Stoneflies are among that curious collection of creatures that can't seem to pick a medium and stick with it. Like other members of the so-called aquatic insects, they spend their youth in water. Then they emerge, shed their exoskeletons and underwater breathing gear, and take on new lives as air-breathing adults. This Skwala stonefly had done just that, sometime shortly before I encountered it along the shore of the McKenzie River earlier this week.
