English
Reference
Joachim Schönfeld, Dirk Rohwedder (2022): Type specimen designation for Onthophagus (Colobonthophagus) aenescens (Wiedemann, 1823) and O. (Colobonthophagus) urellus Boucomont, 1920 with notes on the synonymy (Coleoptera: Scarabaeidae: Scarabaeinae) – Bonn zoological Bulletin - früher Bonner Zoologische Beiträge. – 71: 29 - 39.
