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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The old Lakota was wise. He knew that man's heart away from nature becomes hard; he knew that lack of respect for growing, living things soon led to lack of respect for humans too.
Chief Luther Standing Bear