Looking at the full size image, there appears to be a small light blue marking on each of the legs.
No interactions present.
definitely not the genus Ichneumon which does not have an exserted ovipositor.
I'm still trying to get my head around Zoological nomenclature. I guess I was trying to refer to the family (now having looked it up) rather than the sub-family. Thanks for the information, very useful to know how to separate the sub-family groups.
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standard name endings in Zoology in order of decreasing rank:
Genera, subgenera, species and subspecies have no standard endings.
Hope that helps
Lat/Lng: 51.3, -0.1
OS grid ref: TQ3468