Posted by eklans on 02-05-2021 13:57
#5
Hi Axel, we cannot see rows of black bristles behind the eyes but see the 2-3 black bristles before the wings: you are right, both of your flies are males Bombylius cinerascens.
(Veldtabel wolzwevers van Nederland, J.T. Smit)
Greetings, Eric