Image from: Godman, Frederick DuCane, and Osbert Salvin 1894-95. Biologia Centrali-Americana. Insecta. Lepidoptera-Rhopalocera. London, Dulau & Co., Bernard Quaritch. 2: 377-384 (Nov), pl. 84 (Jan 95) f. 18
Image courtesy Missouri Botanical Garden. http://www.botanicus.org/