Sousa, R. and Seidel, M. (2021) “Review of the Inca irroratus species group with description of two new species of Inca LePeletier & Serville, 1828 (Coleoptera, Scarabaeidae, Cetoniinae)”, European Journal of Taxonomy, 748(1), pp. 15-35. doi: 10.5852/ejt.2021.748.1335.