Onthophagus bajacalifornianus, Moctezuma & Halffter, 2019

Moctezuma, Victor & Halffter, Gonzalo, 2019, New biogeographical makeup for colonisation of the Baja California Peninsulaı with the description of a new Onthophagus (Coleoptera: Scarabaeidae: Scarabaeinae), Journal of Natural History 53 (33), pp. 2057-2071 : 2057-2071

Key to the Onthophagus chevrolati species group modified from Zunino and Halffter

(1988a) to include the new species.

12. Dorsal colour dark blue. ............................................................................................................. 13

– Different colourı without strong contrast in the elytraı head and pronotum................................................................................................................................ 14

13. Pronotal prominence of the major male obtusely triangular; head and pronotum shiningı contrasting strongly with the dull elytraı frontal carina medially sinuateı clypeal carina developed ........... ........... O. semiopacus Harold 1869

– Pronotal prominence of the major male obtusely trapezoidalı dorsal habitus completely mate with a greenish castı frontal carina trapezoidal in shapeı clypeal carina absent ..... ................................................................................................................. O. bajacalifornianus new species