Hello,
I think it's a male N. cibaria, but I've never seen almost completely black legs before.
Location: Nortwestgermany, near an old gravel pit, size about 9 mm, photos taken on 20.05.2023.
Greetings, Konrad
Hi Konrad,
The ovipositor is a little difficult to make out, but as far as I can see this is indeed N. cibaria. And yes sometimes the legs are quite dark.
Greetings,
Ectemnius