Thread subject: Diptera.info :: Athericidae (or Rhagionidae?) - two in one

Posted by jorgemotalmeida on 04-07-2011 18:39
#4
The two last are Ibisia marginata (photos are rather dark).

I'm pretty sure your photo img713.imageshack.us/img713/727/imgp1705g.jpg - shows a female of Atrichops crassipes. R4 is gradually arched, so never could be neither Atherix or Ibisia. See the other reasons forementioned for this ID. Yours is a female, and the Andrade's Atrichops is a male.
Larvae of this species are quite sensitive to water pollution. They need very well oxygenated and crystalline waters.
Edited by jorgemotalmeida on 04-07-2011 18:46