#1
this fly was about 7-10mm,
found in Germany, Baden-Württemberg, Radolfzell, altitude 390m, 8. 6. 2022
best wishes
Angelika/Reimund
Posted by
Sundew on 26-07-2022 22:09
#4
This is a bit tricky! To discriminate between
C. nemorum and
Xylota abiens, we need to see the abdomen (segments wider than long in
C. nemorum), but here it is hidden under the wings. Then, the shape of the hind femora is important. In
C. nemorum they are expanded towards the apex but then narrowed at the outermost tip, whereas in
X. abiens the hind femora are not expanded and their underside is rather evenly curved (see
https://www.flick...8435796193). The left hind femur in the lowermost picture tends to show the
C. nemorum type, that's why I lean towards this species.
Regards, Sundew
#5
Hello Claudia,
thanks to you for your answer and explanation.
We see the different and sorry, there are no more pictures.
We will call this fly Chalcosyrphus nemorum and hope it is OK.
greetings
Angelika/Reimund