Subject: ID Stinging Slug Caterpillar, MD, USA
Location: Northern Baltimore County, Maryland, USA
July 25, 2015 5:09 pm
Can someone ID this caterpillar found this week in northern Baltimore County, MD, USA? It was found on a winterberry holly bush (Ilex species). I suspect that it’s a stinging slug caterpillar of some kind, but I can’t find a species that that matches the coloration.
Signature: K Smith

Spiny Oak Slug Caterpillar

Spiny Oak Slug Caterpillar

Dear K Smith,
The coloration of the Spiny Oak Slug Caterpillar,
Euclea delphinii, appears to have considerable variation.  This image from BugGuide is quite close to your individual.

Location: Northern Baltimore County, Maryland

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