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Diptera.info :: Identification queries :: Diptera (adults)
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Muscidae - Polietes ?
maxi6215
#1 Print Post
Posted on 29-08-2018 11:51
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 Hello,

I observed this Diptera the 20th of August in Calais in the North of France. I think of a Muscidae, maybe a Polietes ? What do you think ?

Cordially maxime

nordpasdecalais.observation.org/fotonew/6/18296156.jpg
 
maxi6215
#2 Print Post
Posted on 05-09-2018 20:27
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 Any idea ?
 
Nikita Vikhrev
#3 Print Post
Posted on 06-09-2018 16:56
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 It is not Polietes. Most probably Helina
Nikita Vikhrev - Zool Museum of Moscow University
 
maxi6215
#4 Print Post
Posted on 07-09-2018 08:38
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 Thanks, now I think of a Helina evecta, what do you think ?
 
Nikita Vikhrev
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Posted on 07-09-2018 15:34
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 I can not understand are eyes hairy or not. Any other image?
Nikita Vikhrev - Zool Museum of Moscow University
 
maxi6215
#6 Print Post
Posted on 08-09-2018 20:16
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 Unfortunately, I don't have better pictures but the eyes don't seems hairy ?
 
maxi6215
#7 Print Post
Posted on 14-09-2018 17:29
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 ???
 
johnes81
#8 Print Post
Posted on 15-09-2018 13:09
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 Helina sp because necessary features are not discernible with this photo, such as, length of prealar versus second notopleural or length of aristal hairs. For the record, H. evecta is generally more stout than the fly in this photo.
John and Nini. Naturalists not experts.
 
maxi6215
#9 Print Post
Posted on 15-09-2018 13:54
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 Ok, thank you very much !
 
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Some flies preserved in ethanol and then pinned often get the eyes sunken, how can this be avoided? Best answer: I usually keep alcohol-collected material in alcohol

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