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Northern Prairie Wildlife Research Center

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Caterpillars of Eastern Forests

Purple-crested Slug (Adoneta spinuloides)

JPG-Photo of Purple-crested Slug

Pale green with purple and yellow dorsum; somewhat flattened above, sloping to tail end. Undulating purple dorsal stripe widest at second or third abdominal segment. Dorsum with 3 anterior and 1 posterior pair of enlarged orange-red warts, each armed with numerous stinging spines. Food: many forest trees and shrubs, often on oaks and cherries. Caterpillar: August to October; 1 generation in North.

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