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Exact finished green Perdigon nymph variation with a dark metal bead, orange collar, and slim resin body held in a fly vise that obscures the rear hook areaReal photo · Green resin-bodied Perdigon variant

Nymph · guide 09

Perdigon Nymph

A bead-led, resin-coated competition nymph built to reach fast or deep lanes with a small, low-drag profile.

Common size
#12–18 are common starting sizes; match the insect, water, hook, and legal weight, The photographed green form's exact hook and bead size are not established by its thumbnail
Common colors
olive or green, black, brown or quill, silver, pearl, or copper, orange or red collars and hot spots
Imitates
small mayfly nymph, midge or compact aquatic nymph, general fast-sinking micro-attractor
How to recognize it

A Perdigon is defined by architecture rather than one body color: a prominent bead, extremely slim body sealed under a smooth hard resin coat, sparse tail, compact collar, and little material to trap water. Jig hooks are common but not mandatory, and bead size or material, hook form, thread or tinsel body, rib, hot spot, tail, wing-case mark, and color remain explicit variants.

Perdigons developed within European competition nymphing and are associated especially with Spanish and French anglers. The reviewed sources differ on which national tradition deserves primary credit, so this page does not assign one inventor or country as the sole origin.
Exact finished green Perdigon nymph variation with a dark metal bead, orange collar, and slim resin body held in a fly vise that obscures the rear hook area
Real photo · exact pattern

Green resin-bodied Perdigon variant

Exact source-identified green Perdigon variation from Craig Wilcox's Creative Commons video thumbnail. The crop makes the bead, collar, and resin body readable; the vise masks the rear hook and tail area, and green is one variation rather than a universal recipe.

View
exact pattern variation — green Perdigon in source-video thumbnail
Color shown
metallic green body, orange collar, and dark metal bead
Look for
The source-named finished fly shows a large bead, very slim smooth resin body, bright collar, and compact profile under a tying magnifier; the vise obscures the rear hook and tail area.
Open full-size photo ↗

On the water

Know when and how to fish it.

Use these tips as a starting point. The river, depth, insects, and fish behavior still decide the final presentation.

01

Why it works

  • A dense bead and smooth compact body reduce water resistance, helping the fly enter a fast seam quickly without the bulky materials of a fuller nymph.
  • The narrow silhouette can suggest several small aquatic nymphs while a collar, rib, or hot spot preserves enough contrast for an attractor role.
  • Because the body absorbs little water and carries little mobile material, bead mass, leader angle, and current control—not hidden bulk—do most of the depth work.
02

When to use it

  • In fast pocket water, narrow seams, drop-offs, and deeper lanes where a conventional fiber-bodied nymph does not reach the target depth soon enough.
  • During contact or tight-line nymphing when a compact point fly helps maintain a direct, readable connection to the rig.
  • When sampled or observed food supports a small mayfly or micro-nymph profile, or when a deliberately labeled attractor is appropriate.
  • Choose a lighter bead, smaller fly, or different pattern in shallow slow water where the same density would snag, land too hard, or pass below feeding fish.
03

How to fish it

  • Set bead mass and leader length for one specific lane, then cast far enough upstream for the fly to descend before it reaches the fish.
  • Lead the fly only enough to stay in contact; pulling the leader faster than the current removes the natural drift the density was meant to reach.
  • Use short controlled drifts through pockets and seams, then reset before the fly sweeps unnaturally or the leader angle lifts it out of the lane.
  • Change bead mass, depth, angle, and drift speed before treating the photographed green body as a universal color answer.
04

Mistakes to avoid

  • Calling every resin-bodied bead-head or every jig nymph a Perdigon without checking the smooth slim shell and sparse construction.
  • Treating the photographed green, orange-collared form as the original or universal color recipe.
  • Using an oversized tungsten bead where a lighter fly would land, drift, and clear bottom more naturally.
  • Presenting a natural Baetis specimen or the fiber-bodied Pheasant Tail comparison as an exact Perdigon photograph.
  • Ignoring local rules for added weight, dropper rigs, hook style, barbs, or multiple flies.

