Late June 2022, N Apennines (PC), Italy. Between about 09.30 and 11.30 on bright sunny days chrysidids sometimes land on our garden umbrella when it is not opened. They either fly almost immediately or run a few centimetres upwards and then fly. By far the most frequent is a small wasp with mainly greenish head and thorax but with the two lateral parts of the mesonotum red-orange. Another, seen less frequently, was a little larger and the green areas were mainly blue. In the larger one T3 is dark, slightly greenish or blueish, and shows four teeth, two close together centrally and one each side. The smaller wasp seems to have much less prominent teeth. Are these two perhaps male and female of the same species? Just looking at photos there seem resemblances to Chrysis bicolor and C. grohmanni, but perhaps the T3 teeth suggest grohmanni? Expert advice appreciated!
(PS: the fabric in the photos is actually very fine weave)