Posted by Sundew on 17-05-2021 15:19
#3
Might be
M. mellinum, but with uncertainty. The pictures do not show the necessary details that you can learn from the key of p. 129 in
https://www.resea..._Syrphidae. The pictures in
https://www.dipte...pid=196258 are much better, and even there we had a controversial discussion (BTW Fred Fly = Piet Nord). So
Melanostoma spec.
Regards, Sundew