Clusiid flies | 4 | Species | Taxom |
| Coccidae Stephens, 1829 | Soft scale | 3 | Species | Taxom |
| Coccinellidae Latreille, 1807 | Coccinelles | 27 | Species | Taxom |
| Coelopidae Hendel, 1910 | Kelp Flies | 4 | Species | Taxom |
| Coleophoridae Hübner, 1825 | Case moths | 16 | Species | Taxom |
| Colletidae Lepeletier, 1841 | Colletid bees | 8 | Species | Taxom |
| Coniopterygidae Burmeister, 1839 | Dusty lacewings | 3 | Species | Taxom |
| Conopidae Latreille, 1802 | Thick-headed Flies | 4 | Species | Taxom |
| Copromorphidae Meyrick, 1905 | Fig Borers | 1 | Species | Taxom |
| Coreidae Leach, 1815 | Broad-headed bugs | 4 | Species | Taxom |
| Corixidae Leach, 1815 | Lesser Water-Boatman | 17 | Species | Taxom |
| Corylophidae LeConte, 1852 | Hooded beetles | 2 | Species | Taxom |
| Cosmopterigidae Heinemann & ..., 1876 | Cosmet Moths | 1 | Species | Taxom |
| Crabronidae Latreille, 1802 | Bee Wolves | 37 | Species | Taxom |
| Crambidae Latreille, 1810 | Crambid Snout Moths | 50 | Species | Taxom |
| Cryptophagidae Kirby, 1937 | Mould beetles | 64 | Species | Taxom |
| Ctenophthalmidae Rothschild, 1915 | | 11 | Species | Taxom |
| Cucujidae Latreille, 1802 | Flat bark beetles | 7 | Species | Taxom |
| Culicidae Meigen, 1818 | Mosquito | 36 | Species | Taxom |
| Cupedidae Laporte, 1836 | Cupedids | 1 | Species | Taxom |
| Curculionidae Latreille, 1802 | Ambrosia beetles | 203 | Species | Taxom |
| Cydnidae Billberg, 1820 | Burrower bugs | 2 | Species | Taxom |
| Cynipidae Latreille, 1802 | Cynipid gall wasps | 1 | Species | Taxom |
| Dasydemellidae | Shaggy Psocids | 1 | Species | Taxom |
| Delphacidae Leach, 1815 | Delphacid planthoppers | 29 | Species | Taxom |
| Dermestidae Hope, 1840 | Carpet beetles | 12 | Species | Taxom |
| Derodontidae LeConte, 1861 | Tooth-neck fungus beetles | 4 | Species | Taxom |
| Deuterophlebiidae Edwards, 1922 | Mountain midges | 0 | Species | Taxom |
| Diapheromeridae Rehn & Hebard, 1909 | Diapheromerid Stick Insects | 0 | Species | Taxom |
| Diapriidae Latreille, 1796 | Diapriid wasps | 6 | Species | Taxom |
| Diastatidae Hendel, 1917 | Bog flies | 4 | Species | Taxom |
| Diprionidae Rohwer, 1911 | Conifer sawflies | 2 | Species | Taxom |
| Dixidae Schiner, 1868 | Dixid Midges | 7 | Species | Taxom |
| Dolichopodidae Latreille, 1809 | Long legged flies | 156 | Species | Taxom |
| Douglasiidae Heinemann & ..., 1876 | Douglas Moths | 1 | Species | Taxom |
| Drepanidae Meyrick, 1895 | Drepanids | 7 | Species | Taxom |
| Drosophilidae Rondani, 1856 | Fruit flies | 25 | Species | Taxom |
| Dryinidae Haliday, 1840 | Dryinid wasps | 4 | Species | Taxom |
| Dryomyzidae Schiner, 1862 | Dryomyzid flies | 7 | Species | Taxom |
| Dytiscidae Leach, 1815 | Diving beetles | 126 | Species | Taxom |
| Echinophthiriidae Enderlein, 1904 | | 6 | Species | Taxom |
| Ecnomidae Ulmer, 1903 | | 1 | Species | Taxom |
| Elachistidae Bruand, 1851 | Elachistid moths | 11 | Species | Taxom |
| Elateridae Leach, 1815 | Click Beetle | 88 | Species | Taxom |
