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Ocampo, F.C. and Colby, J. 2009. Parallidiostoma tricornum Ocampo and Colby, a new genus and species of Allidiostomatinae from Peru (Coleoptera: Scarabaeidae). Zootaxa. 2287, 1 (Nov. 2009), 64–68. DOI:https://doi.org/10.11646/zootaxa.2287.1.4.