Stumped

Stumped

Observation - Stumped - UK and Ireland. Description: Seen this morning crawling out into the sun. When disturbed it repeatedly opened it's wings and flashed the bright orange abdomen. When this didn't work it played dead (pic 2), after a few moments it got back up and continued flashing! I think it is so

Seen this morning crawling out into the sun. When disturbed it repeatedly opened it's wings and flashed the bright orange abdomen. When this didn't work it played dead (pic 2), after a few moments it got back up and continued flashing!

I think it is some kind of wasp but beyond that...