| Acanthocnemidae Crowson, 1964 | | 4 | Species | Taxom |
| Aderidae Winkler, 1927 | Ant-like leaf beetles | 258 | Species | Taxom |
| Agyrtidae Thomson, 1859 | Primitive carrion beetles | 72 | Species | Taxom |
| Alloioscarabaeidae Bai & al., 2012 | | 1 | Species | Taxom |
| Anthicidae Latreille, 1819 | Ant beetles | 882 | Species | Taxom |
| Anthribidae Billberg, 1820 | Fungus Weevil | 1687 | Species | Taxom |
| Aphodiidae Leach, 1815 | | 19 | Species | Taxom |
| Archeocrypticidae Kaszab, 1964 | Ancient Fungus Beetles | 18 | Species | Taxom |
| Artematopodidae Lacordaire, 1857 | Soft bodied plant beetle | 17 | Species | Taxom |
| Attelabidae Billberg, 1820 | Leaf Rolling Weevil | 3186 | Species | Taxom |
| Belidae Schönherr, 1826 | Belid Beetle | 62 | Species | Taxom |
| Berendtimiridae Winkler, 1987 | | 1 | Species | Taxom |
| Biphyllidae LeConte, 1861 | Biphyllid beetles | 51 | Species | Taxom |
| Bolboceratidae (Mulsant, 1842) | Dor beetle | 2 | Species | Taxom |
| Boleopsidae Kirejtshuk &..., 2013 | | 1 | Species | Taxom |
| Boridae C. G. Thomson, 1859 | Borids | 4 | Species | Taxom |
| Bostrichidae Latreille, 1802 | Auger beetles | 356 | Species | Taxom |
| Bothrideridae Erichson, 1845 | Cocoon-forming beetles | 71 | Species | Taxom |
| Brachyceridae (Billberg, 1820) | Brachycerids | 31 | Species | Taxom |
| Brachypsectridae LeConte & Horn, 1883 | Texas beetle | 2 | Species | Taxom |
| Brachypteridae (Erichson, 1845) | Short-winged Flower Beetles | 73 | Species | Taxom |
| Brentidae Billberg, 1820 | Brenthidae | 1649 | Species | Taxom |
| Buprestidae Leach, 1815 | Flat-headed wood-borers | 3104 | Species | Taxom |
| Byrrhidae Latreille, 1804 | Moss beetles | 356 | Species | Taxom |
| Byturidae Jacquelin du..., 1858 | Fruit worms | 23 | Species | Taxom |
| Callirhipidae Emden, 1924 | Callirhipid beetles | 68 | Species | Taxom |
| Cantharidae Imhoff, 1856 | Cantharids | 2373 | Species | Taxom |
| Caridae Thompson, 1992 | | 35 | Species | Taxom |
| Cerambycidae Latreille, 1802 | Long Horn beetles | 17967 | Species | Taxom |
| Cerophytidae Latreille, 1834 | Cerophytid beetles | 8 | Species | Taxom |
| Cerylonidae Billberg, 1820 | Cerylid Kingfishers | 137 | Species | Taxom |
| Cetoniidae (Leach, 1815) | Flower beetles | 4 | Species | Taxom |
| Chelonariidae Blanchard, 1845 | Chelonarid beetles | 26 | Species | Taxom |
| Chrysomelidae Latreille, 1802 | Casebearers | 6458 | Species | Taxom |
| Ciidae Leach, 1819 | Minute tree fungus beetles | 268 | Species | Taxom |
| Clambidae Fischer, 1821 | Fringe-winged beetles | 81 | Species | Taxom |
| Cleridae Latreille, 1802 | Checkered Beetle | 521 | Species | Taxom |
| Coccinellidae Latreille, 1807 | Coccinelles | 1460 | Species | Taxom |
| Corylophidae LeConte, 1852 | Hooded beetles | 102 | Species | Taxom |
| Cryptophagidae Kirby, 1937 | Mould beetles | 448 | Species | Taxom |
| Cucujidae Latreille, 1802 | Flat bark beetles | 259 | Species | Taxom |
| Curculionidae Latreille, 1802 | Ambrosia beetles | 23901 | Species | Taxom |
