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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
Member

Location: Vienna, Austria
Posts: 404
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

static.inaturalist.org/photos/20675724/original.jpeg
static.inaturalist.org/photos/20675732/original.jpeg
static.inaturalist.org/photos/20675740/original.jpeg
static.inaturalist.org/photos/20676140/original.jpeg
Edited by Carnifex on 13-07-2018 16:30
 
Jan Maca
#2 Print Post
Posted on 02-07-2018 19:53
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Location:
Posts: 124
Joined: 25.03.10

Odinia sp.; difficult to go farther.
 
Carnifex
#3 Print Post
Posted on 04-07-2018 09:22
Member

Location: Vienna, Austria
Posts: 404
Joined: 23.06.15

Thanks Jan, apparently Odinia genus is a mess Smile
 
Sven Hellqvist
#4 Print Post
Posted on 04-07-2018 18:22
Member

Location: Umeå, Sweden
Posts: 27
Joined: 02.05.11

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
Member

Location: Vienna, Austria
Posts: 404
Joined: 23.06.15

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
Member

Location: The Netherlands
Posts: 634
Joined: 22.11.11

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
Member

Location: Vienna, Austria
Posts: 404
Joined: 23.06.15

is this helpful?

Same specimens, first male, second female:

static.inaturalist.org/photos/21209815/large.jpeg

static.inaturalist.org/photos/21209807/large.jpg
 
Ectemnius
#8 Print Post
Posted on 13-07-2018 16:27
Member

Location: The Netherlands
Posts: 634
Joined: 22.11.11

Hi Carnifex,

Yes, one eye fascia -> Odinia boletina!

Kind regards,

Ectemnius
 
Carnifex
#9 Print Post
Posted on 13-07-2018 16:30
Member

Location: Vienna, Austria
Posts: 404
Joined: 23.06.15

Thank you very much! :-)
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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hello everyone, I come back. Snowy today in Inner Mongolia, China

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I looooove the fly in the beer irish joke in the random quotes Grin

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I´d like to communicate with Jan Maca, who is a member here, but I can´t find any e-mail address. Could anyone help?

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Thank you. Yes - I've done it now. The file was too large.

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no blanks in filename, file size reduced (below 300 k or so).Did you fulfill these criteria ?

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Thanks for the explanation Paul. It definitely stopped me from flooding the forum with my threads Wink

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