Mahogany Wiry Flymph

Hook: 1X- or 2X-long nymph hook, size 12.
Thread: Black 6/0 (140 denier) to 10/0 (70 denier).
Tails: Pheasant-tail fibers.
Body: Black and wine Ultra Wire twisted together.
Thorax: Equal parts black and natural rabbit fur.
Collar: Speckled hen back.

Note: This fly represents an Isonychia nymph. Fish it with an active retrieve.