Onthophagus (Gibbonthophagus) semipersonatus
Notes on the coprophagous scarab-beetles (Coleoptera: Scarabaeidae) from Southeast Asia (XXI) nine new species and two new subspecies of Onthophagus from the Malay Peninsula, Sumatra and Borneo. Entomological Review of Japan, 64(2), December 30 2009: 217-236. 227 [Zoological Record Volume 146]