Nice !
I found this species in my region (Besançon, east of France in north of Alpes, lower altitude Jura mountains) : first date for my region
(list : 31 species found in Franche-Comté for the moment)
habitat : dry calcareous grassland (Xerobromion-Mesobromion), with mass of fallen rocks, stony blocks, & woody zones (Prunus mahaleb, P. spinosa, Acer opulus, Cornus sanguinea, Fraxinus excelsior, etc.).
Other species found in the same station : Chrysis analis (abundant !), bicolor/illigeri, Hedychridium roseum roseum, Pseudomalus auratus.
Sphecid wasps found in the station :
Ammophila campestris & sabulosa
Passaloecus singularis (on the same shrub than P. auratus, hunts aphids?)
Tachysphex pompiliformis (a male, found next to H. roseum)
Ectemnius fossorius (largest species of the genus in Europe, not common), continuus, lituratus.
Lestica clypeata
Cerceris rybyensis (digger species)
(+ Passaloecus corniger & a Stigmus in may)
Vespidae Eumeninae :
Eumenes papillarius
(+ Gymnomerus laevipes, Ancistrocerus sp & Stenodynerus sp in may).