2-2 1/2 inches, “fat” body, feathery antennae. Hanging on outside window at my home in Southwest Virginia, Scott county, foot of Clinch Mountain. Many thanks for your service.
You have one of the giant silkmoths that has just emerged…this is the Promethea moth or sometimes called the spicebush silk moth. This looks like the lighter colored female, so let her lay eggs on nearby spicebush or sassafras, wild cherry, tulip, or sweet gum trees and look for the bluish green larva. They are truly beauties when they have first emerged…so bright colored and large.