| Acanthocnemidae Crowson, 1964 | | 1 | Species | Taxom |
| Ademosynidae Ponomarenko, 1968 | | 3 | Species | Taxom |
| Aderidae Winkler, 1927 | Ant-like leaf beetles | 35 | Species | Taxom |
| Agyrtidae Thomson, 1859 | Primitive carrion beetles | 4 | Species | Taxom |
| Amphizoidae LeConte, 1853 | Stout-stream beetles | 1 | Species | Taxom |
| Anthicidae Latreille, 1819 | Ant beetles | 103 | Species | Taxom |
| Anthribidae Billberg, 1820 | Fungus Weevil | 99 | Species | Taxom |
| Archeocrypticidae Kaszab, 1964 | Ancient Fungus Beetles | 1 | Species | Taxom |
| Artematopodidae Lacordaire, 1857 | Soft bodied plant beetle | 1 | Species | Taxom |
| Attelabidae Billberg, 1820 | Leaf Rolling Weevil | 191 | Species | Taxom |
| Belidae Schönherr, 1826 | Belid Beetle | 2 | Species | Taxom |
| Biphyllidae LeConte, 1861 | Biphyllid beetles | 4 | Species | Taxom |
| Boleopsidae Kirejtshuk &..., 2013 | | 1 | Species | Taxom |
| Bostrichidae Latreille, 1802 | Auger beetles | 83 | Species | Taxom |
| Bothrideridae Erichson, 1845 | Cocoon-forming beetles | 6 | Species | Taxom |
| Brachyceridae (Billberg, 1820) | Brachycerids | 4 | Species | Taxom |
| Brachypteridae (Erichson, 1845) | Short-winged Flower Beetles | 26 | Species | Taxom |
| Brentidae Billberg, 1820 | Brenthidae | 392 | Species | Taxom |
| Buprestidae Leach, 1815 | Flat-headed wood-borers | 419 | Species | Taxom |
| Byrrhidae Latreille, 1804 | Moss beetles | 58 | Species | Taxom |
| Byturidae Jacquelin du..., 1858 | Fruit worms | 4 | Species | Taxom |
| Callirhipidae Emden, 1924 | Callirhipid beetles | 3 | Species | Taxom |
| Cantharidae Imhoff, 1856 | Cantharids | 204 | Species | Taxom |
| Carabidae Latreille, 1802 | Carabid beetles | 2513 | Species | Taxom |
| Caridae Thompson, 1992 | | 1 | Species | Taxom |
| Cerambycidae Latreille, 1802 | Long Horn beetles | 924 | Species | Taxom |
| Cerophytidae Latreille, 1834 | Cerophytid beetles | 1 | Species | Taxom |
| Cerylonidae Billberg, 1820 | Cerylid Kingfishers | 16 | Species | Taxom |
| Chrysomelidae Latreille, 1802 | Casebearers | 1310 | Species | Taxom |
| Ciidae Leach, 1819 | Minute tree fungus beetles | 75 | Species | Taxom |
| Clambidae Fischer, 1821 | Fringe-winged beetles | 18 | Species | Taxom |
| Cleridae Latreille, 1802 | Checkered Beetle | 71 | Species | Taxom |
| Coccinellidae Latreille, 1807 | Coccinelles | 228 | Species | Taxom |
| Colymbotethidae Ponomarenko, 1993 | | 1 | Species | Taxom |
| Corylophidae LeConte, 1852 | Hooded beetles | 35 | Species | Taxom |
| Cryptophagidae Kirby, 1937 | Mould beetles | 231 | Species | Taxom |
| Cucujidae Latreille, 1802 | Flat bark beetles | 53 | Species | Taxom |
| Cupedidae Laporte, 1836 | Cupedids | 17 | Species | Taxom |
| Curculionidae Latreille, 1802 | Ambrosia beetles | 3976 | Species | Taxom |
| Dascillidae Guérin-Ménev..., 1843 | Orchid beetles | 2 | Species | Taxom |
| Dermestidae Hope, 1840 | Carpet beetles | 147 | Species | Taxom |
| Derodontidae LeConte, 1861 | Tooth-neck fungus beetles | 4 | Species | Taxom |
| Discolomatidae Horn, 1878 | | 0 | Species | Taxom |
| Dryopidae Billberg, 1820 | Long toed water beetle | 32 | Species | Taxom |
| Dytiscidae Leach, 1815 | Diving beetles | 421 | Species | Taxom |
| Elateridae Leach, 1815 | Click Beetle | 479 | Species | Taxom |
