Yunakov, N. 2012. Afrotropical weevils of the Cadoderus Marshall generic complex (Coleoptera: Curculionidae: Entiminae: Embrithini). Part 1. Genera: Cadoderus Marshall, 1926; Sphrigodellus Marshall, 1942 and Oncophyes Marshall, 1942. Zootaxa. 3535, 1 (Nov. 2012), 1–104. DOI:https://doi.org/10.11646/zootaxa.3535.1.1.