Last week it was worth waiting for the evening hatch of Sedge on the Avon after a very hot sunny day, even though the fish did not seem to be at all interested - so no evening rise. The hatch was concentrated beside overhanging trees such as this willow, which I included in the shot to give context and scale. Tricky subjects to photograph. I ended up using a very long lens to get the desired photograph. This image is a substantial crop and required a very fast shutter speed of 1/1600 sec to partly freeze the movement of the flies. It was then possible to identify the characteristic long antennae of the Sedge which were near impossible to see with the naked eye.