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The Light Hendrickson dry fly is a popular pattern that imitates the adult stage of the Ephemerella subvaria mayfly, also known as the Hendrickson mayfly. This fly is particularly effective during the spring when these mayflies hatch in abundance. It’s a go-to pattern for many anglers during this time.

Materials Used:

• Hook: Standard dry fly hook, usually in sizes 12-16 (e.g., TMC 100 or Mustad R50-94840).
• Thread: Light pink, tan, or gray 6/0 or 8/0 thread.
• Tail: Light or medium dun hackle fibers, tied sparsely.
• Body: Light pink or pale tan dubbing, often a mix of natural fur like rabbit or synthetic material to match the natural insect’s body color.
• Wings: Paired upright wings made from light gray or light dun duck or goose quill segments, or a similar synthetic material.
• Hackle: Light dun or medium dun rooster hackle, wound around the hook near the wings.

Target Trout:

The Light Hendrickson is highly effective for targeting several trout species, especially during the spring hatch:

• Brown Trout
• Rainbow Trout
• Brook Trout
• Cutthroat Trout

This pattern is most effective during the hatch period of the Hendrickson mayfly, typically in late April to early May in many regions. It’s fished on the surface, often in slower pools or runs where trout are feeding on emerging or adult mayflies.