G. C.  Champion, Coleoptera, vol. 4. 1907, pp. 137-240.

M. Angel Alonso-Zarazaga and Lyal, C. H. C., ?Addenda and corrigenda to 'A world catalogue of families and genera of Curculionoidea (Insecta: Coleoptera)'?, Zootaxa, vol. 63, pp. 1-37, 2002.