Hi Paul,
For the species that you're not found, I think it is
Chrysis varidens ?
This species is common in mediterranean area, I was very surprised to find it, Linsenmaier did not mention it in his synthesis of Switzerland !
But in his book, there are many species that I never found (as many Cleptes, all Elampus, all Philoctetes, not many Hedychridium, zero Holopyga, zero Colpopyga. (but I have some ideas for find Elampini, with the suggestions of Paolo Rosa
).
in Chrysididini : Chrysura simplex (I saw a mystake in my first message, I think my specimens are not Chrysura simplex but more austriaca), Spintharina versicolor, Chrysidea, and many
Chrysis (
bicolor, germari, succincta, equestris, sexdentata, indigotea, chrysostigma, consanguinea prominea, subsinuata, semicincta, calimorpha, fulgida, splendidula, obtusidens, comta, pseudobrevitarsis, rutiliventris, mediadentata, schencki).
And maybe some confusions are possibles by me (calimorpha group ; viridula group ; splendidula/insperata ; mediata/mediadentata/solida* ; rutiliventris/ruddii, problems in Cleptes, Elampus, etc) : I have no many material for these species.
* I think I have mediata ("old" specimens, cought in the 1970's with mention "nid d'Odynerus spinipes"), and maybe C. solida (slender species with a broad ovipositor, but not pseudobrevitarsis or C. brevitarsis).