Posted by Axel D on 15-10-2021 15:58
#1
Hello
I found yesterday this fly in a grassland part of a park where
Medicago sativa is abundant.
I think it's either
Euthycera alaris or
E. stichospila because of the wing pattern and the head spots shape, but I don't know how to distinguish this two species (wing pattern is supposed to be a little different ?). Both species or known to be mainly Mediterranean species, but
E. stichospila has been recorded from Belgium and the North-East of France according to
this article. However I don't know if
E. alaris can be found far from the Mediterranean coast as for my specimen.
Can you help me to identify the species ? I still have the fly so I can make other photos.
Found in Gagny, Seine-Saint-Denis, Île-de-France, France on the 14th of October 2021
Body length : around 7 mm
Thank you in advance.
Edit : I found a determination key in
this article and in a similar one in another.
7. Wings with pale spots concentrated into distinct groups ...... alaris Vala
- Wings with pale spots not concentrated into groups ..............8 [including stichospila]
I can't see the groups of pale spots so it would be
stichospila ?
Edited by Axel D on 15-10-2021 19:19