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Northern Germany, Schleswig-Holstein, Pinneberg-Waldenau near Hamburg, on a railing of a bridge at the edge of the mixed forest Klövensteen (especially pine trees and oak, and birch trees), length of the fly: 5,1 mm; 6/7th of May 2021. Outsidephotos: kuv (I took the fly with me and make more shots the next day with better conditions). ... Please help to get the ID.
Kuv
(Click on the picture to enlarge!)