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View Thread :: Identification queries :: Diptera (adults)
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Odinia boletina <- flies with strong legs on Polypore
#1 Print Post
Posted on 02-07-2018 18:10

Location: Vienna, Austria
Posts: 320
Joined: 23.06.15


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.

Edited by Carnifex on 13-07-2018 16:30
Jan Maca
#2 Print Post
Posted on 02-07-2018 19:53

Posts: 82
Joined: 25.03.10

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

Location: Vienna, Austria
Posts: 320
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

Location: Umeå, Sweden
Posts: 26
Joined: 02.05.11

Yes, Odinia is a mess but nevertheless I think your specimens are O. boletina.
#5 Print Post
Posted on 05-07-2018 09:32

Location: Vienna, Austria
Posts: 320
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?
#6 Print Post
Posted on 11-07-2018 10:37

Location: The Netherlands
Posts: 574
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,

#7 Print Post
Posted on 12-07-2018 13:15

Location: Vienna, Austria
Posts: 320
Joined: 23.06.15

is this helpful?

Same specimens, first male, second female:
#8 Print Post
Posted on 13-07-2018 16:27

Location: The Netherlands
Posts: 574
Joined: 22.11.11

Hi Carnifex,

Yes, one eye fascia -> Odinia boletina!

Kind regards,

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

Location: Vienna, Austria
Posts: 320
Joined: 23.06.15

Thank you very much! :-)
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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Date and time
20 September 2018 16:55


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