Isonychia Dry Fly Mayfly

DiscountFlies Isonychia aka Iso's Are Tied on Gamakatsu, Tiemco or Daiichi Hooks, By The Worlds Finest Fly Tier's. Experience True Fly Shop Quality Flies On Your Next Fly Fishing Trip!
The Isonychia (also known as Great Western Leadwing, Slate Drake, Leadwing Coachman, Dun Variant, Mahogany Dun or Iso) are found in many rivers of the U.S. 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. Good Spinner falls occur in the morning or evening.