At the vise

Tie this version.

Slim Resin-Coated Perdigon · intermediate

The exact gallery photograph is a metallic-green body with an orange collar and dark bead. The reviewed tying method describes the Perdigon architecture; hook, bead, body material, rib, tail, wing-case mark, collar, and color must remain labeled variations.

Materials

Hook
Fine-wire jig or straight nymph hook in the selected legal size
Bead
Slotted or round metal bead sized to the hook and intended lane; tungsten only when that density is needed and legal
Tail
Very sparse Coq de León, microfibetts, or similarly stiff fine fibers
Body
Tying thread, floss, quill, or fine tinsel kept in a smooth narrow taper
Rib or accent
Optional fine wire, tinsel, or contrasting thread used without adding bulk
Wing case and collar
Small dark marker or thread wing-case mark plus a compact contrasting or matching thread collar
Shell
Thin UV resin applied in controlled coats and cured completely

Steps

  1. Fit the bead to the chosen hook, seat it behind the eye, and secure the hook so the body can remain straight and centered.
  2. Start the thread immediately behind the bead and build only the minimum foundation needed to stabilize it.
  3. Tie in a short sparse tail and remove excess fibers along the shank so the underbody does not develop a ridge.
  4. Create a very slim even abdomen with thread, floss, quill, or tinsel; add any fine rib or accent without creating a full thorax.
  5. Form a tiny collar behind the bead and add a restrained dark wing-case mark only if the selected variation calls for one.
  6. Whip finish cleanly, clear the hook eye, and inspect the taper from both sides before applying resin.
  7. Apply a thin resin coat from the rear body to the collar, rotate the hook so the shell stays symmetrical, and cure it completely.
  8. Add only enough additional resin to seal gaps and smooth the profile; cure again, then verify that the hook gap and eye remain open.

Tying sources: Perdigon Nymph — Tying Times ↗, Fly Tying the Perdigon Nymph ↗

Common variations

Small changes can make a different fly.

One verified, non-AI source-video thumbnail supplies the exact green resin-bodied Perdigon variant. A scientific Baetis aureus specimen and a separately named Pheasant Tail Nymph are natural-anatomy and construction comparisons only; neither is another exact Perdigon angle, a local insect claim, or a second exact pattern.

Green resin-bodied Perdigon variation

The exact Creative Commons video thumbnail shows a source-identified finished Perdigon with a dark bead, orange collar, and smooth metallic-green body; the vise obscures the rear hook and tail area.
Colors shown
metallic green, orange collar, dark metal bead
Weighting
A large metal bead is visible; material, diameter, hook size, hidden underbody, and total mass are not established by the thumbnail.

Natural Baetis aureus anatomy reference

A scientific natural specimen shows a slim mayfly-nymph body, wing pads, gills, legs, and tails without becoming an exact imitation claim.
Colors shown
pale olive-tan preserved specimen
Weighting
Natural-insect reference; no artificial bead, hook, resin, or local-species claim is implied.

Pheasant Tail construction comparison

A separately named Pheasant Tail exposes a fiber body, wing case, fuller thorax, and legs that contrast with the smooth sparse Perdigon shell.
Colors shown
pheasant brown, copper
Weighting
Named artificial comparison only; not a Perdigon or an additional exact angle.

Related patterns

Blue-Winged Olive Patterns ↗Jig Fly Patterns ↗Frenchie Nymph ↗Rainbow Warrior ↗General Nymph Patterns ↗

How this guide was checked

Fly information and photo sources.

Guide checked on 2026-07-13. Every image has its own source and usage record. Natural insects and hand-tied flies can vary in shape and proportion.

Pattern sources

Fly Fishers International Fly Tying GroupPerdigon Nymph — Tying Times↗Fly FishermanFly Tying the Perdigon Nymph↗Fly FishermanWhen and How to Fish with a Perdigon Fly↗Craig WilcoxTying the Perdigon Nymph - A Beginner's Guide↗

Image credits