E. C.  Zimmerman, ?Rhynchophorinae of southeastern Polynesia (Coleoptera: Curculionidae)?, Pacif. Insects, vol. 10, pp. 47-77, 1968.

S. G. A. K.  Marshall, ?New Indian Curculionidae (Col.)?, Ann. Mag. nat. Hist., London (11), vol. 10, pp. pp. 105-119, 1943.

E. C.  Zimmerman, ?Rhynchophorinae of southeastern Polynesia (Coleoptera: Curculionidae)?, Pacif. Insects, vol. 10, pp. 47-77, 1968.