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