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Project Noah Nature School
Pontia occidentalis
Upperside of forewing has marginal markings that are lighter than the submarginal stripe. Below, forewing tip and hindwing have veins outlined with gray-green. Short-day spring and fall forms have more prominent markings.
Alaska south to central California, northern Arizona and northern New Mexico; east to North Dakota and central Ontario.
Spotted on Jul 27, 2020
Submitted on Jul 28, 2020
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