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Diptera.info :: Identification queries :: Diptera (adults)
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Pollenia ?
Gintautas Steiblys
#1 Print Post
Posted on 07-04-2018 10:10
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Location: Lithuania, Kaunas
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Hi,
I think this a fly is Pollenia... Maybe someone can identify up to a species?

Location: Lithuania 04.06
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Gintautas Steiblys
#2 Print Post
Posted on 07-04-2018 10:11
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Location: Lithuania, Kaunas
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*
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johnes81
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Posted on 08-04-2018 00:05
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yes it is a Pollenia species. seems to be in the rudis group. you should eliminate pediculata by looking at the underside of the wing. you will see a group of pale hairs on the node at the humeral crosvein and vein Sc. After eliminating pediculata, you will need to view the cerci surstyli in perfect dorsal and lateral views. The aedeagus is also necessary in perfect dorsal and lateral views. The reason for this is because the genitalia look very similar for many species in the rudis group. hungarica is a possibility here but we need to make certain that it is of the rudis group. it will be much easier to look at the genitalia.
https://diptera.info/photogallery.php?photo_id=10761

since you have a pinned specimen, do you mind revealing the genitalia? i just use a pin and pry it out but this is not good if the specimen is dry.
John and Nini. Naturalists not experts.
 
Gintautas Steiblys
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Posted on 15-04-2018 11:38
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I corrected the fly wings
Gintautas Steiblys attached the following image:


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johnes81
#5 Print Post
Posted on 16-04-2018 20:43
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no visible hairs eliminates pediculata. anyway because the gena doesn't match.
i think that this is either Pollenia angustigena or Pollenia hungarica. I see yellow pv on femur 3. Accroding to Dr. Rognes, the ventral side of tergite 3 will have mostly black hairs on Pollenia angustigena. If you see mostly yellow/golden hairs, then it will be Pollenia hungarica. Genitalia is best for Pollenia of the rudis group.
John and Nini. Naturalists not experts.
 
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