Thread subject: Diptera.info :: Chrysotoxum cautum (male)

Posted by Liliane D on 03-09-2020 13:02
#1
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
Edited by Liliane D on 15-09-2020 18:12

Posted by Liliane D on 03-09-2020 13:02
#2
An other view

Posted by Liliane D on 15-09-2020 14:21
#3
The length of the articles is difficult to evaluate but what does the shape of the last abdominal segment mean?

Posted by helge on 15-09-2020 17:58
#4
Hi Liliane!

C. cautum, male.

cheers, Helge

Posted by eklans on 15-09-2020 18:00
#5
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

Posted by Liliane D on 15-09-2020 18:15
#6
Thank you very much Helge and Eric,
I have completed the title and my personal registration with your indications