#2
I think it could be C. mollicula. Due to its color variability, one can be hardly sure only on the base of a picture.
http://www.diptera.info/forum/viewthread.php?forum_id=5&thread_id=5233
Martin
#3
Thank you Martin.
I tried to key this fly again with "Muscidae of central Europe" I have now. Still key leads to C. mollicula, but still with some doubts, due to my luck of experiens with this large genus.
Nikita