Fig. 3. Head and pronotum details. a. Oplognathus kirbii MacLeay, 1819 in Taxonomic revision of the genus Oplognathus MacLeay, 1819 (Coleoptera: Scarabaeidae: Rutelinae: Rutelini)

Fig. 3. Head and pronotum details. a. Oplognathus kirbii MacLeay, 1819, male specimen (ZMHB). b. O. bahianus Ohaus, 1912, syntype, ♂ (ZMHB). c. O. helmenreichi Ohaus, 1905, holotype, ♂ (ZMHB). d. O. helmenreichi var. maculicollis Ohaus, 1914, syntype, ♂ (ZMHB). Scale bar = 1 mm.