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Macromoths of Northwest Forests and Woodlands

Euchlaena tigrinaria [Geometridae]

JPG-Euchlaena tigrinaria

Wingspan 3.9 cm. The wings are pale orange and speckled with many dark spots. This geometrid is common 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 serviceberry (Amelanchier alnifolia), red-stem osier (Cornus stolonifera), hazelnut (Corylus cornuta), and willow (Salix).

Similar species: Euchlaena madusaria wings lack the dark spots, forewing with a bicolored yellow-black patch at the apex, most common east of the Cascade Mountains; Euchlaena johnsonaria also lacks the dark spots, has scallopped wing margins, and varies from pale yellow to brown.

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