| Dascillidae Guérin-Ménev..., 1843 | Orchid beetles | 76 | Species | Taxom |
| Decliniidae Nikitsky, La..., 1994 | Declinia relicta | 2 | Species | Taxom |
| Dermestidae Hope, 1840 | Carpet beetles | 706 | Species | Taxom |
| Derodontidae LeConte, 1861 | Tooth-neck fungus beetles | 35 | Species | Taxom |
| Discolomatidae Horn, 1878 | | 114 | Species | Taxom |
| Drilidae (Blanchard, 1845) | Drilid beetles | 3 | Species | Taxom |
| Dryophthoridae (Schönherr, 1825) | Palm weevils | 9 | Species | Taxom |
| Dryopidae Billberg, 1820 | Long toed water beetle | 130 | Species | Taxom |
| Elateridae Leach, 1815 | Click Beetle | 6678 | Species | Taxom |
| Elmidae Curtis, 1830 | Drive beetles | 724 | Species | Taxom |
| Elodophthalmidae Kirejtshuk &..., 2008 | | 2 | Species | Taxom |
| Endomychidae Leach, 1815 | False Ladybirds | 735 | Species | Taxom |
| Erotylidae Latreille, 1802 | Pleasing Fungus Beetle | 292 | Species | Taxom |
| Eucinetidae Lacordaire, 1857 | Plate-thigh beetle | 38 | Species | Taxom |
| Eucnemidae Eschscholtz, 1829 | Click Beetles | 157 | Species | Taxom |
| Eulichadidae Crowson, 1973 | Forest stream beetle | 32 | Species | Taxom |
| Georyssidae Laporte, 1819 | Minute mud-loving beetles | 1 | Species | Taxom |
| Geotrupidae Latreille, 1802 | Dor beetles | 776 | Species | Taxom |
| Glaphyridae MacLeay, 1819 | Bumble bee scarab beetle | 211 | Species | Taxom |
| Glaphyropteridae Pongracz, 1935 | | 23 | Species | Taxom |
| Glaresidae Kolbe, 1905 | Enigmatic scarab beetle | 29 | Species | Taxom |
| Helophoridae (Leach, 1815) | Water scavenger beetles | 1 | Species | Taxom |
| Helotidae Reitter, 1876 | | 111 | Species | Taxom |
| Heteroceridae MacLeay, 1825 | Mud beetles | 199 | Species | Taxom |
| Histeridae Gyllenhal, 1808 | Clown beetle | 2247 | Species | Taxom |
| Hybosoridae Erichson, 1847 | Pill scarab beetles | 246 | Species | Taxom |
| Hydraenidae Mulsant, 1844 | Cascade Beetles | 1164 | Species | Taxom |
| Hydrochidae (Thomson, 1859) | | 1 | Species | Taxom |
| Hydrophilidae Latreille, 1802 | Silver Water Beetles | 2414 | Species | Taxom |
| Ithyceridae (Schönherr, 1826) | New York weevil | 4 | Species | Taxom |
| Jacobsoniidae Heller, 1926 | Jacobson's beetles | 17 | Species | Taxom |
| Jurodidae Ponomarenko, 1985 | Jurodids | 6 | Species | Taxom |
| Kateretidae Kirkby, 1837 | Pollen Beetles | 16 | Species | Taxom |
| Laemophloeidae (Ganglbauer, 1899) | Lined flat bark beetles | 16 | Species | Taxom |
| Lagriidae (Latreille, 1825) | Lagriid beetles | 1 | Species | Taxom |
| Lampyridae Latreille, 1817 | Fireflies | 1047 | Species | Taxom |
| Languriidae (Latreille, 1802) | Lizard beetles | 1 | Species | Taxom |
| Lasiosynidae Kirejtshuk, ..., 2010 | | 52 | Species | Taxom |
| Latridiidae Erichson, 1842 | Minute brown scavenger beetle | 367 | Species | Taxom |
| Leiodidae Fleming, 1821 | Round fungus beetles | 3453 | Species | Taxom |
| Limnichidae Erichson, 1846 | Minute marsh loving beetle | 180 | Species | Taxom |
