No interactions present.
odd colour? Perhaps recently emerged & yet to develop mature colouration?
It is not R. fulva (which has pale elytra with dark tips), nor C. livida (which has a paler head and more black on the legs). I might suggest nigricans, but feel safer with the family ID.
recording wildlife with The Recorder's Year on www.hbrg.org.uk/TRY.html.
Lat/Lng: 52.9009, -1.2294
OS grid ref: SK519339