After a frustrating hour trying to run this to genus in Collin, I am hoping someone can give me a leg-up, please. It is 3 mm long excluding the proboscis, and came from a Malaise trap in a suburban garden in Hampshire (VC11) on 7th May 2020.
Thank you for putting me out of my misery! Of course it fits perfectly. It appears to be E. halidayi, with a distinct arista, pale stigma, small dark bristles beneath the hind femur towards the tip, and the thoracic pubescence and some of the thoracic bristles yellowish.
That's the last one of my Diptera problems sorted.. just a few other Orders to go. Very much appreciated.