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Diptera.info :: Identification queries :: Diptera (adults)
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Ulidiidae - Euxesta costalis
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#1 Print Post
Posted on 06-06-2017 08:36
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Location: Switzerland
Posts: 145
Joined: 06.04.17

 Found on 31. Mai 2017 near Kerzers, Switzerland, 437 m, on a woodden armrail, waving its wings and abdomen.

Size: 5 mm

Could it be an Euxesta sp.? Maybe E. notata?

Kind regards,
Ov
Ocellar view attached the following image:


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Edited by Ocellar view on 06-06-2017 12:05
 
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#2 Print Post
Posted on 06-06-2017 08:36
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 second image
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[91.9Kb]
 
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#3 Print Post
Posted on 06-06-2017 08:36
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Location: Switzerland
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 third image
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[93.18Kb]
 
Paul Beuk
#4 Print Post
Posted on 06-06-2017 10:19
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 Euxesta costalis, I think
Paul

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Paul Beuk on https://diptera.info
 
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#5 Print Post
Posted on 06-06-2017 12:05
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 Thank you, Paul!

Best,
Ov
 
John Carr
#6 Print Post
Posted on 06-06-2017 13:04
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 I think Euxsta notata. According to the key by Curran (1935) costalis has a larger wing spot.
 
http://www.flickr.com/photos/31715949@N00
Paul Beuk
#7 Print Post
Posted on 06-06-2017 15:38
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 Could well be, see https://www.resea..._in_Europe
Paul

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#8 Print Post
Posted on 07-06-2017 08:16
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Location: Switzerland
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 Thank you John and Paul! It is great to have the opinion of experts.

So it is either an invader or the similar native. Since the wing spot rather speaks for E. notata, I assume this to be the case.

Thanks again and kind regards,
Ov
Edited by Ocellar view on 07-06-2017 08:17
 
John Carr
#9 Print Post
Posted on 07-06-2017 11:26
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 All Euxesta are native to America. E. costalis was described from the West Indies, notata from the United States.
 
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Nosferatumyia
#10 Print Post
Posted on 15-11-2017 21:58
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 Yes it is notata.
Val
 
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