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Northern Prairie Wildlife Research Center

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Caterpillars of Eastern Forests

Yellow-shoulder Slug (Lithacodes fasciola)

JPG-Photo of Yellow-shoulder Slug

Green with yellow markings, surface corrugated with nonstinging setae recessed in depressions. Dorsum flattened then angled downward. Indistinct yellow subdorsal stripe most pronounced over thorax and toward back of body. Yellow spots down dorsum, about spiracles, and in 2 lines below spiracles. Apoda caterpillars similar but with dark shade above subdorsal stripe. Food: many forest trees and shrubs. Caterpillar: July to September; 1 generation in North.

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