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A small, 4-5mm, fly busily feeding on solidag blossoms.
There are several clusters of solidago on the side of a path between fields left to fallow, about 20m from a mixed mature tree species, wooded area
20th Sept. 2021 @ 16:28 pm
Flensburg, N.Germany @ 54.759234, 9.425007

Many Thanks in advance,
Ray

All my identified insect observations are recorded on Observation.org:-
https://observati...3/species/