The Pandorus Sphinx Moth (Eumorpha pandorus) has a wingspan of 3.25 to 4.5 inches. That’s mighty big. Their host plants are vines: peppervine, grape, and Virginia creeper. Adults have a lifespan of 10 to 30 days. During that time they consume nectar from the flowers of bouncing bet, white campion, and petunia. They’re found in the east, southeast, and central parts of North America, and on my cabin’s screen.