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Diptera.info :: Identification queries :: Diptera (adults)
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Images from Japan. Brachycera or Nematocera
Xespok
#1 Print Post
Posted on 06-10-2005 10:26
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Normally I can separate most Diptera to at least these two categories, but with this one I have problems. Unfortunately the image is not fine enough to count the number of antenna segments. The antennae are very long, which hints to Nematocera, the overall structure however suggests Asilidae or Empididae.
www.diptera.info/forim/5-0819-1.jpg
Edited by Xespok on 06-10-2005 16:19
 
Teglagyar u. 30.
Paul Beuk
#2 Print Post
Posted on 06-10-2005 11:42
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Unfortunately I cannot make out the wing venation because the essential part is blotted out by the darker background. Any chance it might be more clearly visible in the original image?
Further, it reminds me of Trichopeza longicornis of the Empididae but I do not know if that species occurs in Japan or even related genera/species.
Paul

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Xespok
#3 Print Post
Posted on 06-10-2005 16:36
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This genus does not occur in Honshu.

Based on the database the following genera should occur:

Empidinae: Empis, Rhamphomyia, Hilara, Oreogeton,

Clinocerinae: Trichoclinocera, Acanthoclinocera, Heleodromia, Brachystoma

Hybotinae: Hybos, Syneches, Chillcottomyia,

Ocydromiinae: Bicellaria, Euthyneura, Euthyneura, Leptopeza, Trichina,

Tachydromiinae: Symballophthalmus, \

Hemerodromiinae: Xanthodromia, Chelifera, Dolichocephala

Is this Trichopeza Clinocerinae?

But I think there might be quite a few species of Empididae to be described in Japan.


 
Teglagyar u. 30.
Paul Beuk
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Posted on 06-10-2005 20:28
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Of all these genera, the only one I do not really know is Oreogeton. Trichopeza is currently placed in the subfamily Trichopezinae and not in Oreogetoninae, though...
Paul

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Xespok
#5 Print Post
Posted on 08-10-2005 03:26
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Paul,

I forgot to mention that I have another image of this fly, which probably helps you out with the wing venation.

http://xespok.net...dae?page=3

Also, could this fly not belong to Xylophagidae? I have not considered that option yet.
 
Teglagyar u. 30.
Paul Beuk
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Posted on 10-10-2005 08:37
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Hmm, no Xylophagidae as far as I can tell, but I cannot really make a good empid of it either. I will get back to this one.
Paul

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Xespok
#7 Print Post
Posted on 01-01-2008 19:46
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I raise this very old thread, maybe some new eyes can tell us more.
Gabor Keresztes

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Teglagyar u. 30.
jorgemotalmeida
#8 Print Post
Posted on 01-01-2008 19:51
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it seems an empidoid..
 
http://www.flickr.com/photos/superegnum
John Carr
#9 Print Post
Posted on 10-01-2013 00:24
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I vote Blephariceridae. (Found this old thread searching on something unrelated.)
 
http://www.flickr.com/photos/31715949@N00
Xespok
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Posted on 10-01-2013 07:05
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Yes, Blephariceridae it will be, possibly Agathon sp. Thanks for solving this old mystery.
Gabor Keresztes

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Teglagyar u. 30.
jorgemotalmeida
#11 Print Post
Posted on 27-10-2013 15:56
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I agree. It is a Blephariceridae! Great find. And you can see the secondary veins. Wink
 
http://www.flickr.com/photos/superegnum
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