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Diptera.info :: Identification queries :: Diptera (adults)
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Euthycera alaris or stichospila ?
Axel D
#1 Print Post
Posted on 15-10-2021 15:58
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Location: France
Posts: 153
Joined: 16.10.15

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 ?
Axel D attached the following image:


[180.73Kb]
Edited by Axel D on 15-10-2021 19:19
 
Axel D
#2 Print Post
Posted on 15-10-2021 15:59
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Side view :
Axel D attached the following image:


[166.05Kb]
 
Axel D
#3 Print Post
Posted on 16-04-2022 15:19
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Location: France
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Since this topic with a close fly was answered, I hope I could have an answer too.
 
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03 July 2022 00:29
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