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Diptera.info :: Identification queries :: Diptera (adults)
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Pherbellia ID Poland > Ph. silana
Maks Syratt
#1 Print Post
Posted on 29-10-2023 22:44
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Location: Poland
Posts: 12
Joined: 11.12.22

I would greatly appreciate some help with this sciomyzid found this April in S Poland. I have looked through the Sciomyzidae of Scandinavia, but I can't seem to find a perfect match.
Many thanks in advance.
Maks Syratt attached the following image:


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Edited by Maks Syratt on 04-11-2023 12:48
 
Maks Syratt
#2 Print Post
Posted on 29-10-2023 22:53
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Location: Poland
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Maks Syratt
#3 Print Post
Posted on 29-10-2023 22:54
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Location: Poland
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Maks Syratt
#4 Print Post
Posted on 29-10-2023 22:54
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Location: Poland
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Maks Syratt
#5 Print Post
Posted on 29-10-2023 22:54
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Location: Poland
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Edited by Maks Syratt on 29-10-2023 22:55
 
Maks Syratt
#6 Print Post
Posted on 29-10-2023 22:56
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Location: Poland
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Jan Maca
#7 Print Post
Posted on 31-10-2023 09:36
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It is Pherbellia silana. Determined by Jiří Preisler.,
 
Maks Syratt
#8 Print Post
Posted on 31-10-2023 17:05
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Location: Poland
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Thank you very much!
 
Nikita Vikhrev
#9 Print Post
Posted on 31-10-2023 20:27
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One more opinion.
1. I'm not at all convinced that Ph. silana exists.
2. Thus, why it is not old and good Fallen's Ph. ventralis ?
Nikita Vikhrev - Zool Museum of Moscow University
 
Jan Maca
#10 Print Post
Posted on 01-11-2023 08:42
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Jiri Preisler noted: At least according to this paper P. silqana is a good species:
Leo Rivosechi (1989)
Fragm. entomol., Roma 21 (2): 153-161
Note sugli Sciomyzidae IX. Due nuove specie del genere Pherbellia
provenienti dallˇItalia meridionale.
 
Nikita Vikhrev
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Posted on 01-11-2023 20:59
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Jan, I agree that according to Rivosechi Ph. silana is a good species.
But the shape of genitalia is strongly depended on the angle of view. Thus, it isn't easy to interpret genitalic difference.
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Nikita Vikhrev - Zool Museum of Moscow University
 
Maks Syratt
#12 Print Post
Posted on 02-11-2023 22:06
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Location: Poland
Posts: 12
Joined: 11.12.22

I have managed to find Rozkosny's key to the Pherbellia of the Palaearctic and looked at the terminalia at various angles under the microscope. I did not observe the posterior part of the gonostylus to be bifid, which according to the key should mean this is indeed Ph. silana
 
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