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Close-up photo of adult male Checkered White butterfly

Lost Lake, Linn Co, August 26 - male

Checkered White

Pontia protodice

Size: 1.5 - 2.0 inches wingspan

Key ID features:  Extremely variable and challenging to ID with certainty.  Above, white with black, brown or charcoal checks, bars or chevrons. Below yellow-veined with brown or olive chevron marks.

Similar species:  Western white has darker and more extensive or continuous black or gray markings  on forewing tip above, and greener markings  below, especially along veins.


Host plant: A wide variety of both weedy and native cruciferous species.

Habitat: Arid habitats, both disturbed and undisturbed.

Range: Primarily in southeast Oregon and west of Cascade Mtns, with scattered records in the Willamette Valley and Coast Range.

Season: Earl June to late September

Abundance: Uncommon in Oregon


Conservation Status: Secure

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