The adults are flat and long with great wings that when not in use, lay down on their body. You may hear these called salmon flies but those are particular species of the order. The adults can range in color from brown to black to golden to orange. The life cycle of the stonefly is mostly on land - egg, nymph and adult. Keep your eyes open and you can see the nymphal shucks on tree limbs, rocks and logs where the adults have crawled out onto the shore.
Stoneflies tend to like faster water, rocks, boulders and overhanging trees.
You will see the stonefly's peculiar flying pattern if you see an insect as big as a small bird dipping and diving, sputtering and coughing and buzzing then splatting on the water. That's a stonefly. Other trout, Midges, Tricos, crustaceans such as snails, mysis shrimp and freshwater shrimp, dobsonflies, craneflies, caterpillars, leeches, dragonfly, worms, annelids, damselfly, terrestrials like grasshoppers, beetles, ants, crickets and baitfish.