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Northern Prairie Wildlife Research Center

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Macromoths of Northwest Forests and Woodlands

Hemihyalea edwardsii [Arctiidae]

JPG-Hemihyalea edwardsii

Wingspan 6.5 cm. Wings are semitransparent, creamy yellow-orange with faint black markings; thorax is yellow; abdomen is red-pink. This arctiid is common in oak woodlands in California and western Oregon. Moths fly in September. Caterpillars feed on foliage of oak (Quercus).

Similar species: Lophocampa maculata and Lophocampa argentata both lack semitransparent wings and possess a yellow abdomen.

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