The Adams pattern is perhaps the dean of all mayfly patterns. This fly has evolved into variations and used on most rivers throughout the country. It is a staple.
Recipe:
Hook: Mustad 94840 or equivalent
Size: 10 – 20
Thread: Gray
Wings: Grizzly Hackle Tips – Upright and Divided
Tail: Brown and Grizzly Hackle Fibers Mixed
Body: Muskrat or Medium Gray Poly
Hackle: Brown and Grizzly Mixed
Directions: Select two grizzly hackle tips and tie them in upright and divided. Wrap the thread back to the bend and tie in the tail. Prepare the dubbing and wrap it sparsely to the wing. Tie in the hackle and wrap behind and ahead of the wing, mixing the brown and grizzly hackle. Tie off with a head.
This fly is a common imitation of a mayfly and is used throughout the season. It is a Michigan fly that is fished all over.