No interactions present.
Scaeva pyrausti or S. selenitica. The main difference I know of is the colour of the stripes: white in the former, yellow in the latter. But I'm not sure of the colour here - looks yellow on my monitor.
On selenitica the lunules are yellow and extend further forward on their outer end; on pyrastri, the lunules are more cream and the inner end of the lunule is furthest forward. This looks to be pyrastri on both counts.
My Flickr photos...
Lat/Lng: 50.3493, -3.822
OS grid ref: SX704515