Klamath River Salmonfly Hatch
John Higley describes the munch-fest that occurs on California’s famous steelhead river every late May or early June. “That’s when the upper Klamath comes alive with the annual hatch of salmonflies (Pteronarcys californica), giant members of the stonefly family. Stoneflies make up nearly 400 species spread throughout North America. Wherever they are found, stoneflies become food for trout.” In California Game & Fish Magazine.