FIGURES 30–35 in Sinolethrus, a new subgenus of the genus Lethrus Scopoli, 1777 from China (Coleoptera: Geotrupidae: Lethrinae) and new synonymy of the subgenus Paralethrus Nikolajev, 2003

FIGURES 30–35. Head of Lethrus species with mandibular appendix, keels and hornlike apophyses of mandibles (males), schematically. 30–32 L. (Autolethrus) tshatkalensis Protzenko, 1965 (30 frontal view, 31 lateral view, 32 dorsal view); 33–35 L. (Teratolethrus) baiocchii Hillert & Sechi, 2014 (33 frontal view, 34 lateral view).