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Northern Prairie Wildlife Research Center

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Macromoths of Northwest Forests and Woodlands

Drepana arcuata [Drepanidae]

JPG-Drepana arcuata

Wingspan 3.7 cm. Forewing is pale yellow-brown with a smooth outer margin and hooked at the apex, postmedian line is narrow. This drepanid is common west of the Cascade Mountains. Moths fly from May to August. Caterpillars feed on foliage of alder (Alnus).

Similar species: Drepana bilineata is less common, forewing with two narrow median lines, outer wing margin is scalloped.

Return to Listing of Drepanidae

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