Pending ID – Chironominae
Mid July 2009
The first picture is a pupa moments before adult emergence. The bulge that’s broken the water surface is where the midge pops up and through to begin adult life. The pupa’s plumose thoracic horns surround it – these essentially function as it’s gills during it’s development at the bottom of the pool of water. The second picture is that of the newly emerged female adult.