NymphCDC Downey Wonder Nymph

The CDC Downey Wonder Nymph is an effective pattern that imitates a variety of aquatic insects in their nymphal stage. The use of CDC feathers gives the fly a lifelike movement in the water, making it irresistible to trout.

Season
Spring, Summer, Fall
Difficulty
Intermediate
Target Species
Trout
CDC Downey Wonder Nymph - Image source: InTheRiffle
Image source: InTheRiffle

Overview

This soft, buggy nymph uses CDC in the thorax and tail to add subtle movement and trap air bubbles, mimicking an emerging insect. Typically tied with a sparse dubbed body and fine wire rib, it's a simple, effective pattern for picky trout in clear water.

Pattern Characteristics

Intermediate Difficulty
Trout
Stillwater
Moving Water
Spring
Summer
Fall
Imitates: Aquatic Insects

Materials

Hook: Tiemco 3769, size #12-#16
Thread: Olive Dun 8/0
Bead: Copper, 2.5mm
Tail: Coq de Leon
Body: Olive dubbing
Ribbing: Copper wire
Thorax: Peacock herl
Wingcase: CDC feathers

Fishing Tips

Season

Spring, Summer, Fall

Presentation

Dead drift with occasional twitches to imitate a struggling nymph.

When to Use

When trout are feeding subsurface, typically during non-hatch periods.

Water Type

Effective in both stillwater and moving water. Can be used in tailwaters and freestone streams alike.

Rigging Suggestions

Can be used in a tandem nymph rig with a heavier pattern to get it down in the water column.

Visibility & Floatation

This nymph pattern is designed to sink and imitate a struggling nymph. Its slim profile and natural colors make it less visible, but more appealing to trout.