Isonychia Nymph

Pattern Name: Isonychia Nymph
Pattern Tied by: Dick Pearce

The Isonychia Bicolor is commonly known as the Slate Drake, Leadwing Coachman, and Mahogony Dun. They're in the water from the third week in March to late October. and are smaller in the fall.Picture of nymph from Troutnut.

Hook: 2 x nymph, size 12 and 10
Weight or bead: optional
Thread: Brown or black
Tail: 3 brown ostrich tails or pheasant tail herls
Rib: Brown thread (3/0)
Back Marking: (Optional) heavy white sewing thread (3/0)
Body: Five or six strands of Peacock Herl (bronze color, if you've got it)
or rusty brown rabbit dubbing.
Thorax: Same as body
Wing case: Black poly yarn or Web Wing
Legs: Brown hen neck or partridge

Tying legsTrim feather to right size and clip the center out. Make sure the spine is in the center of the wingcase before pulling it over. Tie in wingcase, clip excess, and make a head.

To see the techniqies for this tricky fly see Andrew Moy's video. He uses some different materials.