| Elmidae Curtis, 1830 | Drive beetles | 86 | Species | Taxom |
| Endomychidae Leach, 1815 | False Ladybirds | 43 | Species | Taxom |
| Erotylidae Latreille, 1802 | Pleasing Fungus Beetle | 39 | Species | Taxom |
| Eucinetidae Lacordaire, 1857 | Plate-thigh beetle | 6 | Species | Taxom |
| Eucnemidae Eschscholtz, 1829 | Click Beetles | 37 | Species | Taxom |
| Geotrupidae Latreille, 1802 | Dor beetles | 58 | Species | Taxom |
| Glaphyridae MacLeay, 1819 | Bumble bee scarab beetle | 1 | Species | Taxom |
| Glaphyropteridae Pongracz, 1935 | | 5 | Species | Taxom |
| Glaresidae Kolbe, 1905 | Enigmatic scarab beetle | 2 | Species | Taxom |
| Gyrinidae Latreille, 1802 | Whirligig beetle | 50 | Species | Taxom |
| Haliplidae Aubé, 1836 | Crawling Water Beetle | 37 | Species | Taxom |
| Helophoridae (Leach, 1815) | Water scavenger beetles | 1 | Species | Taxom |
| Heteroceridae MacLeay, 1825 | Mud beetles | 38 | Species | Taxom |
| Histeridae Gyllenhal, 1808 | Clown beetle | 260 | Species | Taxom |
| Hybosoridae Erichson, 1847 | Pill scarab beetles | 5 | Species | Taxom |
| Hydraenidae Mulsant, 1844 | Cascade Beetles | 170 | Species | Taxom |
| Hydrophilidae Latreille, 1802 | Silver Water Beetles | 574 | Species | Taxom |
| Hydroscaphidae LeConte, 1874 | Skiff beetle | 2 | Species | Taxom |
| Hygrobiidae Régimbart, 1878 | Screech beetles | 1 | Species | Taxom |
| Ithyceridae (Schönherr, 1826) | New York weevil | 1 | Species | Taxom |
| Jacobsoniidae Heller, 1926 | Jacobson's beetles | 1 | Species | Taxom |
| Kateretidae Kirkby, 1837 | Pollen Beetles | 3 | Species | Taxom |
| Lampyridae Latreille, 1817 | Fireflies | 42 | Species | Taxom |
| Lasiosynidae Kirejtshuk, ..., 2010 | | 1 | Species | Taxom |
| Latridiidae Erichson, 1842 | Minute brown scavenger beetle | 141 | Species | Taxom |
| Leiodidae Fleming, 1821 | Round fungus beetles | 417 | Species | Taxom |
| Limnichidae Erichson, 1846 | Minute marsh loving beetle | 8 | Species | Taxom |
| Lucanidae Latreille, 1804 | Stag Beetle | 68 | Species | Taxom |
| Lycidae Laporte, 1836 | Lycid beetles | 38 | Species | Taxom |
| Lymexylidae Fleming, 1821 | Ship-timber beetle | 5 | Species | Taxom |
| Megalopodidae Latreille, 1802 | Megalopodid Leaf Beetles | 4 | Species | Taxom |
| Melandryidae Leach, 1815 | False Darkling Beetle | 60 | Species | Taxom |
| Meloidae Gyllenhal, 1810 | Blister Beetle | 119 | Species | Taxom |
| Melolonthidae (Leach, 1817) | Chafers | 1 | Species | Taxom |
| Melyridae Leach, 1815 | Malachite Beetles | 201 | Species | Taxom |
| Micromalthidae Barber, 1913 | Micromalthid beetles | 2 | Species | Taxom |
| Monotomidae Laporte, 1840 | Minute Clubbed Beetles | 36 | Species | Taxom |
| Mordellidae Latreille, 1802 | Pintail beetles | 179 | Species | Taxom |
| Mycetophagidae Leach, 1815 | Hairy fungus beetle | 30 | Species | Taxom |
| Mycteridae Blanchard, 1845 | Mycterid beetles | 5 | Species | Taxom |
| Nemonychidae Bedel, 1882 | Nemonychid weevils | 9 | Species | Taxom |
| Nitidulidae Latreille, 1802 | Nitidules | 305 | Species | Taxom |
| Nosodendridae Erichson, 1846 | Nosodendrid beetles | 1 | Species | Taxom |
| Noteridae C. G. Thomson, 1860 | Burrowing water beetle | 4 | Species | Taxom |
| Obrieniidae Zherikhin an..., 1994 | | 1 | Species | Taxom |
| Ochodaeidae Mulsant & Rey, 1870 | Sand-loving scarab beetle | 4 | Species | Taxom |
