Thread subject: Diptera.info :: Chironomidae swarming on water surface

Posted by John Carr on 20-04-2018 01:54
#5

There are a few Orthocladiinae adapted to ground (or water surface) mating. These show the typical non-swarming adaptations, with reduced antennae, short legs, and enlarged hypopygium (see shadow at left of first photo).

The low front leg ratio rules out Tanytarsini and the wings are consistent with Orthocladiinae.