Ricchiardi, E. “Notes on Genus Epitrichius Tagawa, 1941 in Vietnam, With Description of a New Species and a New Synonym (Coleoptera: Scarabaeidae, Cetoniinae)”. Fragmenta Entomologica, Vol. 50, no. 2, Dec. 2018, pp. 131-6, doi:10.4081/fe.2018.304.