What reaction is commonly reported after contact with the stinging spines of Io moth caterpillars?

Answer

Localized pain, itching, redness, and sometimes swelling.

Contact with the venom-containing spines can cause a painful reaction, reported by observers to result in localized pain, itching, redness, and occasionally swelling.

What reaction is commonly reported after contact with the stinging spines of Io moth caterpillars?
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