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With a row of pv setae on t3 it could indicate Delia and with two strong ad setae on t2 it could be Delia antiqua, but the prealar is too strong strong and almost at the same lenght as the posterior notopleural seta….and the strong curved spur on the foretibia also seems not present.
With such strong prealar it could be A. liturata (2 ad on t2 + some pv on t3 and tergite VI black shining), but the crossveins seems not infuscated.
Maybe we have to look at Botanophila and B. striolata also has two strong ad on t2, some pv setae on t3 ( not as much as your photos show) and tergite VI black shining.
So…. maybe you can check for B. striolata at first…?!

Johanna