No interactions present.
Hard to discriminate on purely morphological grounds.
A female with ovipositor, so at this time of year, I would guess that this is a vegetarian species of sawfly. With predatory/parasitic wasps/ichneumons, the prey/host has to be available first.
Some kind of Parasitica, not a sawfly.
Lat/Lng: 51.3, -0.8
OS grid ref: SU9057