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Diptera.info :: Family forums :: Syrphidae
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Chrysotoxum festivum
usiaz
#1 Print Post
Posted on 17-05-2018 18:32
Member

Location: Middle Ural
Posts: 242
Joined: 04.05.18

Hello! Is it possible to identify species?
Time and place: 2016-06-18 20:57:00. In the garden. Midlle Ural.
L = 8-9 cm.
Latitude: North. 56°46'
Longitude: East. 55°45'
usiaz attached the following image:


[137.61Kb]
Edited by usiaz on 09-08-2018 05:05
 
usiaz
#2 Print Post
Posted on 17-05-2018 18:33
Member

Location: Middle Ural
Posts: 242
Joined: 04.05.18

View 2.
usiaz attached the following image:


[108.15Kb]
Edited by usiaz on 17-05-2018 18:35
 
usiaz
#3 Print Post
Posted on 17-05-2018 18:40
Member

Location: Middle Ural
Posts: 242
Joined: 04.05.18

This is another insect.
usiaz attached the following image:


[89.16Kb]
Edited by usiaz on 17-05-2018 18:42
 
treebeard
#4 Print Post
Posted on 17-05-2018 19:33
Member

Location: Slovakia
Posts: 359
Joined: 13.08.13

Chrysotoxum festivum, at least if it was in the Central Europe
Edited by treebeard on 17-05-2018 19:34
 
usiaz
#5 Print Post
Posted on 17-05-2018 20:34
Member

Location: Middle Ural
Posts: 242
Joined: 04.05.18

The Middle Urals is not very close to Central Europe.Smile
 
treebeard
#6 Print Post
Posted on 17-05-2018 21:04
Member

Location: Slovakia
Posts: 359
Joined: 13.08.13

Indeed Wink

I have no idea whether there are more species with a black abdomen margin in Russia than in the Central and Northern Europe. Maybe not. I use Russian keys for some insects and I was surprised that it works.
Edited by treebeard on 17-05-2018 21:05
 
usiaz
#7 Print Post
Posted on 18-05-2018 09:19
Member

Location: Middle Ural
Posts: 242
Joined: 04.05.18

Hello!
Thank you very much for your response to my request.
I read some Russian-language scientific publications on entomology. Chrysotoxum festivum has a body length of 12-15 mm, and the length of our insects is 8-9 mm. This is probably a polymorphism. Is the body length of the insect a key feature for identifying the species Chrysotoxum festivum?
Chrysotoxum festivum is an insect with a multiregional polyzonal habitat. If the European entomologists use other terms, then I ask you to excuse me. Smile Chrysotoxum festivum in the group of insect species with a widespread area in Europe. In Siberia, the range gradually narrows and ends in the Baikal region. At present I have not found exact information about the occurrence of Chrysotoxum festivum in the geographic region (southern part of the Perm Region) in which these insects are photographed. But it is found in the Vologda region. Therefore, there is a high probability that the southern part of the Perm Region is the area of ​​its habitat. In fact, such a method of identification of a biological species is incorrect, since this is a rough interpolation. But, unfortunately, I do not collect insects and do not have the opportunity to provide additional signs for species identification.
With best wishes, Irek!
Edited by usiaz on 18-05-2018 09:28
 
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19.12.18 13:10
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