Can you identify this catapiller for me?

Asked August 9, 2018, 7:45 PM EDT

Found this fellow crossing my back yard.

Genesee County Michigan

3 Responses

It is probably the caterpillar of the polyphemus moth, one of the largest moths in Michigan. The other possibility is the luna moth, but I've raised both a number of times and it looks more like a polyphemus. See https://www.butterfliesandmoths.org/species/Antheraea-polyphemus

I believe it would be the Polyphemus caterpillar. I have seen the adults before and the cocoon but I don’t recall seeing a caterpillar. Thanks for your identification.
Dean