Isonychia Dry Fly Mayfly

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.
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Isonychia Dry Fly Mayfly - Bocher's Parachute

 

Size 10 (112 Available)
Size 12 (103 Available)
Size 14 (112 Available)
Size 16 (114 Available)

  • Code: D-BCP
  • Price as low as: $1.24
  • Quantity in Basket: none

This pattern works great as an imitation for any dark mayfly, or as an attractor pattern.
Prices for Bocher's Parachute
1-2 flies
$1.88 ea.
3-5 flies
$1.65 ea.
6-11 flies
$1.41 ea.
12+ flies
$1.24 ea.
Average Customer Rating (5 flies is best): Not yet rated
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Isonychia Dry Fly Mayfly - Brown Drake Paradrake

 

Size 10 (376 Available)
Size 12 (360 Available)
Size 14 (143 Available)

  • Code: D-BRDR
  • Price as low as: $1.31
  • Quantity in Basket: none

The mahogany dun imitates the adult Isonychia bicolor mayfly. Brown drakes are a burrowing type of mayfly, but when they hatch, trout key in to this large trout fly. This mayfly hatches twice during the year with intermittent hatches in between. Trout absolutely lose their inhibitions at the sight of this mayfly. Good luck!!!
Prices for Brown Drake Paradrake
1-2 flies
$1.99 ea.
3-5 flies
$1.75 ea.
6-11 flies
$1.49 ea.
12+ flies
$1.31 ea.
Average Customer Rating (5 flies is best): 5.00
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Isonychia Dry Fly Mayfly - Dark Henny

 

Size 10 (54 Available)
Size 12 (40 Available)
Size 14 (31 Available)
Size 16 (58 Available)

  • Code: D-DKHY
  • Price as low as: $1.19
  • Quantity in Basket: none

The Dark Henny imitates a Dark Hendrickson Mayfly as well as a Brown Drake and Isonychia Mayfly.
Prices for Dark Henny
1-2 flies
$1.80 ea.
3-5 flies
$1.58 ea.
6-11 flies
$1.35 ea.
12+ flies
$1.19 ea.
Average Customer Rating (5 flies is best): Not yet rated
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Isonychia Dry Fly Mayfly - Dark Roberts ISO

 

Size 8 (114 Available)
Size 10 (6 Available)
Waiting List Size 12

  • Code: D-DRIS
  • Price as low as: $1.29
  • Quantity in Basket: none

Prices for Dark Roberts ISO
1-2 flies
$1.95 ea.
3-5 flies
$1.72 ea.
6-11 flies
$1.46 ea.
12+ flies
$1.29 ea.
Average Customer Rating (5 flies is best): Not yet rated
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Isonychia Dry Fly Mayfly - Daytime Drake

 

Size 8 (127 Available)
Size 10 (116 Available)
Size 12 (121 Available)

  • Code: D-DTD
  • Price as low as: $1.39
  • Quantity in Basket: none

Prices for Daytime Drake
1-2 flies
$2.10 ea.
3-5 flies
$1.85 ea.
6-11 flies
$1.58 ea.
12+ flies
$1.39 ea.
Average Customer Rating (5 flies is best): Not yet rated
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Isonychia Dry Fly Mayfly - Hackle Stacker - Rust

 

Size 12 (120 Available)
Size 14 (120 Available)
Size 16 (120 Available)
Size 18 (120 Available)

  • Code: D-HSRS
  • Price as low as: $1.09
  • Quantity in Basket: none

Prices for Hackle Stacker - Rust
1-2 flies
$1.65 ea.
3-5 flies
$1.45 ea.
6-11 flies
$1.24 ea.
12+ flies
$1.09 ea.
Average Customer Rating (5 flies is best): Not yet rated
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Isonychia Dry Fly Mayfly - Parachute Brown Drake

 

Size 8 (136 Available)
Size 10 (133 Available)
Size 12 (103 Available)
Size 14 (105 Available)

  • Code: D-PBD
  • Price as low as: $1.24
  • Quantity in Basket: none

Prices for Parachute Brown Drake
1-2 flies
$1.88 ea.
3-5 flies
$1.65 ea.
6-11 flies
$1.41 ea.
12+ flies
$1.24 ea.
Average Customer Rating (5 flies is best): Not yet rated
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Isonychia Dry Fly Mayfly - Parachute ISO

 

Size 10 (238 Available)
Size 12 (221 Available)
Size 14 (209 Available)

  • Code: D-PISO
  • Price as low as: $1.36
  • Quantity in Basket: none

Prices for Parachute ISO
1-2 flies
$2.06 ea.
3-5 flies
$1.81 ea.
6-11 flies
$1.54 ea.
12+ flies
$1.36 ea.
Average Customer Rating (5 flies is best): Not yet rated
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Isonychia Dry Fly Mayfly - Sparkle Dun - Grey Drake

 

Size 10 (54 Available)
Size 12 (49 Available)
Size 14 (48 Available)
Size 16 (57 Available)

  • Code: D-SDGR
  • Price as low as: $1.02
  • Quantity in Basket: none

Prices for Sparkle Dun - Grey Drake
1-2 flies
$1.54 ea.
3-5 flies
$1.36 ea.
6-11 flies
$1.16 ea.
12+ flies
$1.02 ea.
Average Customer Rating (5 flies is best): Not yet rated
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Isonychia Dry Fly Mayfly - Sparkle Dun - Rusty Brown

 

Size 10 (60 Available)
Size 12 (56 Available)
Size 14 (60 Available)
Size 16 (60 Available)

  • Code: D-SDRB
  • Price as low as: $0.99
  • Quantity in Basket: none

Prices for Sparkle Dun - Rusty Brown
1-2 flies
$1.50 ea.
3-5 flies
$1.32 ea.
6-11 flies
$1.12 ea.
12+ flies
$0.99 ea.
Average Customer Rating (5 flies is best): Not yet rated