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Diptera.info :: Family forums :: Syrphidae
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Chrysotoxum cautum (male)
Liliane D
#1 Print Post
Posted on 03-09-2020 13:02
Member

Location: France
Posts: 738
Joined: 16.08.17

Hello,
In the South of France, April 21, 2015
A Chrysotoxum but I can't quite evaluate the length of the articles 3 and 1-2 of the antennas.
I also wonder about the last abdominal segment!
Thank you for your help
Liliane D attached the following image:


[185.32Kb]
Edited by Liliane D on 15-09-2020 18:12
 
Liliane D
#2 Print Post
Posted on 03-09-2020 13:02
Member

Location: France
Posts: 738
Joined: 16.08.17

An other view
Liliane D attached the following image:


[203.74Kb]
 
Liliane D
#3 Print Post
Posted on 15-09-2020 14:21
Member

Location: France
Posts: 738
Joined: 16.08.17

The length of the articles is difficult to evaluate but what does the shape of the last abdominal segment mean?
 
helge
#4 Print Post
Posted on 15-09-2020 17:58
Member

Location: Austria
Posts: 1322
Joined: 10.02.16

Hi Liliane!

C. cautum, male.

cheers, Helge
 
eklans
#5 Print Post
Posted on 15-09-2020 18:00
Member

Location: Franconia, Germany
Posts: 3995
Joined: 11.11.18

Well, it's really hard to evaluate, but the hind margins of tergite 4, 5 are yellow, the hairs on the sides of tergite 2 could be white? And if length article 3 = 1 + 2 it's C. cautum which can be seen in April.

Greetings, Eric
 
Liliane D
#6 Print Post
Posted on 15-09-2020 18:15
Member

Location: France
Posts: 738
Joined: 16.08.17

Thank you very much Helge and Eric,
I have completed the title and my personal registration with your indications
 
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