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Macromoths of Northwest Forests and Woodlands

Erannis tiliaria [Geometridae]


JPG-Erannis tiliaria

Females are wingless. Male wingspan 4.0 cm. The wings are cream colored to pale yellow with fine speckles and dark wavy bands, the outer bands varying from solid black to pale brown. This geometrid is common and widely distributed in western North America. Moths fly in late fall. Caterpillars are generalist feeders on the foliage of flowering trees and shrubs, notably maple (Acer), alder (Alnus), cherry (Prunus), oak (Quercus), rose (Rosa), and willow (Salix).

Similar species: Phigalia plumogeraria forewings and hindwings are pale gray with thin black lines, moths fly in early spring.


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