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There are two characters in your last photo which are helpful. The membranous projections of the fifth sternite, which are quite long and appear rather squarish, suggest quinquemaculata. Also the ad-seta on the mid tibia is either very small or absent, another character for quinquemaculata.

Your photos are very good for depth of field and clarity, especially as they are taken in the field presumably without any computer montage. In this case it would be OK to suggest Anthomyia cf. quinquemaculata.

Other photographers should strive to reach this standard I am not a photographer but a taxonomist who draws all the structures. Perhaps I will try to post a figure of the fifth sternite of quinquemaculata but they are in PDF format.