Caddisfly larvae

Caddisfly larvae

Observation - Caddisfly larvae. Description: Several larvae at the surface of the water, not clear what they were doing. I went back today, and there was only one visible, on the river bed. Yesterday was warmer than today, with sunshine. Might have something to do with it...

Several larvae at the surface of the water, not clear what they were doing. I went back today, and there was only one visible, on the river bed. Yesterday was warmer than today, with sunshine. Might have something to do with it...