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Polyphemus Moth (Caterpillar)

Antheraea polyphemus


Bright green caterpillar with tiny orange/yellow bumps on it's sides. Small white hairs growing out of the bumps. Brown face and front legs and a purple "v" shape on it's back end. This particular caterpillar was approx. 21/2 inches long and 1/2 an inch wide.


Lives in deciduous hardwood forests, wetlands/marshes, urban areas and orchards. The caterpillar eats the leaves of various trees, including: oak, maple, birch, and willow.


I found this caterpillar crawling slowly across the trail in our local marsh. His bright green colour caught my eye. He was one of the largest caterpillars I had seen. I spent some time photographing him before returning him to a safe place in the marsh.

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Spotted by

Dryden, Ontario, Canada

Spotted on Aug 21, 2013
Submitted on Aug 27, 2013

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