| Oedemeridae Latreille, 1810 | False Blister Beetle | 60 | Species | Taxom |
| Ommatidae Sharp & Muir, 1912 | | 2 | Species | Taxom |
| Orsodacnidae Thomson, 1859 | Orsodacnid Leaf Beetles | 4 | Species | Taxom |
| Passalidae Leach, 1815 | Bess beetle | 7 | Species | Taxom |
| Permosynidae Tillyard, 1924 | | 1 | Species | Taxom |
| Phalacridae Leach, 1815 | Shining flower beetles | 38 | Species | Taxom |
| Phengodidae LeConte, 1861 | Glow-worms | 3 | Species | Taxom |
| Phloeostichidae Reitter, 1911 | | 1 | Species | Taxom |
| Phloiophilidae Kiesenwetter, 1863 | | 2 | Species | Taxom |
| Pleocomidae LeConte, 1861 | Rain beetle | 1 | Species | Taxom |
| Prostomidae C. G. Thomson, 1859 | Jugular-horned beetle | 1 | Species | Taxom |
| Psephenidae Lacordaire, 1854 | Water pennies | 5 | Species | Taxom |
| Ptiliidae Heer, 1843 | Feather-wing beetles | 125 | Species | Taxom |
| Ptilodactylidae Laporte, 1836 | Ptilodactylid beetles | 2 | Species | Taxom |
| Ptinidae Latreille, 1802 | Death-watch and Spider Beetles | 258 | Species | Taxom |
| Pyrochroidae Latreille, 1807 | Cardinal beetles | 9 | Species | Taxom |
| Pythidae Solier, 1834 | Dead log bark beetles | 3 | Species | Taxom |
| Rhipiceridae Latreille, 1834 | Cedar beetles | 1 | Species | Taxom |
| Rhipiphoridae Gemminger & ..., 1870 | Hump back beetles | 4 | Species | Taxom |
| Ripiphoridae Gemminger & ..., 1870 | Rhipiphoridae | 11 | Species | Taxom |
| Rutelidae (MacLeay, 1819) | | 2 | Species | Taxom |
| Salpingidae Leach, 1815 | Narrow-waisted bark beetle | 29 | Species | Taxom |
| Scarabaeidae Latreille, 1802 | Dung beetles | 1059 | Species | Taxom |
| Schizocoleidae Rohdendorf, 1961 | | 1 | Species | Taxom |
| Scirtidae Fleming, 1821 | Marsh Beetle | 66 | Species | Taxom |
| Scraptiidae Mulsant, 1856 | Antlike leaf beetles | 53 | Species | Taxom |
| Scydmaenidae (Leach, 1815) | Ant-like stone beetles | 260 | Species | Taxom |
| Silphidae Latreille, 1807 | Burying And Carrion Beetles | 75 | Species | Taxom |
| Silvanidae Kirby, 1837 | Flat bark beetles | 31 | Species | Taxom |
| Smicripidae Horn, 1879 | Palmetto beetle | 1 | Species | Taxom |
| Sphaeritidae Schuckard, 1839 | False clown beetle | 2 | Species | Taxom |
| Sphaeriusidae Erichson, 1845 | Minute Bog Beetles | 4 | Species | Taxom |
| Sphindidae Jacquelin du..., 1860 | Cryptic slime mold beetle | 3 | Species | Taxom |
| Staphylinidae Lameere, 1900 | Rove beetles | 3580 | Species | Taxom |
| Stenotrachelidae C. G. Thomson, 1859 | False long-horned beetles | 4 | Species | Taxom |
| Tenebrionidae Latreille, 1802 | Darkling Beetle | 482 | Species | Taxom |
| Teredidae Seidlitz, 1888 | | 25 | Species | Taxom |
| Tetratomidae Billberg, 1820 | Polypore fungus beetle | 15 | Species | Taxom |
| Thanerocleridae Chapin, 1921 | | 3 | Species | Taxom |
| Throscidae Laporte, 1840 | False metallic wood-boring beetles | 29 | Species | Taxom |
| Trachypachidae C. G. Thomson, 1857 | False ground beetle | 1 | Species | Taxom |
| Trogidae (MacLeay, 1819) | Gnawer beetles | 23 | Species | Taxom |
| Trogossitidae Latreille, 1802 | Bark gnawing beetle | 22 | Species | Taxom |
| Vesperidae Mulsant, 1839 | Vesperid longicorn beetles | 6 | Species | Taxom |
| Zopheridae Solier, 1834 | Cylindrical bark beetles | 51 | Species | Taxom |
