Attracted to lights near deciduous woodland.
No interactions present.
This is a case where it would be useful for both sides of the Operophtera fence to state their reasons for their identification.
I've only seen NWM once so will not agree with either but I would say here that the white(ish) hindwing pushes me towards the NWM side of the fence.
The Northern suggestion seems to be ahead. It would be interesting to know people's reasoning though.
Although NWM is usually larger, sadly we don’t have a size. However, the longer, paler, silky forewings, almost white, projecting hindwings and the resting position with wings held at a wider angle than WM all suggest O. fagata.
Lat/Lng: 52.7, -2.8
OS grid ref: SJ5116