Thanks for sharing the pic and also IDing these little guys- Yours are so pretty! For some reason their coloring and patterns remind me of Southwestern Indian pottery. I've had hornets hatch from a few old nests I had hung from the ceiling and even they were kinda dopey acting. I put on gloves, grabbed a big wad of paper towels to catch them and tossed them outside. My neighbor freaked out when he was cutting shrubs and a small hornet nest dropped to the ground. We used his longer- handled trimmer and dragged the branch behind the shed and away from people without incident. Only time a wasp got me was when it was trapped in my car. I rolled down the window to shoo it out, but it nabbed me right in the armpit-OUCH! It's aggression that sets them off. You seem to enjoy your wasps too, we had to show my granddaughter and neighbor's kids that Cicada Killers and Carpenter bee males were just buzzing us to defend their territory, They can't even sting, it's just an interesting part of nature and not something to automatically fear! -right?
We're lucky with no deer in the immediate area and so can grow all the Eupatorium wanted...
Here's two lovelies from last summer:
