In pursuing knowledge and names of insects, I always find there’s more to find. I was sure — absolutely sure I tell ya! — this featured wasp was in family Scoliidae. So naturally, obviously, I was wrong. I was going to just tag it in that family, but while there were some similar looking wasps there, nothing quite matched. I worked backwards from Scoliidae, and was rewarded to find two more taxonomic families with generally similar-looking species. Thankfully, they aren’t big families.
Longstoryshort, I found family Thynnidae, and thanks to those red-orange antennae, I feel pretty confident this is Myzinum quinquecinctum. At least a Myzinum sp., definitely…definitely among the stinging wasps — that is to say, definitely a wasp…. I’m kidding, I’m pretty sure I’ve got it, but I know I’ll make a mistake again. That’s how it goes!
BugPhoto.net 
Nice picture! These wasps are commonly found in our community pool. Before they drown, I let them latch onto my finger and dry off a little before they fly away–without stinging. The males of the species have a skinnier abdomen with an upturned fake ‘stinger’. The females, like the one in your picture, have a larger abdomen with a downturned stinger that is real but they usually stay on the ground. However these wasps are not likely to attack humans. Beetles are their targets.
Thanks, John! Nice to hear from another friend to our little flying friends. :)