I started tying this pattern a couple years ago for fishing the Gallatin River over the winter. When a nymph needs to grow it has to shed its exoskeleton. When this happens the nymph takes on an opaque, whitish color. Then as it hardens it regains its’ normal color. Nymphs are vulnerable in this growing stage since they are highly visible to the fish. Even though I tied this originally for fishing during winter when I do the majority of my nymph fishing, it can be fished year round.
Hook: Gamakatsu C12U Caddis sz. 6 or8
Thread: Danville 140 Waxed Flymaster Plus, Red
Tail: Goose Biot, Black
Body: Hare’e Ice Dub, Hare’s Ear; Mirage Flashabou
Ribbing: Medium Ultra Wire, Red
Wings: Goose Biot, Black
Collar: Whiting Dry Fly Hackle, Grizzly
Head: Spirit River Hi-Lite Glass Bead, Medium Rootbeer
1: Place a glass bead onto the hook and wrap thread back to the bend of the hook.
2: Tie in two goose biots for your tails. Attach the Ultra Wire to top of hook shank and leave it trailing off the back of the fly for now.
3: Cut a small strip of mirage flashabou and tie it in on top of the ultra-wire and also leave it trailing off the back for now.
4: Dub on a body of Hare’s Ear Hare’e Ice Dub. Continue dubbing up the shank until you are 90% up the hook shank. Leave a small space between the dubbing and the glass bead.
5: Tie in a piece of hackle at the front of your dubbing. Palmer the hackle 2 or 3 times and lock it off.
6: With your left hand pull hackle fibers to the bottom side of the fly to make the legs and gills. Now with your right hand pull the Flashabou over the back of the fly and lock it off.
7: Now palmer the Ultra-wire ribbing up the body the back of the bead and lock it off.
8: Tie in 2 more goose biots for the wings on top, behind the bead, and lock them off.
9: Whip finish behind the bead and add a drop of cement.
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