FIGURES 15–21 in 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

FIGURES 15–21. Details of Ocypus aenescens. 15—tergite 10 of male genital segment (1.4 mm); 16—sternite 9 of male genital segment (1.9 mm); 17—aedoeagus, ventral view (1.85 mm); 18—aedoeagus, lateral view (1.9 mm); 19— underside of paramere (1.2 mm); 20—apical portion of underside of paramere; 21—tergite 10 of female genital segment (1.45 mm).