Taxonomic-instability
Guides
Oncerinae
Oncerinae is a small subfamily of scarab beetles containing only two genera, each with a single species: Nefoncerus convergens in the Neotropics and Oncerus floralis in North America. The group has been historically unstable in classification, sometimes treated as a tribe (Oncerini) within Melolonthinae. Its limited diversity and disjunct geographic distribution make it a minor but taxonomically distinct lineage within Scarabaeidae.