| Elenchidae Perkins, 1905 | | 0 | Species | Taxom |
| Elmidae Curtis, 1830 | Drive beetles | 0 | Species | Taxom |
| Empididae Latreille, 1809 | Balloon flies | 91 | Species | Taxom |
| Encyrtidae Walker, 1837 | Encyrtid wasps | 10 | Species | Taxom |
| Endomychidae Leach, 1815 | False Ladybirds | 2 | Species | Taxom |
| Epermeniidae Spuler, 1910 | Epermeniid moths | 2 | Species | Taxom |
| Ephydridae Zetterstedt, 1837 | Brine flies | 95 | Species | Taxom |
| Erebidae Leach, 1815 | Erebid Moths | 67 | Species | Taxom |
| Eriocraniidae Rebel, 1901 | Eriocraniid moths | 2 | Species | Taxom |
| Erotylidae Latreille, 1802 | Pleasing Fungus Beetle | 3 | Species | Taxom |
| Eucharitidae Latreille, 1809 | Eucharitid wasp | 1 | Species | Taxom |
| Eucinetidae Lacordaire, 1857 | Plate-thigh beetle | 3 | Species | Taxom |
| Eucnemidae Eschscholtz, 1829 | Click Beetles | 1 | Species | Taxom |
| Eucoilidae (Thomson, 1862) | | 1 | Species | Taxom |
| Eulophidae Westwood, 1829 | Eulophid wasps | 51 | Species | Taxom |
| Eurytomidae Walker, 1832 | Eurytomid wasps | 5 | Species | Taxom |
| Euteliidae Grote, 1882 | Euteliid Moths | 1 | Species | Taxom |
| Fanniidae Schnabl & Dz..., 1911 | Latrine flies | 49 | Species | Taxom |
| Figitidae Thomson, 1862 | Figitid wasps | 20 | Species | Taxom |
| Flatidae Spinola, 1839 | Flatid planthoppers | 4 | Species | Taxom |
| Formicidae Latreille, 1809 | Ants | 33 | Species | Taxom |
| Gelechiidae Stainton, 1854 | Gelechiid moths | 32 | Species | Taxom |
| Geocoridae Baerensprung, 1860 | Big-eyed Bugs | 2 | Species | Taxom |
| Geometridae Leach, 1815 | Cankerworm moths | 179 | Species | Taxom |
| Gerridae Leach, 1815 | Jesus bugs | 4 | Species | Taxom |
| Glossosomatidae Wallengren, 1891 | Little Black Caddisflies | 4 | Species | Taxom |
| Glyphipterigidae Stainton, 1854 | Glyphipterigid moths | 2 | Species | Taxom |
| Gracillariidae Stainton, 1854 | Blotch leaf miner moths | 13 | Species | Taxom |
| Gyrinidae Latreille, 1802 | Whirligig beetle | 11 | Species | Taxom |
| Halictidae Thomson, 1869 | Flower bees | 17 | Species | Taxom |
| Haliplidae Aubé, 1836 | Crawling Water Beetle | 3 | Species | Taxom |
| Heleomyzidae (Westwood, 1840) | Heleomyzid flies | 43 | Species | Taxom |
| Heloridae Förster, 1856 | Helorid wasps | 1 | Species | Taxom |
| Hemerobiidae Latreille, 1802 | Brown Lacewing | 21 | Species | Taxom |
| Hepialidae Stephens, 1829 | Ghost Moths | 6 | Species | Taxom |
| Hesperiidae Latreille, 1809 | Skipper | 25 | Species | Taxom |
| Hesperinidae Hendel, 1928 | | 1 | Species | Taxom |
| Heteroceridae MacLeay, 1825 | Mud beetles | 4 | Species | Taxom |
| Hilarimorphidae Hendel, 1936 | Hilarimorphid flies | 1 | Species | Taxom |
| Hippoboscidae Samouelle, 1819 | Keds | 2 | Species | Taxom |
| Histeridae Gyllenhal, 1808 | Clown beetle | 6 | Species | Taxom |
| Hoplopleuridae Ewing, 1929 | | 1 | Species | Taxom |
| Hybotidae Meigen, 1820 | Dance flies | 27 | Species | Taxom |
| Hydraenidae Mulsant, 1844 | Cascade Beetles | 5 | Species | Taxom |
