Hook: Size 12-14 dry-fly
Thread: Tan Sheer 14/0
Tail: Brown microfibbets or brown cock hackle fibres
Body: 1:2 mix of March brown and sulphur orange Superfine dubbing
Rib: 2.5lb brown monofilament
Wing: Four/five CDC plumes
Hackle: Short dun/brown or red game cock hackle, trimmed underneath
A March Brown pattern which really can be relied upon. It is versatile enough to also cover hatches of both large dark olive and olive upright.
Try this low-riding Mayfly Dun for fussy trout that refuse a high-riding dry-fly.