S. G.  Marshall, ?New Curculionidae, with notes on synonymy?, Annals and Magazine of Natural History, vol. (10) 6, pp. 551-577, 1930.

S. G.  Marshall, ?New Curculionidae, with notes on synonymy?, Annals and Magazine of Natural History, vol. (10) 6, pp. 551-577, 1930.

J.  Brethes, ?Coleopteros Argentinos y Bolivianos?, Buenos Aires An. Soc. Cient. Argent., vol. 69, pp. (205-227), 1910.