When I opened the boot of the car to put my shopping in the bags, I found what you can see in the photos. Most of them were dead, but some moved. At first I had no idea where they had come from, and such a lovely variety too. Then I found the empty mud nest on my bags. I had left them outside and those native wasps had taken advantage of them.
Hope the ones that were still alive are not poisonous and happily mulitiplying in my car.
Nature, the great opportunist. Long may it opportune.