No interactions present.
Not a bee - eyes too large, and only one pair of wings. It is almost certainly a hoverfly. Possibly Myathropa Florae.
I have changed the title and the identification, thanks for your ID.
The pale tarsi confirm E. pertinax. M. florea is much yellower and has a broken yellow band across the thorax.
recording wildlife with The Recorder's Year on www.hbrg.org.uk/TRY.html.
Lat/Lng: 51.0, -1.0
OS grid ref: SU7333