Thread subject: Diptera.info :: Chironomid? (2_1_b)
Posted by gdoer on 25-10-2019 21:43
#1
I am hesitant to call these chironomid because their wings lack any crossveins. Is this a valid concern, or do not all chironomid adults have crossveins?
size: around 2mm
location: Sierra Nevada stream
id #: 2_1_b
Edited by gdoer on 25-10-2019 21:43
Posted by John Carr on 25-10-2019 23:35
#2
Chironomidae, likely tribe Tanytarsini. The crossveins will be there if you look closely enough, but unpigmented.
Posted by gdoer on 25-10-2019 23:41
#3
Makes sense. Tibia is longer than 1st tarsomer and squama is without hairs. Thanks!
Posted by Tony Irwin on 26-10-2019 09:43
#4
Note that in Tanytarsini, the front tibia should be
shorter than the first tarsomere. Most of these individuals seem to be missing the front tarsi
Posted by John Carr on 26-10-2019 12:05
#5
The front tarsi tend to break off in Chironominae much more than in other subfamilies.
Edited by John Carr on 26-10-2019 12:05
Posted by gdoer on 27-10-2019 20:49
#6
Ah yes. Sorry, that is what I meant! Thank you :)