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Diptera.info :: Identification queries :: Diptera (adults)
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Phortica cf variegata, Drosophilidae, Hungary
Xespok
#1 Print Post
Posted on 06-10-2006 22:37
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Location: Debrecen, Hungary
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I have no idea for this, and I hope this fly turns out to represent a new family for me.
Xespok attached the following image:


[82.42Kb]
Edited by Xespok on 20-08-2007 19:38
 
Teglagyar u. 30.
Tony Irwin
#2 Print Post
Posted on 07-10-2006 00:33
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Periscelidae jumped into my mind whenI first saw this. If not that, then perhaps Phortica (Drosophilidae)? (But now I'm struggling! Wink)
Tony
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Paul Beuk
#3 Print Post
Posted on 08-10-2006 09:04
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It would help to have the size. Roughly: < 3 mm: Periscelididae; > 3 mm: Phortica would be an option. Based on the legs I would rather discount Periscelididae.
Paul

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Xespok
#4 Print Post
Posted on 09-10-2006 17:01
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Guess what, around 3 mm. It was a small fly. Too small compared to the Phortica sp photographed by me in Japan last year, which was a large Drosophilid. Also this fly did not try to land in my eyes and ears like the Japanese species, which was kind of superannoying. But the Phortica image from Japan indeed looks quite similar to the one in this thread, note the pale ring around the eye and the pale spots on the side of the thorax.

What would be the major difference between the two families?

 
Teglagyar u. 30.
Tony Irwin
#5 Print Post
Posted on 09-10-2006 20:26
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The difference is primarily on wing venation and head bristles. Drosophilids have the costa broken twice, while periscelids have an unbroken costa. Drosophilids have convergent postverticals, while periscelids have divergent postverticals.
Although it's not entirely clear, it looks like your fly has a twice-broken costa, so I withdraw the periscellid suggestion and will back Phortica. The two Hungarian species are very similar - I wouldn't like to call between them on the basis of this shot... Well, variegata if I had to choose one!
Tony
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Jan Willem
#6 Print Post
Posted on 17-08-2007 18:42
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Since I was searching for more information on the genus Phortica I contacted Dr. Jan Maca and also asked him to look at the pictures of the Phortica specimens on www.diptera.info. His comment on this specimen was:

Dr. Jan Maca wrote:
Probably P. variegata but difficult to see in this picture.


Jan Willem
 
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