Papilio ornythion (Boisduval, 1836)

San Francisco, Tabasco, MX; 6/68 18 mi N. of Ciudad Victoria, Tamaulipas May 1941 female dark form

    Local from extreme S USA through dryer parts of Mexico to Yucutan and Honduras. Easily confused with P astyalus. As with astyalus, females have both light (similar to male) and melanic forms.