Anthocharis thoosa colorado Scott & M. Fisher, 2008;  Comments: SW CO, SE UT, NW NM, [NE AZ] TL: USA (Co).

Anthocharis thoosa colorado ALLOTYPE ♀ [CSUC].
Specimen courtesy of the C. P. Gillette Museum of Arthropod Diversity, Fort Collins, Colorado   —   © Nick V. Grishin