T.C. MacRae, S.R. Penn. Additional records of adventive Onthophagus Latr. (Scarabaeidae) in N. America

Ted C. MacRae, Stephen R. Penn.
Additional Records of Adventive Onthophagus Latreille (Coleoptera: Scarabaeidae) in North America.
The Coleopterists Bulletin, 2001, 55(1):49-50.