Ichneumon Wasp?

Ichneumon Wasp?

Observation - Ichneumon Wasp? - UK and Ireland. Description: I would really appreciate help with identification of this insect. I think it is an ichneumon wasp

I would really appreciate help with identification of this insect. I think it is an ichneumon wasp but have been unable to match it (the nearest I have got is Ichneumon terminatorius but that is rather unlikely), Grateful for any advice or suggestions as to where to look.
We spotted it beside the cycle path - a bramble hedge lined verge or border with grasses, umbellifers, angelica and other flowering plants.