Thread subject: Diptera.info :: Which Chironomidae? => Culex pipiens/torrentium

Posted by Mtfyfe on 11-12-2017 18:24
#1

Found 31.10.17 in house , Buxtehude, Germany

Edited by Mtfyfe on 03-01-2018 22:07

Posted by Mtfyfe on 11-12-2017 18:29
#2

2.picture

Posted by Mtfyfe on 11-12-2017 18:30
#3

3rd. picture

Posted by Juergen Peters on 11-12-2017 22:18
#4

Hello,

a Culicidae male, maybe Culex.

Posted by Tony Irwin on 11-12-2017 23:01
#5

Yes, Culex male

Posted by Mtfyfe on 12-12-2017 08:37
#6

Thanks for the help.
So its most likely C. pipiens or could it either be C.modestus, C.torrentium, C.hortensis, C.martinii or C.territans?
Or is it not possible to say from a (or these) pictures?
Thanks, Lars

Posted by Tony Irwin on 12-12-2017 10:50
#7

It appears that the hind basitarsis is about the same length as the tibia. This excludes Cx. modestus in which the hind basitarsis is shorter. If the tergites are uniformly reddish-brown, with no trace of pale bands, then it might be Cx. martinii (or a very worn something else). If there are pale apical bands on the tergites, it may be Cx. territans or Cx. hortensis. If it has pale basal bands on the tergites, it's most likely Cx. pipiens or Cx. torrentium. But it's often difficult to tell from photos. Fresh specimens in good condition are usually required, though many males can be separated on genitalia characters.

Posted by Mtfyfe on 12-12-2017 17:14
#8

Thanks Tony,
this is very informative!
Lars

Posted by brundlefly on 14-12-2017 15:02
#9

In the first picture you can see light triangles in the basal part of the tergite. That usually suggest that there is a pale basal band, hence pipiens/torrentium would be my best guess for this one.