Diamond Jig Leech

The Diamond Jig Leech is a Fly Fish Food pattern that combines the effectiveness of Arizona Diamond Dub with a jig-style presentation. The matte black tungsten bead and black red diamond dub create a dark, buggy profile with subtle flash that triggers strikes from trout in both moving water and stillwater. Built on a barbless jig hook, this pattern rides point-up to reduce snags.

Diamond Jig Leech fly pattern - imitates Leeches tied for Trout
  • Intermediate
  • Year Round
  • Trout
  • Size 8

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The Diamond Jig Leech is a Fly Fish Food pattern that combines the effectiveness of Arizona Diamond Dub with a jig-style presentation. The matte black tungsten bead and black red diamond dub create a dark, buggy profile with subtle flash that triggers strikes from trout in both moving water and stillwater. Built on a barbless jig hook, this pattern rides point-up to reduce snags.

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Materials

Hook
Umpqua XC400BL-BN (or Hanak H 400 BL Jig Hook), #8
Thread
Danville 140 Denier Waxed Flymaster Plus Thread, black
Bead
Fulling Mill Slotted Tungsten Beads, matte black, 3.8mm
Tail
Nature's Spirit Premium Bugger Bou, black
Body
Arizona Diamond Dub, black red

Overview

This Fly Fish Food pattern by Cheech showcases the effectiveness of Arizona Diamond Dub for creating buggy, sparkle-filled leech patterns. The black red color combination provides a dark base with subtle red highlights that become visible as the fly moves through the water. The matte black tungsten bead adds weight without excessive flash, allowing the diamond dub body to provide all the attraction needed.

Related patterns

Behavior & presentation

Natural Behavior
These aquatic worms propel themselves with rhythmic body contractions creating wavelike ripples along their length. When crossing open water between cover, leeches become easy high-protein targets that trout consume opportunistically year-round.
Where Trout Eat It
Trout hunt leeches throughout the water column along weed edges, pocket water, pool tail-outs, and structure.
How to Fish It
Dead drift through holding water or use slow strip retrieve, letting diamond dub body catch light and create flash with every movement.
Best Water
Work deep runs, pocket water, pool tail-outs, weed edges, and structure where leeches migrate.
Strike Type
Trout track this pattern and take with steady acceleration, producing gradual line draws rather than sudden strikes. Feel the rod load progressively as fish swim away with the leech, often pausing briefly to reposition the fly before continuing their run with sustained pressure.

Fishing strategy

Rigging Suggestions
Fish on 9-12 foot leader with 4X-5X fluorocarbon tippet. The 3.8mm tungsten bead provides adequate weight for reaching deeper holding water. Works well as a point fly or anchor fly in multi-fly rigs.
Seasonal Timing
effectiveness with peak performance during low-light conditions when the subtle flash of the diamond dub becomes more visible to trout. Choose this pattern when fish are responding to dark, buggy profiles with subtle flash.
Pro Tips
The matte black tungsten bead provides rapid sink rates without flash. The black red Arizona Diamond Dub creates a distinctive silhouette with internal sparkle that catches light as the fly moves through the water column.
From River & Run

Where to fish it

Rivers anglers pair with this fly, with local shops that stock it.

Open River & Run

River details and fly shops from River & Run, our sister site.

Entomology

Leeches swim through stillwater and slow current with a distinctive undulating motion, their ribbon-like bodies contracting and extending in rhythmic waves. Trout target these protein-rich invertebrates opportunistically, especially when leeches are swimming between cover or across open water where they become vulnerable to predation.

Organism
leech
Life stage
general

Pattern details

  • Moving Water
  • Stillwater
  • Worldwide
  • Rocky Mountain
  • active-retrieve
  • strip-retrieve
  • searching-pattern
  • high-water

Get this fly

Diamond Jig Leech, tied and ready to fish

Hook #8 · Intermediate