Luna moth (Actias luna)
It was a treat to find this intact luna moth. Usually, I find only the wings - apparently these moths are quite tasty to various nocturnal predators - or well worn moths that are tattered and tired. This one has one small tear in its right forewing, but aside from that it is in perfect shape.
Judging by the large, feathered antennae, I am inclined to believe this one is a male.