The stonefly hatch is in full swing on area rivers and streams. Fish on the Stillwater are keying on the big dry fly. Dry fly action has been steadily increasing for the last week or so. The yellow Stimulator got torn up on Friday from morning till afternoon. With the advent of cooler temps, stonefly activity will slow down some, but mayflies might fill the gap until the sun shines again. There are several kinds of mayfly around this time of year, but Pale Morning Duns are usually the most prevalent. A yellow Humpy or yellow parachute pattern will get the job done if you see fish rising.
Key patterns to have for streams: Yellow Stimulator, Yellow Humpy, Hare’s Ear, Pheasant Tail, Chubby Chernobyl
Lakes: Ants, beetles, Adams, Olive Bugger