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Diptera.info :: Identification queries :: Diptera (adults)
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Fly from Western Norway
Bjarte
#1 Print Post
Posted on 20-12-2018 23:20
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I found two flies of this specie in the moss in mossy seaside meadow on the island Stord in Hordaland 19th of December.
They were between 3,0 og 3,5 mm.
Is this species known to any of you?

Bjarte Aadland
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Edited by Bjarte on 20-12-2018 23:45
 
Mark-uk
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Posted on 21-12-2018 00:01
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Sphaeroceridae
 
Bjarte
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Posted on 21-12-2018 00:14
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Thank you very much!
(And here dorsally)


Bj
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Edited by Bjarte on 21-12-2018 00:27
 
Bjarte
#4 Print Post
Posted on 21-12-2018 00:29
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And the head..

BJ
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John Carr
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Posted on 21-12-2018 01:20
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Subfamily Copromyzinae
 
http://www.flickr.com/photos/31715949@N00
daveb21
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Posted on 21-12-2018 10:26
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Crumomyia .sp
 
Bjarte
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Posted on 21-12-2018 10:54
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Thank you!!

Bjarte
 
Bjarte
#8 Print Post
Posted on 21-12-2018 12:44
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Are there any key for distinguishing the actual species of Crumomyia?
(Most common in Norway is C.nitida,C.roserii,C.fimetaria and C.setitibialis).


Bjarte
 
Mark-uk
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Posted on 21-12-2018 16:07
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I was thinking Copromyza (stercoraria?)

In the first photo it looks like there could be 2 rows of postocular setae?

Do you have a close up of the head from above?
 
daveb21
#10 Print Post
Posted on 21-12-2018 16:55
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Agreed 2 rows, which means it can't be Copromyza as that has one row.
Systematics of Crumomyia Macquart and Alloborborus Duda
(Diptera: Sphaeroceridae)
ALLEN L. NORRBOM and KE CHUNG KIM The Frost Entomological Museum,
Department of Entomology, The Pennsylvania State University
 
Bjarte
#11 Print Post
Posted on 21-12-2018 17:10
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I can try a closeup picture of the head from above.


Bj
 
Bjarte
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Posted on 21-12-2018 21:02
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Closeup head from above.


Bj
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Bjarte
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Posted on 21-12-2018 21:03
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The beautiful wing too.


Bj
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Mark-uk
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Posted on 22-12-2018 14:39
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100% Copromyza

the 3rd section of vain M looks longer than the 4th, so should be Copromyza stercoraria
 
Ectemnius
#15 Print Post
Posted on 22-12-2018 15:56
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Hi,

I wouldn't be so sure of the 100% Copromyza...

Copromyza lacks the heavily infusctaed crossveins in the wing. Has a bronze sheen on the body. Has shorter bristles on the thorax.
Since no postocular setae are clearly visible in the photo's or the surstylus I'd stick to Copromyzinae sp.

Kind regards,

Ectemnius
 
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