Euro NymphsSquiggle Worm
The Squiggle Worm is a simple and effective euro nymph pattern that imitates aquatic worms with its distinctive squirmito material. The pink color and UV shrimp collar create an attractive hot-spot presentation that draws attention in clear water. Quick to tie with excellent underwater movement, making it a reliable pattern for technical presentations.
Year Round
Beginner
Trout
Overview
Developed by Fly Fish Food, this pattern leverages the lifelike movement of squirmito material to create a realistic worm imitation. The squirmito's segmented texture and natural wiggle action in the current closely mimics the undulating movement of live aquatic worms. The UV collar adds a subtle attraction point without overwhelming the natural appearance. Can be tied in various colors to match different water conditions.
Pattern Characteristics
Materials
Hook: Fulling Mill 5045 Jig Force Barbless, size #14
Bead: Fulling Mill Slotted Tungsten, metallic light pink, 3.0mm
Thread: Semperfli Classic Waxed Thread 12/0, fl. pink
Tail: Squirmito - Squiggly worm material, pink
Body: Squirmito - Squiggly worm material, pink
Collar: Ice Dub - UV Shrimp Pink
Fishing Tips
Season
Effective year-round as aquatic worms are present in streams throughout all seasons. Particularly productive after high water events or during runoff when worms are dislodged into the current. Works well in both winter and summer conditions when other food sources are scarce.
Presentation
Fish with a dead drift presentation in euro nymphing setups using tight-line techniques. Allow the fly to drift naturally along the bottom where worms typically move. The jig hook design helps the pattern ride hook-point up, reducing snags. Short-line nymphing works well in pocket water and seams.
When to Use
Excellent searching pattern when no visible hatch activity is present. Most effective in off-color water or after storms when worms are naturally present in higher numbers. Works well throughout the day but particularly effective during low-light conditions. Use when trout are feeding opportunistically on bottom-dwelling organisms.
Water Type
Designed for moving water applications, particularly in freestone streams and tailwaters. Most productive in riffles, runs, and deeper pools where worms collect. Works well in medium to fast currents where the tungsten bead helps achieve proper depth quickly. Effective in both small mountain streams and larger rivers.
Rigging Suggestions
Fish on 9-11 foot euro nymphing leader with 4X-5X fluorocarbon tippet. Use as point fly in two-fly euro rig with lighter pattern as dropper. Position 12-18 inches above a smaller nymph or midge pattern. The 3.0mm tungsten bead provides adequate weight for most water columns without additional split shot in moderate depths.
Visibility & Floatation
Sinks quickly due to the tungsten bead and slim profile of the squirmito material. The pink coloration provides good visibility to fish without being overly bright or unnatural. Reaches depths of 2-4 feet rapidly in moving water. The UV collar creates subtle flash that fish can detect even in deeper water or low-light conditions.
