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Prionoxystus robiniae
Large moth on my screen door, about 5 or 6 cm long (2 - 2.5 inches).
These big moths are one of my favorites! Glad to help. :-)
Here are a couple I have seen.
http://www.projectnoah.org/spottings/644...
http://www.projectnoah.org/spottings/113...