Spiny Oak Slug Caterpillar

I went on vacation with my family this past September (2007) and when we returned to our campsite we found this caterpillar on our picnic table. Could you tell me what kind it is? Best regards,
Amy Vonderchek
Trumansburg, NY

Hi Amy,
If this is not a Spiny Oak Slug Caterpillar, Euclea delphinii, then it is a closely related species in the same genus. Slug Caterpillars are stinging caterpillars and they must be handled with caution.

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