Calcetas, O. A., J. R. Adorada, and M. V. Navasero. “Review of the Genus Exopholis Motschulsky, 1859 (Coleoptera: Scarabaeidae: Melolonthinae: Leucopholini) in the Philippines”. Zootaxa, vol. 4859, no. 4, Oct. 2020, pp. 527–536, doi:10.11646/zootaxa.4859.4.4.