Posted by
Sundew on 25-07-2016 19:35
#2
Yellow antennae and not modified front legs make it
Melanostoma, but males of
M. mellinum and
M. scalare are difficult to separate. The lenght : width ratio of abdominal segments 2 and 3 is decisive but not visible in this lateral shot.
http://www.nature...d-hoverfly points to the largely yellow antennae in
M. scalare, but I cannot estimate the reliability of this character...
Regards, Sundew