| Hydrobiosidae Ulmer, 1905 | | 1 | Species | Taxom |
| Hydrophilidae Latreille, 1802 | Silver Water Beetles | 27 | Species | Taxom |
| Hydropsychidae Curtis, 1835 | Net Spinning caddisflies | 14 | Species | Taxom |
| Hydroptilidae Stephens, 1836 | Micro caddisflies | 23 | Species | Taxom |
| Hymenopodidae Giglio-Tos, 1919 | Flower mimic mantises | 1 | Species | Taxom |
| Hystrichopsyllidae Tiraboschi, 1904 | Insectivore fleas | 2 | Species | Taxom |
| Ibaliidae Thomson, 1862 | Ibaliid wasps | 1 | Species | Taxom |
| Ichneumonidae Latreille, 1802 | Ichneumon flies | 514 | Species | Taxom |
| Ischnopsyllidae Wahlgren, 1907 | Bat fleas | 1 | Species | Taxom |
| Ithonidae Newman, 1838 | Ithonid lacewings | 1 | Species | Taxom |
| Kalotermitidae Froggatt, 1897 | Dampwood termites | 1 | Species | Taxom |
| Keroplatidae Rondani, 1856 | Fungus gnats | 3 | Species | Taxom |
| Kinnaridae Muir, 1925 | Kinnarid Planthoppers | 1 | Species | Taxom |
| Kukaspididae Koteja & Poinar, 2001 | | 1 | Species | Taxom |
| Lachesillidae Pearman, 1936 | Fateful Barklice | 1 | Species | Taxom |
| Laemobothriidae Mjöberg, 1910 | | 1 | Species | Taxom |
| Lasiocampidae Harris, 1841 | Eggar Moths | 6 | Species | Taxom |
| Latridiidae Erichson, 1842 | Minute brown scavenger beetle | 39 | Species | Taxom |
| Lauxaniidae Macquart, 1835 | Beach flies | 19 | Species | Taxom |
| Leiodidae Fleming, 1821 | Round fungus beetles | 70 | Species | Taxom |
| Lemoniidae Hampson, 1918 | Autumn Silkworm Moths | 1 | Species | Taxom |
| Lepidostomatidae Ulmer, 1903 | Bizarre Caddisflies | 3 | Species | Taxom |
| Leptoceridae Leach, 1815 | Long Horned caddisflies | 12 | Species | Taxom |
| Leptopsyllidae Rothschild &..., 1915 | Bird fleas | 6 | Species | Taxom |
| Leuctridae Klapálek, 1905 | Needle Or Willow Stoneflies | 6 | Species | Taxom |
| Limnephilidae Kolenati, 1848 | Northern caddisflies | 87 | Species | Taxom |
| Limoniidae (Speiser, 1909) | Craneflies | 8 | Species | Taxom |
| Linognathidae Webb, 1946 | | 2 | Species | Taxom |
| Liposcelididae Enderlein, 1911 | Booklice | 2 | Species | Taxom |
| Lonchaeidae Loew, 1861 | Lance Flies | 27 | Species | Taxom |
| Lonchopteridae Curtis, 1839 | Pointed-wing flies | 3 | Species | Taxom |
| Lophocoronidae Common, 1973 | Australian Archaic Sun Moths | 1 | Species | Taxom |
| Lucanidae Latreille, 1804 | Stag Beetle | 4 | Species | Taxom |
| Lycaenidae Leach, 1815 | Blue butterflies | 44 | Species | Taxom |
| Lycidae Laporte, 1836 | Lycid beetles | 3 | Species | Taxom |
| Lygaeidae Schilling, 1829 | Chinch bugs | 10 | Species | Taxom |
| Lyonetiidae Stainton, 1854 | Lyonet Moths | 2 | Species | Taxom |
| Megachilidae Schenk, 1860 | And Resin Bees | 30 | Species | Taxom |
| Megalopodidae Latreille, 1802 | Megalopodid Leaf Beetles | 2 | Species | Taxom |
| Megaspilidae Ashmead, 1893 | Megaspilid wasps | 8 | Species | Taxom |
| Melandryidae Leach, 1815 | False Darkling Beetle | 10 | Species | Taxom |
