Euro NymphsMop Fly
A wildly effective attractor pattern that pushes the boundaries of traditional fly design. Built from microfiber chenille, the Mop Fly mimics cased caddis or grubs and excels in off-color water or high flows. Its oversized body and quick sink rate make it a staple in any Euro nymph box.
Year Round
Beginner
Trout
Overview
A high-sink-rate nymph pattern tied with a chenille or microfiber “mop” body, often in chartreuse, tan, or pink. Finished with a tungsten bead and optional hot-spot collar or dubbed thorax. Incredibly simple and fast to tie — just lash the mop to the hook, add a bead and flash if desired. Deadly as an anchor fly in Euro rigs or high water conditions.
Pattern Characteristics
Materials
Hook: Hanak H 400 BL Jig Hook, sizes #10-#12
Thread: UTC Ultrathread 140 Denier - Brown
Bead: Hareline Slotted Tungsten Beads - Black - 5/32" (3.8mm)
Tail/Body: Mop Bodies - Cream
Collar: SLF Spikey Squirrel Dubbing - Natural Gray
Fishing Tips
Season
Year Round
Presentation
Dead drift with Euro nymph or indicator rig; twitching can entice strikes
When to Use
Best in high water, runoff conditions, or when fish are hugging the bottom
Water Type
Stillwater, Moving Water
Rigging Suggestions
Excellent as a point fly in Euro nymph setups or as a dropper below a dry fly
Visibility & Floatation
Sinks fast due to tungsten bead and dense chenille body; very visible in turbid water; Solarez resin boosts durability and subtle flash
