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Northern Prairie Wildlife Research Center

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Macromoths of Northwest Forests and Woodlands

Oligocentria semirufescens [Notodontidae]

JPG-Oligocentria semirufescens

Wingspan 4.2 cm. Forewing is pale gray and pink with dark gray median and submarginal patches, a white apical patch, and pale brown hindwing. This notodontid is common in wet forests and widely distributed in western North America. Moths fly in midsummer. Caterpillars are generalist feeders on the foliage of flowering trees and shrubs, such as, willow (Salix), poplar (Populus), maple (Acer), and alder (Alnus).

Similar species: Schizura unicornis is smaller, forewing with a broad yellow subapical patch and small black subapical dashes.

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