Macromoths of Northwest Forests and Woodlands

Nematocampa resistaria [Geometridae]

Wingspan 2.5 cm. Forewing is falcate, pale cream to deep yellow with broad purple-brown borders and narrow wavy lines. This geometrid is common and widely distributed in western North America. Moths fly in late summer. Caterpillars feed on the foliage of flowering trees, shrubs, and herbaceous plants such as maple (Acer), alder (Alnus), snowberry (Symphoricarpos albus), oak (Quercus), and mint (Mentha).

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