Tying the Isonychia Nymph with Rich DiStanislao

Isonychia Nymph
The isonychia nymph - commonly called the "Slate Drake" nymph - is a fast swimmer and emerges from deep water then swims to rocks and weeds to molt as a dun. They are great flies to have on the Little Juniata, Poconos, Delaware, Catskills, and Yellow Breeches, here in Central PA.
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Materials:
Hook: Daiichi 1770 or TMC 400, size 12
Thread: Brown, 8/0 unithread
Tails: Bronze color peacock herl tips or brown pheasant tail fibers
Medial Stripe: White Ultra Wire, brassie size
Gills: Gray ostrich herl
Ribbing: Ultra fine gold wire
Wing case: Black thin skin
Legs: Brownish partridge feather
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[@zenbooter]

It is very effective. Jersey angler featured it years ago. It may have been Lou Truppi who featured it with tying instructions included. I have been tying it his method and always produces. Thanks Rich.

[@brettwood5810]

very nice pattern rich