Never seen them before, but a few years ago I walked over a Yellowjacket nest.
Them things were chasing me so, evasive maneuvers as I ran into my house and slam the door. Safe.
NOPE!
With the thrill of the chase over I felt stinging on my legs and heard buzzing in my pants.
Four of them went up my pant leg and were now stuck in my pants stinging my leg.
Down go the pants, out come four raging yellow stingers, they were angry and now flying in the living room and kitchen.
I get low and shut all doors to the bedrooms containing them as best as can, then make my way to the closet as these buzzers are buzzing all over the place.
Pull out the vacuum hose and all the length attachments for as long a reach as possible, then the hunt was on.
Turning that sucker on, I am swinging that suck wand all around them and they are still in a deep raging fit trying to get me.
Thunk... there went one... Swing, swing, thunk... there goes two.
The other two got tired and are now gently buzzing around the window, a slow creep up and Thunk... three. Four goes flying back with a second wind of kill or be killed.
Staying low the sword game was on, this stinger is fast and was successfully preforming evasive maneuvers pattern delta, well I also saw that episode of Star Trek and a successful intercept was preformed.
Thunk... Four.
That was all them...
A vacuum was the only safe way to get them son of a stingers once they were in my house.