Posted by Dmitry Gavryushin on 27-03-2008 10:49
#1
March 25, 2008, Naro-Fominsk, Moscow region, Russia. Size 3.5 mm.
The wing (with typical dark spot at the base of
M1).
Posted by Dmitry Gavryushin on 27-03-2008 10:52
#2
Additional details (scale isn't uniform). I understand that the presence of
dm seta (red arrow) rules out
S. helicivora, but maybe there's more possible candidates...
Posted by Paul Beuk on 12-06-2019 10:43
#3
To solve a blast from the past: the two species were synonymized in 1979 (!) by Disney in a paper in Entomologist's Monthly Magazine. The feature of those setae proved to be intraspecific variation.