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Hi Fly-readers,

This fly I saw in 'Duin en Kruidberg', Dunes near the coast in North-Holland.
First I thought it was Drosophila melanogaster, but I think it is too big for Drosophila m.
It was about 7mm long.
It looks more to a Suillia species to me, but I am not sure.
I see some dark pattern in the wings, and dark stripes on its back (next to tergite's)

Any idea?:|

Regards, Robert