Open area of grassland, resting on a stone. I thought at first this might be a scorpionfly but now i doubt it.
No interactions present.
Thanks for that Syrphus, after a bit of a read it seems likely to be R. scolopaceus due to the emergence dates, the rarer species you mentioned seems to come out into Summer from around July.
Lat/Lng: 53.68945, -2.51148
OS grid ref: SD663215