Eupeodes corollae female · žiedmusė ♀

EN · migrant hoverfly
DE · Gemeine Feldschwebfliege
PL · bzyg nadobny

https://en.wikipedia.org/wiki/Eupeodes_corollae
The aphidophagous larvae appear to use a variety of ground-layer aphids in a wide range of habitats including crops. Adults fly from March to November and visit a tremendous variety of flowers, even those of window boxes high up on tower blocks.

E. luniger?
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