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Silkwormsis this caterpillar poisonous?
I was mowing the lawn and brushed against this holly tree and felt a sting/burn on my arm. I have welts on my arm and I think I brushed against these caterpillars. Are they poisonous or anything? Thanks
Marlin

Hi Marlin,
Are you in Brazil or Virginia???? Exact identification is aided by a global location. These are caterpillars in the genus Automeris which has caterpillars with mildly stinging spines. The effect of the sting wears off without any lasting effect. If you are in the eastern U.S., these are Io Moth Caterpillars, Automeris io. There are many closely related species in tropical America, and that is also a possibility.
Thanks, I am in Miami, FL

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