| Meloidae Gyllenhal, 1810 | Blister Beetle | 6 | Species | Taxom |
| Melyridae Leach, 1815 | Malachite Beetles | 3 | Species | Taxom |
| Membracidae Germar, 1821 | Horned Treehoppers | 2 | Species | Taxom |
| Menoponidae Mjöberg, 1910 | Bird lice | 13 | Species | Taxom |
| Mesopsocidae Enderlein, 1903 | Middle Barklice | 1 | Species | Taxom |
| Mesoveliidae Douglas and ..., 1867 | Pond treaders | 1 | Species | Taxom |
| Micropezidae Illiger, 1798 | Stilt Flies | 5 | Species | Taxom |
| Milichiidae Schiner, 1862 | Filth flies | 3 | Species | Taxom |
| Miridae Hahn, 1831 | Capsid bugs | 95 | Species | Taxom |
| Molannidae Wallengren, 1891 | Hood Casemaker Caddisflies | 1 | Species | Taxom |
| Monophlebidae Signoret, 1875 | Giant scale | 1 | Species | Taxom |
| Monotomidae Laporte, 1840 | Minute Clubbed Beetles | 5 | Species | Taxom |
| Mordellidae Latreille, 1802 | Pintail beetles | 2 | Species | Taxom |
| Muscidae Latreille, 1802 | Face flies | 281 | Species | Taxom |
| Mycetophagidae Leach, 1815 | Hairy fungus beetle | 2 | Species | Taxom |
| Mycetophilidae Newman, 1834 | Fungus Gnat | 171 | Species | Taxom |
| Mymaridae Haliday, 1833 | Fairflies | 9 | Species | Taxom |
| Mymarommatidae Debauche, 1948 | False fairy wasp | 5 | Species | Taxom |
| Nabidae Costa, 1852 | Damsel bugs | 6 | Species | Taxom |
| Nemouridae Newman, 1853 | Brown stoneflies | 16 | Species | Taxom |
| Nepticulidae Stainton, 1854 | Leaf miners | 1 | Species | Taxom |
| Nitidulidae Latreille, 1802 | Nitidules | 28 | Species | Taxom |
| Noctuidae Latreille, 1809 | Armyworms | 260 | Species | Taxom |
| Nolidae Hampson, 1894 | Hatted Caterpillars | 2 | Species | Taxom |
| Noteridae C. G. Thomson, 1860 | Burrowing water beetle | 1 | Species | Taxom |
| Notodontidae Stephens, 1829 | Bag Shelter Moths | 9 | Species | Taxom |
| Notonectidae Latreille, 1802 | Back Swimmers | 1 | Species | Taxom |
| Nymphalidae Rafinesque, 1815 | Admirals | 119 | Species | Taxom |
| Odiniidae Hendel, 1920 | Odiniid flies | 1 | Species | Taxom |
| Oecophoridae Bruand, 1851 | Concealer Moths | 6 | Species | Taxom |
| Oedemeridae Latreille, 1810 | False Blister Beetle | 2 | Species | Taxom |
| Oestridae Leach, 1815 | Bot flies | 5 | Species | Taxom |
| Opomyzidae (Fallen, 1820) | Opomyzid flies | 2 | Species | Taxom |
| Ortheziidae Green, 1896 | Ensign coccids | 2 | Species | Taxom |
| Otitidae (Macquart, 1835) | Picture-winged flies | 7 | Species | Taxom |
| Oxycarenidae Stål, 1862 | | 2 | Species | Taxom |
| Pachyneuridae Schiner, 1864 | Dark-winged fungus gnats | 1 | Species | Taxom |
| Pallopteridae Loew, 1862 | Flutter flies | 2 | Species | Taxom |
| Pamphiliidae Cameron, 1890 | Leaf-rolling sawflies | 4 | Species | Taxom |
| Papilionidae Latreille, 1802 | Apollos | 21 | Species | Taxom |
| Pediciidae Osten Sacken, 1860 | Hairy-Eyed Crane Flies | 3 | Species | Taxom |
| Pediculidae Leach, 1817 | | 1 | Species | Taxom |
| Pentatomidae Leach, 1815 | Lesser shield bugs | 13 | Species | Taxom |
| Perilampidae Latreille, 1809 | Perilampid waps | 1 | Species | Taxom |
