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Northern Prairie Wildlife Research Center

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Caterpillars of Eastern Forests

Sigmoid Prominent (Clostera albosigma)

JPG-Photo of Sigmoid Prominent

Coloration variable, ground color dark with broad yellow to orange stripes and abundant downy, pale hair. Head dark brown, vertex often with paler chestnut spot. Dorsum with 4 yellow to orange stripes, vague in some individuals. Medial black wart on first abdominal segment nearly twice size of wart on eighth segment. Solitary in leaf shelter by day. Food: willows and poplars. Caterpillar: June to September; 2 generations.

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