Winter stoneflies can fly. Every so often, the stoneflies can be seen flying around rather clumsily... even flying around the lights in the house. Mostly though, it seems the stoneflies use their wings to fan themselves across the water.
We appreciate the sight of the winter stoneflies surface-skimming on the river. The stoneflies flutter their wings and "ski" across the water's surface as if they were fan-boats or taxiing float-planes.
Next we will look at the "stoneflies hatching".