Beautiful insect about 1cm long
No interactions present.
The UK Moths website says this moth is not seen often so good spot Phil.
I'd like to echo what Sue said. Maybe you could get in contact with your county recorder as he/she would be interested in your sighting, I'm sure.
I've never seen a Red-belted Clearwing in the wild but I've been seeing Currant Clearwings lately (I saw them last year too).
Lat/Lng: 51.5296, -2.4755
OS grid ref: ST671812