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Diptera.info :: Family forums :: Syrphidae
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Brachypalpoides lentus or Chalcosyrphus piger? --> male Chalcosyrphus piger
Reimund Ley
#1 Print Post
Posted on 16-08-2018 15:07
Member

Location: Deutschland, Recklinghausen
Posts: 892
Joined: 25.04.14

 please help to distinguish between
Brachypalpoides lentus and Chalcosyrphus piger.

the fly was about 8-10mm,
it was found in Germany, Bavaria, Nesselwang, near to border of Austria, altitude 1550m, 15. 6. 2018


greetings

Angelika/Reimund
Reimund Ley attached the following image:


[142.09Kb]
Edited by Reimund Ley on 17-08-2018 15:19
 
http://angelikaley-fotografie.de
Reimund Ley
#2 Print Post
Posted on 16-08-2018 15:07
Member

Location: Deutschland, Recklinghausen
Posts: 892
Joined: 25.04.14

 .
Reimund Ley attached the following image:


[83.99Kb]
 
http://angelikaley-fotografie.de
treebeard
#3 Print Post
Posted on 16-08-2018 17:00
Member

Location: Slovakia
Posts: 614
Joined: 13.08.13

 Brachypalpoides lentus has the black tip of the abdomen, while the abdomen of Chalcosyrohus piger is enitrely red. Unfortunately, it is not clearly visible from your picture.
 
Reimund Ley
#4 Print Post
Posted on 16-08-2018 18:46
Member

Location: Deutschland, Recklinghausen
Posts: 892
Joined: 25.04.14

 we have a look in the Syrphidae-Gallerie and mean to see
that our fly has a shadow of black tip of the abdomen,
but as you say it is not very clearly.

Here are two fotos from gallerie:

https://diptera.info/photogallery.php?photo_id=1888
https://diptera.info/photogallery.php?photo_id=2871

comments are welcome!!


best wishes


Angelika/Reimund
 
http://angelikaley-fotografie.de
Gerard Pennards
#5 Print Post
Posted on 17-08-2018 12:01
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Member

Location: Amersfoort
Posts: 1914
Joined: 07.06.04

 It's a male Chalcosyrphus piger. The most striking difference with Brachypalpoides in pictures like this is the thickness of the hind femur. In brachypalpoides the hind femur is much more slender as it is in piger. Find brachypalpoides pictures and compare and you'll see what I mean.
Greetings,
Gerard Pennards
 
Reimund Ley
#6 Print Post
Posted on 17-08-2018 15:18
Member

Location: Deutschland, Recklinghausen
Posts: 892
Joined: 25.04.14

 hello Gerard,



thanks to you for your help, your time and indentifikation of this fly.
Also thanks for more information to distinguish these flys.


best wishes


Angelika/Reimund
 
http://angelikaley-fotografie.de
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