Usual caveats apply ("it looks like this but I don't know whether I can rule out similar species").
No interactions present.
The only confusion species is Pyrochroa coccinea but this has a black head.
Chris Brooks - www.dragonfly-images.co.uk
My Flickr site - www.flickr.com/photos/ceb1298
That was the only other species I could find, and as you say the head colour rules it out, but I don't have an in-depth beetle book, so thought I'd err on the side of caution.
Lat/Lng: 52.62082, 1.32719
OS grid ref: TG253077