I found this beauty in the Lot area, Southern France, end July - early August. I saw them almost exclusively on Wild Carrot (Daucus carota), including a dead specimen curled up in a contracted umbel out of flower.
The final tergite is brilliantly blue in contrast with the red-pink rest of the abdomen - maybe this helps in IDing it?
All observations in flower rich grassland near forest.
Thanks for your attention,
Cor Zonneveld
www.corzonneveld.nl