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Diptera.info :: Identification queries :: Diptera (adults)
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Huge thorax and skinny little abdomen
Stephen
#1 Print Post
Posted on 27-05-2007 19:46
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Location: West Virginia USA
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I like how this fly is hugely robust on the thorax and then has a thin little abdomen. Scathophagidae, right? Can anyone shed any light on ID to genus?

West Virginia USA, 26 May 2007, alongside a very small woodland stream. Length about 6.4 mm.
Stephen attached the following image:


[66.55Kb]
--Stephen

Stephen Cresswell
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Stephen
#2 Print Post
Posted on 27-05-2007 19:47
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Here is a frontal view of this fly.
Stephen attached the following image:


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--Stephen

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jorgemotalmeida
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Posted on 27-05-2007 19:49
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Lauxaniidae... Sapromyza sp. ? (it is a test, as Nikita used to says) Grin
 
http://www.flickr.com/photos/superegnum
Stephen
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Posted on 27-05-2007 20:02
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And just to make it interesting, is this one same family? It is a different individual. What huge eyes (so, a male?)

This one has an even smaller abdomen that doesn't seem to match the huge thorax.

Same location as the first fly, a couple of days earlier, size just a little smaller.
Stephen attached the following image:


[111.22Kb]
--Stephen

Stephen Cresswell
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Stephen
#5 Print Post
Posted on 27-05-2007 20:03
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Here is a look at the front of fly #2.
Stephen attached the following image:


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--Stephen

Stephen Cresswell
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jorgemotalmeida
#6 Print Post
Posted on 27-05-2007 20:22
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different sexes. one female and the other is male. Grin let?s go wait for real experts. Grin
 
http://www.flickr.com/photos/superegnum
Nikita Vikhrev
#7 Print Post
Posted on 27-05-2007 20:29
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I think it is Anthomyiidae, genus Pegomya. It looks very much alike our Pegomya testacea, which is only Palearctic species.
Nikita
Nikita Vikhrev - Zool Museum of Moscow University
 
jorgemotalmeida
#8 Print Post
Posted on 27-05-2007 20:32
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in the first case, anal vein doesn?t reach wing margin. is it one of exceptions among Anthomyiidae? Smile
 
http://www.flickr.com/photos/superegnum
Stephen
#9 Print Post
Posted on 28-05-2007 11:09
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Thank-you Jorge, Nikita! Time for me to go and look at some pictures.
--Stephen

Stephen Cresswell
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Nikita Vikhrev
#10 Print Post
Posted on 03-06-2007 12:40
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I'd cancel my compare with P. testacea, but I still think it is some Pegomya of Anthomyiidae.
Jorge: the fact that it seems by photo that
anal vein doesn?t reach wing margin
doesn't mean that it doesn't reach it really, it is bad visible character for photo...
Nikita Vikhrev - Zool Museum of Moscow University
 
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