Ryan Brennecke / The BulletinTerry’s Terror, tied by Pete Ouelette.

This dry fly was dreamed up by a couple of Englishmen — Terry and Lock — who used it when olive mayflies were on the water. Although it doesn’t look like any particular trout food, it definitely has some natural fishiness thanks to its buggy profile and contrast.

Fish Terry’s Terror with a floating line on a dead drift. If the fly sinks, let it work. Trout will take this one for a snail or just because it looks like it should be good to eat.

Tie Terry’s Terror on a No. 10-16 dry-fly hook. For the tail, use equal parts yellow and orange goat hair, clipped short. Build the body with peacock herl and a fine copper tinsel rib. Finish with a natural red hackle.

— Gary Lewis, For The Bulletin