Onthophagus orpheus is a species of dung beetle in the family Scarabaeidae. It is found primarily in the eastern United States and southeastern Canada.
Subspecies These three subspecies belong to the species Onthophagus orpheus: Onthophagus orpheus canadensis (Fabricius, 1801) Onthophagus orpheus orpheus (Panzer, 1794) Onthophagus orpheus pseudorpheus HOWDEN & CARTWRIGHT, 1963
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