Micó, E., and E. Galante. “A New Species of Pachydema Laporte (Coleoptera: Scarabaeoidea: Scarabaeidae: Melolonthinae: Pachydemini) from the Canary Islands”. Zootaxa, vol. 2284, no. 1, Nov. 2009, pp. 41–47, doi:10.11646/zootaxa.2284.1.3.