Phoebis sennae marcellina (Cramer, 1777);  Comments: SW USA (strays far N), S TX through Panama, most S. America TL: Surinam.

Phoebis sennae marcellina last instar,
COSTA RICA: Guanacaste Prov.: Area de Conservacion Guanacaste, Sector Santa Rosa,
Area Administrativa, 295m, collected on 10-XI-1983 as last instar, photographed on 15-XI-1983
foodplant Senna pallida
voucher code 83-SRNP-1165, image code 83-SRNP-1165-DHJ6065.jpg
image from http://janzen.sas.upenn.edu/