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A tricky one Volker.
For Calobata petronella one would expect to see brown humeri. A vague suggestion of that in the top picture but not in the third one.
The ovipositor shape could be a bit of a clue, in C. petronella it starts bulbous then narrows. I'm more inclined towards Neria cibaria where the ovipositor is black with a kink.
Take a look at Calobata petronella http://micropezid...my/term/15
and Neria cibaria http://micropezid...my/term/20