Bolbaoeer princeps

Gussmann, S. M. V. & Scholtz, C. H., 2001, Systematic revision of the Afrotropical genus BolbaOEer Vulcano, Martinez and Pereira (Coleoptera: Scarabaeoidea: Bolboceratidae: Bolboceratinae), with descriptions of eight new species, Journal of Natural History 35 (7), pp. 1013-1084 : 1032

BolbaOEer princeps species-group

This species-group consists of B. nikolajevi , B. princeps and B. gigas . Males share: outer margin of mandible feebly or very feebly sinuate; anterior pronotal margin, in major males at least, medially in dorsal view projecting over frons and with feebly to distinctly bisinuate curvature (e.g. ®gure 2b, c); posterior margin of sternite 5 more or less emarginate (®gures 17b, 19b, g); sternite 6 medially deeply divided, with the two lateral lobes similar in shape (®gures 17b, 19b, g); pygidium unmodi®ed or with apex feebly emarginate (®gures 17a, 19a); and aedeagus of similar shape, with relatively short but broad parameres (®gures 17c±e, 19c±e, h±j). Females share: outer margin of mandible rounded; and general lack of modi®cations on abdominal sternites and pygidium.