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It is very quiet on this thread.
I am not sure, but I have an opinion.

It reminds me of Eginia ocypterata.

That is a difficult fly to identify from a picture.
It is difficult to assign at family level at all. It looks like a scatophagid, parasite with meral bristles as in tachinidae, but now placed in Muscidae.

Therefor picture could be compared with specimens in collection. Unfortunatedly I do not have a specimen in my collection. It is rare.

I found some drawings of Eginia. Hindlegs have more bristles in Eginia, but that might be a difference between male (on drawing) and female (on this picture?).

Black, did you collect specimens? And where did you take the pictures?

Liekele