| Peripsocidae Roesler, 1944 | Stout Barklice | 0 | Species | Taxom |
| Perlidae (Latreille, 1802) | Common stoneflies | 2 | Species | Taxom |
| Perlodidae Klapálek, 1912 | Perlodid stoneflies | 14 | Species | Taxom |
| Phasmatidae Roberts, 1944 | Walking sticks | 3 | Species | Taxom |
| Philopotamidae Stephens, 1829 | Finger Net caddisflies | 3 | Species | Taxom |
| Philopteridae Burmeister, 1830 | | 35 | Species | Taxom |
| Phlaeothripidae Uzel, 1895 | Thrips | 1 | Species | Taxom |
| Phoridae Curtis, 1833 | Coffin Flies | 49 | Species | Taxom |
| Phryganeidae (Leach, 1815) | Giant casemaker | 9 | Species | Taxom |
| Pieridae Duponchel, 1835 | Brimstones | 36 | Species | Taxom |
| Piophilidae Macquart, 1835 | Cheese flies | 16 | Species | Taxom |
| Pipunculidae Walker, 1834 | Big headed flies | 29 | Species | Taxom |
| Platygastridae Haliday, 1833 | Platygastrid wasps | 6 | Species | Taxom |
| Platypezidae Fallen, 1815 | Flat footed flies | 9 | Species | Taxom |
| Platystomatidae Schiner, 1862 | Picture-winged flies | 2 | Species | Taxom |
| Pleocomidae LeConte, 1861 | Rain beetle | 1 | Species | Taxom |
| Plutellidae Guenée, 1845 | Diamond-back moths | 4 | Species | Taxom |
| Polycentropodidae Ulmer, 1903 | Tube Maker Caddisflies | 5 | Species | Taxom |
| Polyplacidae Fahrenholz, 1912 | Spiny rat lice | 5 | Species | Taxom |
| Pompilidae Latreille, 1805 | Pompilid wasps | 9 | Species | Taxom |
| Prisopodidae Brunner von ..., 1893 | | 1 | Species | Taxom |
| Proctotrupidae Latreille, 1802 | Proctotrupid wasps | 18 | Species | Taxom |
| Prodoxidae Riley, 1881 | Yucca Moths | 2 | Species | Taxom |
| Pseudococcidae Heymons, 1915 | Mealy Bugs | 1 | Species | Taxom |
| Pseudophyllodromiidae Hebard, 1929 | | 1 | Species | Taxom |
| Psilidae Macquart, 1835 | Carrot flies | 5 | Species | Taxom |
| Psocidae Samouelle, 1819 | Common bark louse | 3 | Species | Taxom |
| Psoquillidae Lienhard & S..., 2002 | Bird Nest Barklice | 1 | Species | Taxom |
| Psychidae Boisduval, 1828 | Bagmoths | 2 | Species | Taxom |
| Psychodidae Newman, 1834 | Drain flies | 9 | Species | Taxom |
| Psychomyiidae Walker, 1852 | Net Tube Caddisflies | 1 | Species | Taxom |
| Psyllidae Latreille, 1807 | Jumping plant lice | 27 | Species | Taxom |
| Psyllipsocidae Enderlein, 1903 | Cave Barklice | 1 | Species | Taxom |
| Pterolonchidae Meyrick, 1918 | Lance Wing Moths | 1 | Species | Taxom |
| Pteromalidae Dalman, 1820 | Pteromalid wasps | 54 | Species | Taxom |
| Pteronarcyidae Enderlein, 1909 | Giant stoneflies | 3 | Species | Taxom |
| Pterophoridae Zeller, 1841 | Plume Moths | 10 | Species | Taxom |
| Pthiridae Leach, 1817 | | 1 | Species | Taxom |
| Ptiliidae Heer, 1843 | Feather-wing beetles | 12 | Species | Taxom |
| Ptilodactylidae Laporte, 1836 | Ptilodactylid beetles | 1 | Species | Taxom |
| Ptinidae Latreille, 1802 | Death-watch and Spider Beetles | 20 | Species | Taxom |
| Pulicidae Billberg, 1820 | Cat fleas | 3 | Species | Taxom |
