Smetana, A. (2003). Contributions to the knowledge of the genera of the "Staphylinus- complex" (Coleoptera: Staphylinidae) of China part 4. Key to Chinese genera, treatment of the genera Collocypus gen. n., Ocychinus gen. n., Sphaerobulbus gen. n., Aulacocypus and Apecholinus, and comments on the genus Protocypus. Folia Heyrovskyana, 11 (2), 57-135
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Smetana, A.
2003
Contributions to the knowledge of the genera of the "Staphylinus- complex" (Coleoptera: Staphylinidae) of China part 4. Key to Chinese genera, treatment of the genera Collocypus gen. n., Ocychinus gen. n., Sphaerobulbus gen. n., Aulacocypus and Apecholinus, and comments on the genus Protocypus.