I agree with Bellardia vulgaris male. The upper parafacialia lack a consistent spot, both calypters are pale, the abdomen is strongly dusted and the distance of the dm-cu to the bend of the m vein is greater than two times the distance from the bend of the m vein to the wing margin (Rognes 1991). The images with red markings belong in the frass section as they depict nothing useful for separating species of Bellardia :-)

Here's a blowup appearing to show four presutural bristles in a row. Are these dc's? They appear to be the 2nd row out from the center (I'd call the first row acrostichals):

I've also added five more images of flies I labeled Bellardia bayeri previously, and highlighted the presutural bristles in this row. I see that there are 3,3,4,2, and 5, respectively. There always seems to be a wide gap between the hindmost and the next one forward. The fly with two bristles (one reduced to a basal pit) seems to have lost some; the flies with more than three seem to double them up at the front end. I conclude that counting presutural dorsocentral bristles is not always a reliable species character.