Smetana, A. Contributions to the Knowledge of the “Staphylinus-Complex” (Coleoptera: Staphylinidae: Staphylinini) of China. Part 21. The Genus Ocypus Leach, 1819, Subgenus Pseudocypus Mulsant &Amp; Rey, 1876. Section 4. Zootaxa 2009, 2286, 1–30.