Kohlmann, B., A. Arriaga-Jiménez, and M. Rös. “An Unusual New Species of Canthidium (Coleoptera: Scarabaeidae: Scarabaeinae) from Oaxaca, Mexico”. Zootaxa, vol. 4378, no. 2, Feb. 2018, pp. 273–278, doi:10.11646/zootaxa.4378.2.7.