Macromoths of Northwest Forests and Woodlands

Arctia caja [Arctiidae]

Wingspan 6.5 cm. Forewing is brown with irregular white bands; hindwing is orange with round black spots. This arctiid is uncommon but widely distributed at lower elevations in western North America. Moths fly in midsummer. Caterpillars are generalist feeders on foliage of herbaceous plants and small flowering shrubs.

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