First cousin to the Old Blue Dun, the Blue Dun Hackle trades buttonhole twist for gold tinsel and muskrat for mole fur. While the North Country spider influence is readily visible, you can see how Leisenring is taking these flies firmly into wingless wet territory with the spikey body and prominent ribbing. Imitator or attractor…or both? You decide, and let the trout kibbitz.
Blue Dun Hackle
Hook: Dry or wet fly, 12-14
Silk: Primrose yellow
Hackle: Light blue dun hen
Tail: 2-3 blue dun fibers optional
Rib: Very narrow flat gold tinsel
Body: Mole fur spun on primrose yellow silk, a little of the silk exposed at the tail
Tying Notes: A mole skin is pretty cheap and will keep you in wet flies and nymphs for years. You want a natural colored fur (kind of a dark blue-grey dun), not a dyed skin. XS tinsel works. I did a better job on this fly of letting the yellow silk show through at the tail.