A worldwide community photographing and learning about wildlife
Scoliidae sp
Not sure on species, but I'm fairly sure this is a Scollid wasp. They seem to enjoy my lantanas more than any other wasps.
Garden
If I had to guess: Tachytes guatemalensis
http://bugguide.net/node/view/357646
bugguide has no submissions of this species for GA, you may want to submit it.