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Hello!

I know this is not the first time I ask here about this species, but with every new individual I'm not sure again :-/.
This photo I took yesterday, Oct-03, here in Ostwestfalen/Germany. The fly was about the size of a Syrphus ribesii (perhaps slightly larger), but it did not behave like one. It only visited every blossom for a very short time, making it very difficult to photograph.