L. W.  Rothschild, ?Descriptions of new Sphingidae in the collection of Dr Otto Staudinger?, Deutsche Entomologische Zeitschrift, Iris, vol. 7, pp. 297-302 + pls V-VII, 1895.

B. P.  Clark, ?New Sphingidae?, Proceedings of the New England Zoological Club, vol. 6, pp. 57-72, 1917.