What is this insect?

Asked November 28, 2017, 12:45 PM EST

A friend took these pictures yesterday in the USDA building parking lot on River Road in College Park. It's about three inches long and grabbed hold of the pavement tightly when my friend tried to move it with the leaf beside it. We wondered what kind of insect this is. Many thanks!

Prince George's County Maryland

1 Response

This is the magnificent caterpillar of a polyphemus moth, which will also be big and magnificent. They are green, almost fluorescent. He was tenacious because he needed to find a sheltered place to spin his cocoon and pupate for the winter.