Pelsue, Jr., F.W. & O’brien, C.W. (2011) A redefinition of the Curculionini of the world, with a key to subtribes and genera, and two new genera: Pseudoculio and Megaoculis (Coleoptera: Curculionidae: Curculioninae). Zootaxa, 3102 (1), 27–49.