Polyphemus Moth
Antheraea polyphemus
Notes:

I happened to find this guy while mowing the lawn. A few years earlier, I found a polyphemus caterpillar in the same area. It was the largest caterpillar I had ever seen. Unfortunately, at the time, I didn't have a camera.

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I think the environment should be put in the category of our national security. Defense of our resources is just as important as defense abroad. Otherwise what is there to defend?
Robert Redford
Yosemite National Park dedication, 1985