Ballerio, A., B. D. Gill, and V. V. Grebennikov. “Illustrated Overview and Identification Key to Cameroonian Ceratocanthinae Beetles (Coleoptera: Scarabaeoidea: Hybosoridae) With Description of Four New Species”. Zootaxa, vol. 2892, no. 1, May 2011, pp. 1–24, doi:10.11646/zootaxa.2892.1.1.