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Diptera.info :: Identification queries :: Diptera (adults)
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Steganinae from Canary Islands -> Cacoxenus subg Gitonides
Carnifex
#1 Print Post
Posted on 22-09-2023 22:20
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Location: Vienna, Austria
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Not my own photos, but I got permission by the observer to make the request here:

La Gomera, Sept 2023

inaturalist-open-data.s3.amazonaws.com/photos/321582690/large.jpeg
inaturalist-open-data.s3.amazonaws.com/photos/321611431/large.jpeg
inaturalist-open-data.s3.amazonaws.com/photos/321611403/large.jpeg
Edited by Carnifex on 24-09-2023 22:18
Cheers, Lorin

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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.
 
Andrzej
#2 Print Post
Posted on 23-09-2023 01:13
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Location: Poland
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It's a Drosophila species: repleta species-group
dr. A. J. Woznica, Institute of Environmental Biology, Wroclaw University of Environmental & Life Sciences
 
Carnifex
#3 Print Post
Posted on 23-09-2023 09:20
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I don't think so - the dark spots are too large, to manny bristles on the thorax and general shape says not a Drosophilid. Note also theremarkable eye stripe.
I was going into the direction of a Cacoxenus species
Cheers, Lorin

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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.
 
nielsyese
#4 Print Post
Posted on 23-09-2023 17:56
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The arista is not long haired, so Cacoxenus might come in to mind, but it is not a species I know. Maybe an introduced species?
Best wishes, Niels-Jan Dek
 
Carnifex
#5 Print Post
Posted on 23-09-2023 19:34
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Cacoxenus perspicax is described to have a horizontal bar in the eyes
Cheers, Lorin

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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.
 
Jan Maca
#6 Print Post
Posted on 23-09-2023 20:07
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That fly can be a Phortica (subg. Sinophthalmus) sp. It is not P. (S.) picta which I know. Except of P. (S.) picta there is one more described P. (S.) species, one described subspecies and a number of not yet studied taxa. Distribution from SW USA to S. America. Also I do not exclude Cacoxenus (subg. Gitonides). If the specimen is available, I would like to study it, also I can arrange its DNA sequencing (most of its body can stay preserved if needed so).
Edited by Jan Maca on 23-09-2023 20:13
 
Carnifex
#7 Print Post
Posted on 23-09-2023 21:28
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unfortunately the fly hasn't been caught.

I had excluded Phortica because the antennae do not seem to be plumose
Edited by Carnifex on 23-09-2023 22:38
Cheers, Lorin

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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.
 
Andrzej
#8 Print Post
Posted on 24-09-2023 11:33
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Really, the arista is rather bare or short pubescent... Maybe we should check the key to the Afrotropical genera?
dr. A. J. Woznica, Institute of Environmental Biology, Wroclaw University of Environmental & Life Sciences
 
Jan Maca
#9 Print Post
Posted on 24-09-2023 13:49
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Both P. (Sinophthalmus) and C. (Giitonides) have micropubescet arista. Still you are right with C. (Gitonides) - after consultation of literature I realized that some characters testify for its affiliation to C. (Gitonides) (lacking frontal keel, costa developed only up to r2+3). Maybe you are even right with C. (G.) perspicax, still unrecorded from Canary Islands, but note that there are more than ten species of C. (G.) in Africa - e. g. C.(G.) apidoxenus, described from Senegal...
Edited by Jan Maca on 24-09-2023 19:17
 
Carnifex
#10 Print Post
Posted on 24-09-2023 22:17
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Thanks for the detailed information!
Cheers, Lorin

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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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