Thanks for the ID, Dave and Melanie.
Now, anybody else wondering why a night flying moth would be blazing white like that? You'd think they'd have been extinct long since, with no protective coloring at night. Maybe they pollenate only white flowers? Hmm, I do have lots of white flowers open right now. My white Cordia is in bloom, and it's right next to the shop.
I'm waiting until it gets dark to see if I can catch some pictures of him with his wings spread. Dave's link says his belly is blue and orange!