Pontia occidentalis occidentalis (Reakirt, 1866);  Comments: BC to CA (S Sierra), W to N NM, N to MAN, SASK, ALTA TL: USA (Co).

Pontia occidentalis occidentalis ♀ USA: WYOMING: Johnson Co.,
Bighorn Mts., Hwy. 16 vic. jct. Poison Ck. Rd., 8315', 12-VII-2009