Yup...wasps are cool..I'm a fan too. I find if you respect them they usually won't sting. First shot is cool but I probably would have gotten closer and flashed him in the face with the SB-600. I probably would have gotten a big welt, but would have been a cool shot.
I hate wasps, these pictures however are very interesting.
It's cool how you were able to capture shots like this, being though wasps are relatively aggressive.