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Diptera.info :: Identification queries :: Diptera (adults)
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Odinia boletina <- flies with strong legs on Polypore
Carnifex
#1 Print Post
Posted on 02-07-2018 18:10
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Location: Vienna, Austria
Posts: 1881
Joined: 23.06.15

Hi,

these two flies I found on a polypore mushroom in the Botanical Garden of Vienna.
Very conspicuous was the reflecting white face in the area of the mouthparts and their stuttering walking behavior. Reminded me of a scuttle fly, in fast forward.

Cheers!
Lorin

inaturalist-open-data.s3.amazonaws.com/photos/20675724/original.jpeg
inaturalist-open-data.s3.amazonaws.com/photos/20675732/original.jpeg
inaturalist-open-data.s3.amazonaws.com/photos/20675740/original.jpeg
inaturalist-open-data.s3.amazonaws.com/photos/20676140/original.jpeg
Edited by Carnifex on 01-12-2021 10:25
 
Jan Maca
#2 Print Post
Posted on 02-07-2018 19:53
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Odinia sp.; difficult to go farther.
 
Carnifex
#3 Print Post
Posted on 04-07-2018 09:22
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Location: Vienna, Austria
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Thanks Jan, apparently Odinia genus is a mess Smile
 
Sven Hellqvist
#4 Print Post
Posted on 04-07-2018 18:22
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Location: UmeƄ, Sweden
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Yes, Odinia is a mess but nevertheless I think your specimens are O. boletina.
/Sven
 
Carnifex
#5 Print Post
Posted on 05-07-2018 09:32
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Location: Vienna, Austria
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There was a discussion in this forum some years ago where, according to a translation of the original description, the transverse nerves in O. boletina are not infuscated, in contrast to O. ornata. Is this still valid or obsolete?
 
Ectemnius
#6 Print Post
Posted on 11-07-2018 10:37
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Location: The Netherlands
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Hi Carnifex,

The weak spots on the crossveins and the habit of sitting on the underside of a polypore funghi (probably Fomes fomentarius) all indicate O. boletina.
If you want to be sure then you have to macerate the specimens. Then the markings on the eyes will become visible. The number of eye fascia are indicative of species.

Kind regards,

Ectemnius
 
Carnifex
#7 Print Post
Posted on 12-07-2018 13:15
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Location: Vienna, Austria
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is this helpful?

Same specimens, first male, second female:

inaturalist-open-data.s3.amazonaws.com/photos/21209815/large.jpeg

inaturalist-open-data.s3.amazonaws.com/photos/21209807/large.jpg
Edited by Carnifex on 01-12-2021 10:25
 
Ectemnius
#8 Print Post
Posted on 13-07-2018 16:27
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Location: The Netherlands
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Hi Carnifex,

Yes, one eye fascia -> Odinia boletina!

Kind regards,

Ectemnius
 
Carnifex
#9 Print Post
Posted on 13-07-2018 16:30
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Location: Vienna, Austria
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Thank you very much! :-)
Cheers, Lorin

Font Color
All requests are from the urban area of Vienna, if not otherwise stated.

My Diptera observations (and other living forms) can be found here, and corrections or comments over there would also be appreciated.
 
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