Belohinidae Paulian, 1959 Family Passalidae Leach, 1815 (bess beetles) Family Trogidae MacLeay, 1819 (hide beetles) Family Glaresidae Prudhomme de Borre, 1886 Family Diphyllostomatidae Holloway, 1972 Family Lucanidae Latreille, 1804 (stag beetles) Family Ochodaeidae Streubel, 1846 (sand-loving scarab beetles) Family Hybosoridae Erichson, 1847 Family Glaphyridae MacLeay, 1819 (bumble bee scarab beetles) Family Scarabaeidae Latreille, 1802 (scarab beetles) Family †Coprinisphaeridae Genise, 2004 (ichnotaxon) Family †Pallichnidae Genise, 2004 (ichnotaxon) Infraorder Elateriformia Superfamily Scirtoidea Fleming, 1821 Family Decliniidae Nikitsky, Lawrence, Kirejtshuk and Gratshev, 1994 Family Eucinetidae Lacordaire, 1857 Family Clambidae Fischer von Waldheim, 1821 Family Scirtidae Fleming, 1821 Family †Elodophthalmidae Kirejtshuk and Azar, 2008 Family †Mesocinetidae Kirejtshuk and Ponomarenko, 2010 Superfamily Dascilloidea Guérin-Méneville, 1843 (1834) Family Dascillidae Guérin-Méneville, 1843 (1834) Family Rhipiceridae Latreille, 1834 Superfamily Buprestoidea Leach, 1815 Family Schizopodidae LeConte, 1859 Family Buprestidae Leach, 1815 Superfamily Byrrhoidea Latreille, 1804 Family Byrrhidae Latreille, 1804 Family Protelmidae Jeannel, 1950 Family Elmidae Curtis, 1830 Family Dryopidae Billberg, 1820 (1817) Family Lutrochidae Kasap and Crowson, 1975 Family Limnichidae Erichson, 1846 Family Heteroceridae MacLeay, 1825 Family Psephenidae Lacordaire, 1854 Family Cneoglossidae Champion, 1897 Family Ptilodactylidae Laporte, 1836 Family Podabrocephalidae Pic, 1930 Family Chelonariidae Blanchard, 1845 Family Eulichadidae Crowson, 1973 Family Callirhipidae Emden, 1924 Superfamily Elateroidea Leach, 1815 Family Artematopodidae Lacordaire, 1857 Family Brachypsectridae Horn, 1881 Family Cantharidae Imhoff, 1856 (1815) (soldier beetles) Family Cerophytidae Latreille, 1834 Family Elateridae Leach, 1815 (click beetles; includes former Drilidae, Omalisidae, and Plastoceridae) Family Eucnemidae Eschscholtz, 1829 Family Lampyridae Rafinesque, 1815 (fireflies) Family Lycidae Laporte, 1836 Family Omethidae LeConte, 1861 (includes former Telegeusidae) Family Phengodidae LeConte, 1861 Family Rhagophthalmidae Olivier, 1907 Family Sinopyrophoridae Bi, 2018 Family Throscidae Laporte, 1840 nomen protectum Family †Berendtimiridae Winkler, 1987 Family †Praelateriidae Dolin, 1973 Superfamily Rhinorhipoidea Lawrence, 1988 Family Rhinorhipidae Lawrence, 1988 Infraorder Bostrichiformia Superfamily Derodontoidea LeConte, 1861 Family Derodontidae LeConte, 1861 Family Nosodendridae Erichson, 1846 Family Jacobsoniidae Heller, 1926 Superfamily Bostrichoidea Latreille, 1802 Family Dermestidae Latreille, 1804 (carpet beetles) Family Endecatomidae LeConte, 1861 Family Bostrichidae Latreille, 1802 Family Ptinidae Latreille, 1802 Infraorder Cucujiformia Superfamily Lymexyloidea Fleming, 1821 Family Lymexylidae Fleming, 1821 Superfamily Cleroidea Latreille, 1802 Family Phloiophilidae Kiesenwetter, 1863 Family Trogossitidae Latreille, 1802 Family Chaetosomatidae Crowson, 1952 Family Metaxinidae Kolibáč, 2004 Family Thanerocleridae Chapin, 1924 Family Cleridae Latreille, 1802 (checkered beetles) Family Acanthocnemidae Crowson, 1964 Family Phycosecidae Crowson, 1952 Family Prionoceridae Lacordaire, 1857 Family Mauroniscidae Majer, 1995 Family Melyridae Leach, 1815 (soft-winged flower beetles) Superfamily Cucujoidea Latreille, 1802 Family †Parandrexidae Kirejtshuk, 1994 Family †Sinisilvanidae Hong, 2002 Family