Smetana, A. (2009) “Contributions to the knowledge of the “Staphylinus-complex” (Coleoptera: Staphylinidae: Staphylinini) of China. Part 21. The genus Ocypus Leach, 1819, subgenus Pseudocypus Mulsant & Rey, 1876. Section 4”, Zootaxa. Auckland, New Zealand, 2286(1), pp. 1–30. doi: 10.11646/zootaxa.2286.1.1.