No interactions present.
You have posted two species here - the first (flying) is Eupeodes sp., I think, while the others are certainly Eristalis tenax - you can see the hair-bands on the eyes.
recording wildlife with The Recorder's Year on www.hbrg.org.uk/TRY.html.
OK Thanks Syrphus, will delete the flying one
Lat/Lng: 50.71853, -1.86267
OS grid ref: SZ097909