A. J.  Bates and Sadler, J. P., ?A long-lasting method for marking beetles (Coleoptera), which does not enhance mortality?, Entomological News, vol. 115, pp. 49-51, 2004.

R. D.  Gordon and Cartwright, O. L., ?Survey of food preferences of some North American Canthonini (Coleoptera: Scarabaeidae)?, Entomological News, vol. 85, pp. 181-185, 1974.

R.  E. Hoebeke and Beucke, K., ?Adventive Onthophagus (Coleoptera: Scarabaeidae) in North America: geographic ranges, diagnoses, and new distributional records?, Entomological News, vol. 108, pp. 345-362, 1997.