Thread subject: Diptera.info :: Chaoborus requires genital dissection?

Posted by smol on 25-10-2023 21:04
#1

Netherlands, 2023-10-18, near lake

Am I correct to say that Chaoborus of the flavicans-complex, or now called subgenus Chaoborus, require genital dissection to properly ID?
This would be Chaoborus crystallinus/flavicans for NL I believe.

waarneming.nl/media/photo/79418877.jpg
waarneming.nl/media/photo/79418878.jpg

Posted by Tony Irwin on 26-10-2023 09:36
#2

There are some non-genital differences between the species, but the characters are variable and difficult to see in photos. I would always recommend dissection to be certain.

Posted by smol on 26-10-2023 16:09
#3

Tony Irwin wrote:
There are some non-genital differences between the species, but the characters are variable and difficult to see in photos. I would always recommend dissection to be certain.


Ah, thank you very much Tony Irwin! I did read something about differences in the tergal bands, but nothing conclusive. Then I will skip these species for now until I will catch them Smile