Thread subject: Diptera.info :: Chironomidae Tanypodinae?

Posted by Elena Regina on 07-08-2018 20:47
#1
Roma, VI-2018, WS 2 mm

i.imgur.com/x0ANKkk.jpg

Posted by John Carr on 08-08-2018 14:01
#2
Orthocladiinae

Posted by John Carr on 20-08-2018 13:35
#3
More likely Cricotopus, but it might be neither genus. Keys to Orthocladiinae are written for slide-mounted males.

Posted by Elena Regina on 21-02-2021 19:22
#4
Conspecific♂, WS 2.7mm, dorsal & ventral view.

Any hint?Smile

web.archive.org/web/20210221180342if_/https://i.ibb.co/wNtsYhg/P9134770.jpg

web.archive.org/web/20210221180941if_/https://i.ibb.co/hR8Ljpn/P91347640.jpg

Posted by John Carr on 22-02-2021 18:30
#5
If you have access to Hirvenoja's revision of the Cricotopus group you could browse drawings of color patterns. The key characters are rarely visible in photographs.

Hirvenoja, Mauri. 1973. Revision der Gattung Cricotopus van der Wulp und ihrer Verwandten (Diptera, Chironomidae). Annales Zoologici Fennici 10(1) 1-363.
Edited by John Carr on 22-02-2021 18:31

Posted by Elena Regina on 27-02-2021 16:19
#6
Thank you, John. Hirvenoja'revision is absolutely stunning!

You were right, the key characters are rarely visible in photographs. Also, most species described therein appear to be normally larger than these specimens. Plausibly Cricotopus annulatus, but not 100% sure...

Help! Shock

i.ibb.co/R2S5sQJ/Cricotopus-annulator.png