Onthophagus (Onthophagus) bicolensis asin
Notes on the coprophagous scarab-beetles (Coleoptera, Scarabaeidae) from Southeast Asia (XI). Four new species and a new subspecies of Onthophagus from Luxon, the Philippines. Kogane, 7, July 31 2006: 41-48. 46 [Zoological Record Volume 142]