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The problem with the identification is described on the commanster website itself, too:
https://www.comma...aveat.html
And it is never a good idea to rely on only one source - whatever you are searching for.
Pimplinae and even Delomerista mandibularis could be close but even if if you go back to Schmiedeknecht's Pimpla mandibularis you will not find a final answer in this case.
But anyhow we should continue to keep the eyes open.

Greetings, Eric