Superfamily Scarabaeoidea Latreille, 1802
Family Scarabaeidae Latreille, 1802 - scarab beetles, dung beetles, and june "bugs"
Subfamily Melolonthinae Leach, in Samouelle, 1819
Tribe Melolonthini Leach, in Samouelle, 1819
Subtribe Rhizotrogina Burmeister, 1855
Genus Rhizotrogus Latreille, 1825, orth. protect.