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Northern Michigan Fly Fishing
Fly Fishing for Steelhead
smallmouth bass on the fly

Hendrickson Mayfly Pattern

Hendrickson Dun

Ephemerella subvaria Dun – Hendrickson

The Hendrickson hatch is one of the first prolific mayfly hatches of the season, often corresponding with opening day of trout season.  Females have dull brown bodies with lighter colored legs and wings of brown or brownish gray.  Males, slightly smaller in stature, have more pinkish brown bodies, lighter colored legs, and darker wings, tending toward a slate gray.

Hendrickson Duns generally emerge in mid-afternoon when temperatures are ideal, but can also hatch during miserable cold and wet weather.

Hendrickson mayfly

Hendrickson mayfly

Hendrickson Dun Material List

  • Hook: TMC 100 size 14
  • Thread: Pink 8/0
  • Shuck: Kinky Z-Lon Olive Brown
  • Tail: Bronze Mallard
  • Body: Turkey Wing Feather dyed Pink
  • Wing: Hi-Vis Smokey Grey
  • Hackle: Dark Dun
Hendrickson mayfly

Cover the hook with a good thread base.

Hendrickson mayfly

Tie in the Z-lon material for the shuck.

Hendrickson mayfly

Tie in the Mallard Flank feather for the tail.

Hendrickson mayfly

Continue to cover the materials up to and just short of the hook eye to keep an even taper to the body.

Hendrickson mayfly

Tie in the Turkey Wing material for the body.

Hendrickson mayfly

Twist the material as you wrap it forward. Now wrap your thread over the body working towards the tail in one direction and reversing the direction as you come back to the endpoint to get a Criss-cross pattern over the body.  This will make the fly more durable.

Hendrickson mayfly

Tie in your hackles.

Hendrickson mayfly

Tie in your Hi-vis wing material, we will trim it later.

Hendrickson mayfly

Wrap your hackle forward towards the hook eye, but be sure to put a couple of wraps behind the wing and then move forward.

Tie of the hackle and whip finish the fly.

Hendrickson mayfly

Trim the wing, use the length of the hook as a length guide.

Hendrickson mayfly

Trim the hackles underneath the fly to make sure the fly sits right on the water.

Manistee River Brown Trout that fell prey for a Hendrickson Dun

Hendrickson mayfly

Additional Dry Fly Patterns

  • Hendrickson Emerger Pattern

  • Gray Drake Spinner Video - Ed McCoy

    Mid May we start to see Gray Drakes this spinner is a must have.

  • Sulphur Dun Pattern

    Sulphur Dun Dry Fly pattern, great pattern for the Upper Manistee River

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