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Diptera.info :: Identification queries :: Diptera (adults)
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Drosophilinae
jokari
#1 Print Post
Posted on 14-11-2021 21:23
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Thanks to those who can help me to name this Drosophila, which could be a Hirtodrosophila.
Found on compost, South East of France
jokari attached the following image:


[291.79Kb]
Edited by jokari on 15-11-2021 12:00
 
Jan Maca
#2 Print Post
Posted on 17-11-2021 15:46
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Difficult to tell. If you have the specimen, try to check if there is a row of spinules on the inner side of fore femora (characteristic for immigrans group).
 
jokari
#3 Print Post
Posted on 18-11-2021 00:17
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One photo added of the fore femora. Can we see the spinule?
jokari attached the following image:


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Edited by jokari on 18-11-2021 00:19
 
Jan Maca
#4 Print Post
Posted on 18-11-2021 07:11
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Sorry, still not clear - the important part of fore femur is covered by the eye. I understand that it is difficult to photograph this character on a living fly.
 
jokari
#5 Print Post
Posted on 18-11-2021 12:40
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is there no other element of identification? To the habitus, no other possible proposal?
 
Jan Maca
#6 Print Post
Posted on 19-11-2021 19:16
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I admit it could be D. immigrans, although the pattern of mesonotum is unusual. Slightly darkened tips of wing veins seem to suggest this determination. To support it more, we should see the spinules on fore femora (D. immigrans is the only European species with these structures). However, a possibility that it is an alien species (perhaps one of many alien spp. of immigrans group) is not excluded...
 
jokari
#7 Print Post
Posted on 21-11-2021 00:04
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Thanks for your explanations.
 
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