| Lithoscarabaeidae Nikolajev, 1992 | | 3 | Species | Taxom |
| Lucanidae Latreille, 1804 | Stag Beetle | 2143 | Species | Taxom |
| Lutrochidae Kasap & Crowson, 1975 | Robust marsh loving beetle | 4 | Species | Taxom |
| Lycidae Laporte, 1836 | Lycid beetles | 829 | Species | Taxom |
| Lymexylidae Fleming, 1821 | Ship-timber beetle | 53 | Species | Taxom |
| Megalopodidae Latreille, 1802 | Megalopodid Leaf Beetles | 167 | Species | Taxom |
| Melandryidae Leach, 1815 | False Darkling Beetle | 281 | Species | Taxom |
| Meloidae Gyllenhal, 1810 | Blister Beetle | 949 | Species | Taxom |
| Melolonthidae (Leach, 1817) | Chafers | 93 | Species | Taxom |
| Melyridae Leach, 1815 | Malachite Beetles | 815 | Species | Taxom |
| Mesocinetidae Kirejtshuk &..., 2010 | | 4 | Species | Taxom |
| Monotomidae Laporte, 1840 | Minute Clubbed Beetles | 139 | Species | Taxom |
| Mordellidae Latreille, 1802 | Pintail beetles | 1013 | Species | Taxom |
| Mycetophagidae Leach, 1815 | Hairy fungus beetle | 80 | Species | Taxom |
| Mycteridae Blanchard, 1845 | Mycterid beetles | 25 | Species | Taxom |
| Myraboliidae Lawrence and..., 1991 | | 0 | Species | Taxom |
| Nemonychidae Bedel, 1882 | Nemonychid weevils | 149 | Species | Taxom |
| Nitidulidae Latreille, 1802 | Nitidules | 923 | Species | Taxom |
| Nosodendridae Erichson, 1846 | Nosodendrid beetles | 44 | Species | Taxom |
| Obrieniidae Zherikhin an..., 1994 | | 12 | Species | Taxom |
| Ochodaeidae Mulsant & Rey, 1870 | Sand-loving scarab beetle | 105 | Species | Taxom |
| Oedemeridae Latreille, 1810 | False Blister Beetle | 408 | Species | Taxom |
| Omalisidae Lacordaire, 1857 | | 2 | Species | Taxom |
| Omethidae LeConte, 1861 | False fireflies | 16 | Species | Taxom |
| Orsodacnidae Thomson, 1859 | Orsodacnid Leaf Beetles | 5 | Species | Taxom |
| Oxypeltidae Lacordaire, 1869 | | 1 | Species | Taxom |
| Parandrexidae Kirejtshuk, 1994 | | 7 | Species | Taxom |
| Passalidae Leach, 1815 | Bess beetle | 345 | Species | Taxom |
| Passandridae (Erichson, 1845) | Parasitic flat bark beetle | 3 | Species | Taxom |
| Phalacridae Leach, 1815 | Shining flower beetles | 107 | Species | Taxom |
| Phengodidae LeConte, 1861 | Glow-worms | 42 | Species | Taxom |
| Phloeostichidae Reitter, 1911 | | 1 | Species | Taxom |
| Phloiophilidae Kiesenwetter, 1863 | | 3 | Species | Taxom |
| Phycosecidae Crowson, 1952 | | 0 | Species | Taxom |
| Pleocomidae LeConte, 1861 | Rain beetle | 9 | Species | Taxom |
| Podabrocephalidae Pic, 1930 | | 1 | Species | Taxom |
| Praelateriidae Dolin, 1973 | | 1 | Species | Taxom |
| Prionoceridae Lacaordaire, 1857 | | 41 | Species | Taxom |
| Promecheilidae Lacordaire, 1859 | | 3 | Species | Taxom |
| Prostomidae C. G. Thomson, 1859 | Jugular-horned beetle | 19 | Species | Taxom |
| Proterhinidae (Fauvel, 1891) | | 2 | Species | Taxom |
| Psephenidae Lacordaire, 1854 | Water pennies | 159 | Species | Taxom |
| Pterogeniidae Crowson, 1953 | | 20 | Species | Taxom |
