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Northern Prairie Wildlife Research Center

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Macromoths of Northwest Forests and Woodlands

Euxoa auripennis [Noctuidae]

JPG-Euxoa auripennis

Wingspan 3.6 cm. Forewing is contrasting black and lavender with large discal spots. This noctuid is common and widely distributed in western North America occurring in ponderosa pine and juniper-pinyon pine forests. Moths fly in late summer. Caterpillars feed on herbs at the soil surface.

Similar species: Euxoa costata forewing is red with a white costal margin and white discal spots, abundant in ponderosa pine forests east of the Cascade Mountains; Euxoa basalis forewing is red with a white basal patch instead of the white costal margin, abundant in the Rocky Mountain region.

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