Isonychia Dry Fly Mayfly | Fly Fishing Flies For Less DiscountFlies
The Isonychia (also known as Great Western Leadwing, Slate Drake, Leadwing Coachman, Dun Variant, Mogany Dun or Iso) are found in many rivers of the They can first appear in June, and the hatch can extend through October. The body is olive to brown, with grey wings. These are big mayflies so you can match the hatch with #8 #12.
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