| Ptiliidae Heer, 1843 | Feather-wing beetles | 377 | Species | Taxom |
| Ptilodactylidae Laporte, 1836 | Ptilodactylid beetles | 180 | Species | Taxom |
| Ptinidae Latreille, 1802 | Death-watch and Spider Beetles | 725 | Species | Taxom |
| Pyrochroidae Latreille, 1807 | Cardinal beetles | 72 | Species | Taxom |
| Pythidae Solier, 1834 | Dead log bark beetles | 7 | Species | Taxom |
| Rhagophthalmidae Olivier, 1907 | | 8 | Species | Taxom |
| Rhipiceridae Latreille, 1834 | Cedar beetles | 23 | Species | Taxom |
| Rhipiphoridae Gemminger & ..., 1870 | Hump back beetles | 19 | Species | Taxom |
| Rhynchitidae Gistel, 1848 | Leaf-rolling weevils | 35 | Species | Taxom |
| Ripiphoridae Gemminger & ..., 1870 | Rhipiphoridae | 65 | Species | Taxom |
| Rutelidae (MacLeay, 1819) | | 87 | Species | Taxom |
| Salpingidae Leach, 1815 | Narrow-waisted bark beetle | 154 | Species | Taxom |
| Scarabaeidae Latreille, 1802 | Dung beetles | 16823 | Species | Taxom |
| Schizopodidae (LeConte, 1859) | False Jewel Beetles | 3 | Species | Taxom |
| Scirtidae Fleming, 1821 | Marsh Beetle | 483 | Species | Taxom |
| Scolytidae (Latreille, 1807) | Ambrosia | 5 | Species | Taxom |
| Scraptiidae Mulsant, 1856 | Antlike leaf beetles | 238 | Species | Taxom |
| Scydmaenidae (Leach, 1815) | Ant-like stone beetles | 2531 | Species | Taxom |
| Septiventeridae Bai & al., 2013 | | 1 | Species | Taxom |
| Silphidae Latreille, 1807 | Burying And Carrion Beetles | 241 | Species | Taxom |
| Silvanidae Kirby, 1837 | Flat bark beetles | 270 | Species | Taxom |
| Sinisilvanidae (Hong, 2002) | | 1 | Species | Taxom |
| Smicripidae Horn, 1879 | Palmetto beetle | 3 | Species | Taxom |
| Sphaeritidae Schuckard, 1839 | False clown beetle | 7 | Species | Taxom |
| Sphindidae Jacquelin du..., 1860 | Cryptic slime mold beetle | 28 | Species | Taxom |
| Staphylinidae Lameere, 1900 | Rove beetles | 34243 | Species | Taxom |
| Stenotrachelidae C. G. Thomson, 1859 | False long-horned beetles | 22 | Species | Taxom |
| Synchroidae Lacordaire, 1859 | Synchroa bark beetles | 3 | Species | Taxom |
| Synteliidae Lewis, 1882 | | 12 | Species | Taxom |
| Telegeusidae (LeConte, 1861) | Glowworm beetles | 0 | Species | Taxom |
| Tenebrionidae Latreille, 1802 | Darkling Beetle | 3568 | Species | Taxom |
| Teredidae Seidlitz, 1888 | | 117 | Species | Taxom |
| Tetratomidae Billberg, 1820 | Polypore fungus beetle | 82 | Species | Taxom |
| Thanerocleridae Chapin, 1921 | | 10 | Species | Taxom |
| Throscidae Laporte, 1840 | False metallic wood-boring beetles | 94 | Species | Taxom |
| Trictenotomidae Blanchard, 1845 | Croc beetles | 18 | Species | Taxom |
| Trogidae (MacLeay, 1819) | Gnawer beetles | 206 | Species | Taxom |
| Trogossitidae Latreille, 1802 | Bark gnawing beetle | 144 | Species | Taxom |
| Ulyanidae (Zherikhin, 1993) | | 2 | Species | Taxom |
| Vesperidae Mulsant, 1839 | Vesperid longicorn beetles | 47 | Species | Taxom |
| Zopheridae Solier, 1834 | Cylindrical bark beetles | 346 | Species | Taxom |
