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

Phoebis sennae marcellina ♀ wingspan 54 mm, COSTA RICA: Guanacaste Prov.:
Area de Conservacion Guanacaste, Sector Santa Rosa,
Area Administrativa, 295m, collected on 19-VII-1983,
eclosed on 23-VII-1983, foodplant Senna pallida
voucher code 83-SRNP-819, image code 83-SRNP-819-DHJ34572.jpg
image from http://janzen.sas.upenn.edu/