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Species   Colias occidentalis

Colias occidentalis occidentalis

Scudder, 1862

Western Sulphur

[= nortepacifica]

Colias occidentalis

Scudder, 1862 (SW Oregon
segregate)

Western Sulphur

S Cascades, far NE Siskiyous,
Jackson -Josephine Co., OR

Colias occidentalis chrysomelas

Hy. Edwards, 1877

Western Sulphur