Thread subject: Diptera.info :: Chironmidae larvae - genus?

Posted by Megalopteran on 08-06-2017 16:42
#1

Any info would be appreciated.

Collected in East Texas

Edited by Megalopteran on 08-06-2017 16:43

Posted by atylotus on 08-06-2017 19:35
#2

Hello megalopteran, welcome to the forum.
It is most likely genus Chironomus but for that you need to check if the penultimate segment has ventral tubules. Or add a photo of the end of the larva. If it doesn't have tubules you have to add a detailed photo of the ventral side of the headcapsule.

Posted by Megalopteran on 08-06-2017 22:27
#3

Another photo. Looks to be 4

Edited by Megalopteran on 08-06-2017 22:28

Posted by atylotus on 09-06-2017 07:08
#4

2 pairs are even unique for Chironomus spec. There are some species with a reduced pair or even 1 pair. Some other genera can have 1 pair too and consequently resemble Chironomus. But this is Chironomus and almost impossible to identify to specieslevel. I know some European keys and the one by Epler from NA.

Posted by atylotus on 09-06-2017 10:19
#5

North and South Carolina: http://www.sjrwmd...1-SP13.pdf
Canada: http://esc-sec.ca...art_11.pdf
Florida: https://pubs.usgs...lowrez.pdf; http://johnepler....202014.pdf; http://johnepler....midges.pdf
Ohio: http://www.epa.st...ne2007.pdf

And some others can be found on John Eplers' page:http://johnepler....
but I think there are many more, but as I'm European I'm not familiar with literature and species from the Nearctics

Posted by John Carr on 09-06-2017 10:31
#6

In America we also have Goeldichironomus which is related to Chironomus. According to Epler's paper, it can have 2 pairs of ventral tubules.

Posted by Megalopteran on 09-06-2017 15:59
#7

Thanks for the info, I've never delved into Diptera as I see colleagues going crazy identifying them lol. Thanks. I'll take the info and keep digging.