Figure 57 from: Caterino M, Tishechkin A (2013) A systematic revision of Operclipygus Marseul (Coleoptera, Histeridae, Exosternini). ZooKeys 271: 1-401. https://doi.org/10.3897/zookeys.271.4062

Figure 57 - Male genitalia of Operclipygus hamistrius group. A T8 of Operclipygus hamistrius B S8 of Operclipygus hamistrius C T9 & T10 of Operclipygus hamistrius D S9 of Operclipygus hamistrius E T8 of Operclipygus quinquestriatus F S8 of Operclipygus quinquestriatus G T9 & T10 of Operclipygus quinquestriatus H S9 of Operclipygus quinquestriatus I Aedeagus, dorsal and lateral views, of Operclipygus hamistrius J Aedeagus, dorsal and lateral views, of Operclipygus geometricus K Aedeagus, dorsal and lateral views, of Operclipygus arquus L Aedeagus, lateral view, of Operclipygus rufescens M Aedeagus, dorsal and lateral views, of Operclipygus chiapensis.