Thread subject: Diptera.info :: Chironomidae(?) from Brazil

Posted by Walther Ishikawa on 31-05-2018 01:13
#1
Are these tiny diptera Chironomidae?
They measure about 4 mm.
Sorry for the poor quality pictures.
Photographed close to a lake, in Vinhedo city, São Paulo state, Brazil.

Thank you very much!

www.planetainvertebrados.com.br/imagens_especies/textos/img_20180530_rogvohrymmd4.jpg
www.planetainvertebrados.com.br/imagens_especies/textos/img_20180530_mjbpjcmthh8z.jpg
www.planetainvertebrados.com.br/imagens_especies/textos/img_20180530_urjxqku1ppg6.jpg

Posted by John Carr on 31-05-2018 01:33
#2
I think subfamily Tanypodinae.

Posted by Walther Ishikawa on 01-06-2018 02:47
#3
Thank you very much, John!!

By the way, I was looking at your avatar picture... are these phoretic mites? It seems like one of my females is carrying a couple as well... attached in the same place! Is it just a coincidence, or are these places preferred by the mites?

Posted by John Carr on 01-06-2018 11:48
#4
Water mites (Hydrachnidae and related families) are common on Chironomidae. I don't know if their attachment points are random.

Also on my Chaoborus picture in the gallery: https://diptera.i...to_id=8740.