Brachonid Wasps

Brachonid Wasps are a family of Ichneumon Wasps; they have stockier abdomens and a different pattern of veins on the wings.
Like all Ichneumons, the females are parasites and may have long ovipositors to lay eggs in nesting holes or bodies of host species.

Brachonid ichneumon wasp
Brachonid wasp
Brachonid wasp
A female Brachonid Wasp with a long ovipositor on thistle in NW London.
Brachonid ichneumon wasp
Brachonid ichneumon wasp