LeechIntruder Leech
The Intruder Leech adapts the popular intruder-style shank system to create a versatile leech pattern with exceptional movement. Built on a Senyo's Micro Shank with a trailing stinger hook, this design produces a lifelike swimming action that triggers aggressive strikes from large trout and steelhead. The articulated construction allows the pine squirrel body to undulate independently for maximum fish appeal.
Year Round
Advanced
Trout, Steelhead
Overview
This tightlinevideo pattern demonstrates how intruder-style construction creates superior movement in leech patterns. The trailing hook improves hookup rates on short strikes, while the articulated design allows the fly to swim and pulse naturally. The fluorescent green butt serves as a subtle attractor element without overwhelming the natural olive coloration. Pine squirrel offers excellent movement with a slimmer profile than rabbit.
Pattern Characteristics
Materials
Shank: Senyo's Micro Shank, 17mm
Thread: Olive, 6/0 or 140-denier
Eyes: Bead-chain eyes, black, medium
Hook: Partridge Z4 Intruder hook, #8
Connection: Braided line, 30-pound-test
Butt: Angora goat dubbing, fluorescent green
Body/Tail: Pine squirrel zonker strip, sculpin olive
Collar: Pine squirrel hair
Fishing Tips
Season
Year-round effectiveness with peak performance during spring and fall when larger fish are most aggressive. Summer and winter fishing can be productive with slower presentations in deeper holding water.
Presentation
Swing through runs and pools with a down-and-across presentation. The articulated design creates natural swimming action during the swing. In stillwater, use a slow strip retrieve with pauses to let the materials pulse.
When to Use
Select this pattern when targeting larger predatory fish or when standard leeches are being refused. The intruder design is particularly effective in off-color water where the larger profile increases visibility.
Water Type
Versatile for both moving water and stillwater. In rivers, swing through deep runs, pool tailouts, and along current seams. In lakes, fish along structure and drop-offs where big fish ambush prey.
Rigging Suggestions
Fish on 7-9 foot leader with 1X-2X fluorocarbon tippet. Use floating line with sink tips in rivers, full sinking lines in stillwater. The articulated design casts well despite its size when properly balanced.
Visibility & Floatation
The bead-chain eyes provide a subtle sink rate and create an up-and-down jigging action during the retrieve. The pine squirrel maintains excellent movement even at slow speeds. The fluorescent butt adds visibility in murky conditions without spooking fish in clear water.
