Oncerinae
Oncerinae is a small subfamily of scarab beetles in the family Scarabaeidae. There are only two genera Oncerinae, each with a single species.
Oncerinae has been sometimes classified as a tribe of the subfamily Melolonthinae, "Oncerini".
Genera
These two genera belong to the subfamily Oncerinae:; Genus Nefoncerus Saylor, 1938 - Neotropics
; Genus Oncerus LeConte, 1856 - North America