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

Phoebis sennae marcellina ♀ wingspan 57 mm, COSTA RICA: Alajuela Prov.:
Area de Conservacion Guanacaste, Sector San Cristobal,
Potrero Argentina, 520m, collected on 10-I-2001 as penultimate instar,
eclosed on 28-I-2001, foodplant Senna obtusifolia
voucher code 01-SRNP-118, image code 01-SRNP-118-DHJ34575.jpg
image from http://janzen.sas.upenn.edu/