Thread subject: Diptera.info :: Tanypodinae? > no, Tanytarsini
Posted by Lennart Bendixen on 20-02-2017 21:52
#1
Another one, and it looks like something related to the previous one.
Is there a key to subfamilies online? Or some other aids?
I don't want to be guessing every time I find a specimen looking rather unfamiliar to me.
2016-04-02, northern Germany, house wall
Edited by Lennart Bendixen on 21-02-2017 08:47
Posted by Tony Irwin on 21-02-2017 00:00
#2
I'd say Tanytarsini. You could try the
Nearctic Manual for generic identifications -
http://esc-sec.ca..._vol_1.pdf
I think most of the chironomid genera are Holarctic.
Posted by John Carr on 21-02-2017 00:24
#3
Tanytarsini are tough. At least, I haven't figured out how the genera differ in superficial appearance.
Posted by Lennart Bendixen on 21-02-2017 08:47
#4
Great manual, many thanks. I'm happy when I'm able to separate the subfamilies properly... ;)
Posted by John Carr on 21-02-2017 15:11
#5
Most Chironominae can be distinguished from most members of other subfamilies by the long front legs with fore basitarsus longer than fore tibia. There is some overlap with the more primitive Orthocladiinae (
Brillia group). If the fore basitarsus is 20% longer than the fore tibia, it is Chironominae. If the fore basitarsus is less than 90% as long, it is not.
Edited by John Carr on 21-02-2017 15:11
Posted by Lennart Bendixen on 21-02-2017 23:49
#6
ok! Many thanks (!) for that clue, I'll try it tomorrow.