Texas Entomology, perhaps the largest insect north of Mexico. This particular speciment is a male, because it does not have a white band running across the wings.
The Black Witch has a somewhat grim set of cultural traditions around it. Apparently it is a harbinger of death in most of Central America. If it enters the house, and there is a sick person in the house, the person will die. Fortunately for us, this guy only made it to the patio. A brighter prospect is the South Texas tradition that says if the moth stays above your door, you will win the lottery! So I guess we should go buy a ticket.