O. P.  Young, ?Predation by tiger beetles (Coleoptera: Cicindelidae) on dung beetles (Coleoptera: Scarabaeidae) in Panama?, The Coleopterists Bulletin, vol. 34, pp. 63-65, 1980.

O. P.  Young, ?Bone burial by a neotropical beetle (Coleoptera: Scarabaeidae)?, The Coleopterists Bulletin, vol. 34, pp. 253-255, 1980.