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Northern Prairie Wildlife Research Center

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Macromoths of Northwest Forests and Woodlands

Leptarctia californiae [Arctiidae]

JPG-Leptarctia californiae

Wingspan 3.0 cm. Forewing is black with small white spots; hindwing is all black or with variable amounts of black bands and white, yellow, orange, or red markings. This arctiid is common and widely distributed in western North America but seems to occur in local colonies. Moths fly during the day in late May through June. Caterpillars are generalist feeders on foliage of herbaceous plants.

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