Thank you for your reactions. I looked at various pictures of both species on the internet but as a layman I find it very difficult to decide which one it is, especially since I do not trust all determinations I find there. I tend to choose Pimpla rufipes but I hope someone can confirm this.
This specimen u photographed belongs to subfamily Pimplinae. Amblyteles is a totally different subfamily and clearly not your specimen, although it also has reddish legs. Wether its a Pimpla spec. i dont know and in my opinion its not quite possible to ID the species by photo. But Pimplinae should be certain.