Fig. 3 in A taxonomic review of the endemic Mexican genus Ceratotrupes Jekel, 1865 (Coleoptera: Geotrupidae: Ceratotrupini), with the description of an unexpected new species from the Sierra Madre del Sur

Fig. 3. Ceratotrupes sturmi (Jekel, 1865) (CMNC). A–B. Dorsal habitus of male (A) and female (B). C. Details of head and prothorax; arrows indicate posteromedial edge of pronotum margined. D. Details of cephalic horn and pronotal projection of male. E. Aedeagus in dorsal view. F. Parameres in dorsal view; arrows indicate main differences between C. sturmi and C. gonzaloi sp. nov. G. Right paramere in lateral view; arrow indicates lobe beneath apical spur. H. Tergite. I. Pleurotergites. J. Phallobase in ventral view; arrow indicates curved margin of ventral lobe. K. Phallobase in dorsal view. L. Phallobase in lateral view; arrow indicates long bifurcation. M. Internal sac (is) and median struts (ms) in dorsal view. N. Internal sac and median struts in lateral view.