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Northern Prairie Wildlife Research Center

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Caterpillars of Eastern Forests

Juvenal's Dusky Wing (Erynnis juvenalis)

JPG-Photo of Juvenal's Dusky Wing

Body chalky or waxy green dabbled with numerous pale spots. Head somewhat angulate to either side, deep reddish brown, with 3 pairs of orange spots, upper 2 pairs may be partly joined. Subdorsal stripe sometimes yellowish, occasionally indistinct. Other oak-feeding species of Erynnis occur in eastern forests; identifications should be confirmed through rearing. Food: oaks. Caterpillar: April until leaf fall, caterpillar overwinters in fallen leaf shelter; 1 generation.

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