Offline — showing saved data
Pattern Library
UV Perdigon fly pattern
Nymph · #359 of 382

UV Perdigon

The UV Perdigon is a slim modern euro nymph in the perdigon family, built around a uv-reflective body for fast sink rate and high-confidence trout takes. It supports UV Perdigon fly pattern, perdigon nymph, and best euro nymph for trout searches.

Imitates: Mayfly nymphs in low light and stained water

Quick Reference

Best Sizes
#14-20
Best Season
Year-round
Best Conditions
Clear riffles, deep slots, and technical trout water on tight-line rigs
Water Temp
40-62°F
Recommended Tippet
5X-6X fluorocarbon

How to Rig It

Fish the UV Perdigon as the point fly on a euro rig in moderate depth, or above a heavier anchor in deep runs.

How to Present It

Lead the fly on a tight drift just faster than the bubbles, keeping near-constant contact through the seam.

Why It Works

The slim uv-reflective body penetrates fast water quickly while still presenting a clean natural silhouette pressured trout will eat.

History

Perdigons originated in Spain as competition flies and now define modern euro nymphing across U.S. trout rivers.

Pro Tip

Carry the UV Perdigon in multiple sizes — drop one full size in pressured tailwater before changing colors.

Frequently Asked Questions

What does the UV Perdigon imitate?+

Mayfly nymphs in low light and stained water — fish it as a slim natural nymph in clear water.

When should I fish the UV Perdigon?+

Fish it whenever you need maximum sink rate and a clean perdigon silhouette for selective trout.

Try the Fly Advisor

Not sure if UV Perdigon is right today?

Get a fly recommendation based on live water temp, flow, sky, and time of day for any river in the US.

Open Fly Advisor
MapFly GuideStrike ZoneReportsLogTools