On fools parsley.
No interactions present.
These are difficult at the best of times Mick esp from single view images
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As suggested in my ID above, I do not think that this is a Cheilosia. Cheilosia have a distinct facial knob and lack significant hairs on the face.
My Flickr photos...
Lat/Lng: 53.2, -0.6
OS grid ref: SK9568