| Pyralidae Latreille, 1802 | Flour Moths | 12 | Species | Taxom |
| Pyrgomorphidae Brunner von ..., 1874 | Bushlocusts | 1 | Species | Taxom |
| Pyrgotidae Schiner, 1868 | Light Flies | 0 | Species | Taxom |
| Pyrochroidae Latreille, 1807 | Cardinal beetles | 2 | Species | Taxom |
| Pythidae Solier, 1834 | Dead log bark beetles | 4 | Species | Taxom |
| Raphidiidae Latreille, 1810 | Raphidiid snakeflies | 1 | Species | Taxom |
| Reduviidae Latreille, 1807 | Assassin and thread-legged bugs | 2 | Species | Taxom |
| Rhagionidae Latreille, 1802 | Snipe flies | 10 | Species | Taxom |
| Rhaphidophoridae Walker, 1869 | And Cave Weta | 2 | Species | Taxom |
| Rhinophoridae Robineau-Des..., 1863 | Woodlouse flies | 0 | Species | Taxom |
| Rhopalidae Amyot & Serv..., 1843 | Rhopalid Bugs | 1 | Species | Taxom |
| Rhyparochromidae Amyot & Serv..., 1843 | Dirt-colored Seed Bugs | 11 | Species | Taxom |
| Richardidae Snow, 1896 | Richardid flies | 1 | Species | Taxom |
| Ricinidae Neumann, 1890 | | 1 | Species | Taxom |
| Riodinidae Grote, 1895 | Metalmark Butterflies | 5 | Species | Taxom |
| Saldidae Amyot and Se..., 1843 | Shore bug | 21 | Species | Taxom |
| Salpingidae Leach, 1815 | Narrow-waisted bark beetle | 8 | Species | Taxom |
| Sarcophagidae Macquart, 1834 | Flesh flies | 16 | Species | Taxom |
| Scarabaeidae Latreille, 1802 | Dung beetles | 36 | Species | Taxom |
| Scathophagidae Robineau-Des..., 1830 | Dung flies | 65 | Species | Taxom |
| Scatopsidae Newman, 1834 | Dung midges | 7 | Species | Taxom |
| Scelionidae Haliday, 1839 | Scelionid wasps | 5 | 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 | 61 | Species | Taxom |
| Scirtidae Fleming, 1821 | Marsh Beetle | 4 | Species | Taxom |
| Scraptiidae Mulsant, 1856 | Antlike leaf beetles | 2 | Species | Taxom |
| Scutelleridae Leach, 1815 | Jewel bugs | 2 | Species | Taxom |
| Scydmaenidae (Leach, 1815) | Ant-like stone beetles | 5 | Species | Taxom |
| Sepsidae Walker, 1833 | Black scavenger flies | 9 | Species | Taxom |
| Sesiidae Boisduval, 1828 | Clear Wings | 13 | Species | Taxom |
| Silphidae Latreille, 1807 | Burying And Carrion Beetles | 8 | Species | Taxom |
| Silvanidae Kirby, 1837 | Flat bark beetles | 3 | Species | Taxom |
| Simuliidae Newman, 1834 | Black flies | 65 | Species | Taxom |
| Siricidae Billberg, 1820 | Horntail | 8 | Species | Taxom |
| Sisyridae Handlirsch, 1908 | Spongeflies | 1 | Species | Taxom |
| Sphaeritidae Schuckard, 1839 | False clown beetle | 1 | Species | Taxom |
| Sphaeroceridae Macquart, 1835 | Dung flies | 62 | Species | Taxom |
| Sphaeropsocidae Kolbe, 1883 | | 1 | Species | Taxom |
| Sphindidae Jacquelin du..., 1860 | Cryptic slime mold beetle | 1 | Species | Taxom |
| Sphingidae Latreille, 1802 | Hawk Moths | 11 | Species | Taxom |
| Staphylinidae Lameere, 1900 | Rove beetles | 529 | Species | Taxom |
| Stenotrachelidae C. G. Thomson, 1859 | False long-horned beetles | 2 | Species | Taxom |
| Stigmaphronidae Kozlov, 1975 | Stigmaphronid wasps | 1 | Species | Taxom |
