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Mustard White
Pieris marginalis
AKA Margined White
Size: 1.25 - 1.5 inches wingspan
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Key ID features: Above milky-white, with black shading basally (near the thorax). Below, hindwing veins faintly lined with brownish back bands. Summer brood males usually nearly pure white.
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Similar species: Cabbage White has black spot in center of FW.
Host plant: Cresses, toothworts and other mustard species.
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Habitat: Openings in moist forests, usually coniferous.
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Range: Throughout western Oregon west of the Cascades, and in Ochoco, Wallowa Blue, and Warner Mtns.
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Season: Late March to early October
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Abundance: Common
Conservation Status: Secure
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