Hi everyone! I've caught these two specimen in the garden of my university (in Milan, Italy) on 29.06.21. I think they could be male and female of Hedychrum nobile, someone can confirm my ID?
I didn't think that there are still cuckoo wasps in the garden of the Univerisity!
Ok, the first one is an Hedychridium of the roseum group. The second is a female of Hedychrum, possibly nobile. You have to examine the last metasomal sternum and examine the shape of the median lamella, there are some images available in the forum.