| Stratiomyidae Latreille, 1802 | Soldier flies | 13 | Species | Taxom |
| Strongylophthalmyiidae Hennig, 1940 | Strongylophthalmyiid flies | 1 | Species | Taxom |
| Syrphidae Latreille, 1802 | Drone flies | 220 | Species | Taxom |
| Tabanidae Latreille, 1802 | Breeze flies | 36 | Species | Taxom |
| Tachinidae (Robineau-Des..., 1830) | Bristle Flies | 107 | Species | Taxom |
| Taeniopterygidae Klapálek, 1905 | Taeniopterygid winter stoneflies | 5 | Species | Taxom |
| Tenebrionidae Latreille, 1802 | Darkling Beetle | 12 | Species | Taxom |
| Tenthredinidae Latreille, 1804 | Common sawflies | 187 | Species | Taxom |
| Tephritidae Newman, 1834 | Fruit flies | 19 | Species | Taxom |
| Tethinidae (Hendel, 1916) | Tethinid flies | 2 | Species | Taxom |
| Tetratomidae Billberg, 1820 | Polypore fungus beetle | 3 | Species | Taxom |
| Tetrigidae Rambur, 1838 | Groundhoppers | 2 | Species | Taxom |
| Tettigoniidae Krauss, 1902 | Bush crickets | 6 | Species | Taxom |
| Thaumaleidae Bezzi, 1913 | Solitary midges | 1 | Species | Taxom |
| Therevidae Newman, 1834 | Stiletto flies | 9 | Species | Taxom |
| Thripidae Stevens, 1829 | Common thrips | 13 | Species | Taxom |
| Tineidae Latreille, 1810 | & Allies | 11 | Species | Taxom |
| Tingidae Laporte, 1832 | Lace bug | 3 | Species | Taxom |
| Tipulidae Latreille, 1802 | Crane Flies | 197 | Species | Taxom |
| Tortricidae Latreille, 1803 | Bell Moths | 115 | Species | Taxom |
| Torymidae Walker, 1833 | Apple seed chalcids | 11 | Species | Taxom |
| Trachypachidae C. G. Thomson, 1857 | False ground beetle | 2 | Species | Taxom |
| Trichoceridae Rondani, 1841 | Winter Crane Flies | 13 | Species | Taxom |
| Trichodectidae Kellogg, 1896 | | 4 | Species | Taxom |
| Trichogrammatidae Haliday, 1851 | Trichogrammatid wasps | 4 | Species | Taxom |
| Trigonidiidae (Saussure, 1870) | And Ground Crickets | 1 | Species | Taxom |
| Triozidae Löw, 1879 | Jumping plant lice | 5 | Species | Taxom |
| Trogiidae Enderlein, 1903 | Granary Booklice | 0 | Species | Taxom |
| Trogossitidae Latreille, 1802 | Bark gnawing beetle | 5 | Species | Taxom |
| Uenoidae Iwata, 1927 | Stonecase Caddisflies | 1 | Species | Taxom |
| Ulidiidae Macquart, 1835 | Picture-winged Flies | 1 | Species | Taxom |
| Veliidae Amyot & Serv..., 1843 | Broad-shouldered bugs | 1 | Species | Taxom |
| Vermileonidae Williston, 1886 | Wormlion | 1 | Species | Taxom |
| Vermipsyllidae Wagner, 1889 | Carnivore fleas | 3 | Species | Taxom |
| Vespidae Leach, 1815 | And Allies | 28 | Species | Taxom |
| Xyelidae Newman, 1835 | Sawfly | 1 | Species | Taxom |
| Xylophagidae Fallen, 1810 | Awl-flies | 4 | Species | Taxom |
| Xyloryctidae Meyrick, 1890 | Flower Moths | 4 | Species | Taxom |
| Yponomeutidae Stephens, 1829 | Ermine Moths | 6 | Species | Taxom |
| Ypsolophidae Guenée, 1845 | Ypsolophid Moths | 3 | Species | Taxom |
| Zopheridae Solier, 1834 | Cylindrical bark beetles | 4 | Species | Taxom |
| Zygaenidae Latreille, 1809 | Burnet Forester | 2 | Species | Taxom |
