Small green insect

Asked July 14, 2013, 10:43 AM EDT

This was on my arm while I sat on deck it seems to of stung and my arm swelled some. I made a paste out of baking soda and water to put on it & seems to be helping some. Do you know what it is?

Smith County Texas

1 Response

One of our stinging slug caterpillars, possibly crowned slug, Isa textula, or a close relative. The little hairs arising from the lobes on the body of the caterpillar are stinging spines. Slug caterpillars of different stripes and colors can be found throughout the US. Some are rather colorful, but yours is fairly typical of the family (Limacodidae). Memorize its appearance and avoid touching them.