Perreau, M., and A. Faille. “One New Species of Ptomaphaminus Perreau, 2000 (Coleoptera: Leiodidae: Cholevinae: Ptomaphagini) from a Granitic Subterranean Environment in Vietnam”. Zootaxa, vol. 4021, no. 1, Sept. 2015, pp. 195–200, doi:10.11646/zootaxa.4021.1.10.