---

Hi Nikita,

By sight! ;)
There is a marked difference, but you'll need a good magnification of the wingbase. The genus Urophora belongs to the subfamily Myopitinae which is characterised by the convex closed Anal cel, whereas all other subfamilies have a more or less pronounced triangular distal extension at the bottom side of the anal cel.
But as I said you'll need a good magnification of the wingbase, in your picture here it's impossible to tell.

Best wishes,

John