Dry FliesCDC Comparadun

The CDC Comparadun is a versatile dry fly that is highly effective during a mayfly hatch. It's tied with CDC feathers to provide a realistic, delicate silhouette on the water, making it irresistible to trout.

Season
Spring, Summer
Difficulty
Intermediate
Target Species
Trout
CDC Comparadun - Image source: Midcurrent
Image source: Midcurrent

Overview

A low-profile dry fly using CDC fibers instead of deer hair for the comparadun-style wing. Combined with a slender dubbed body and split tail (usually microfibets), it sits flush in the film and imitates mayfly duns with delicate realism. Perfect for slow, clear water where soft presentation is critical.

Pattern Characteristics

Intermediate Difficulty
Trout
Stillwater
Moving Water
Spring
Summer
Imitates: Mayflies

Materials

Hook: Tiemco 100, size #12–#16
Thread: Olive Dun 8/0 Uni-Thread
Body: Superfine dubbing in olive
Wing: Natural dun CDC feathers
Tail: Coq de Leon fibers

Fishing Tips

Season

Spring and Summer

Presentation

Cast upstream and let the fly drift naturally with the current.

When to Use

Most effective during a mayfly hatch, particularly on overcast days.

Water Type

Effective on both stillwater and moving water.

Rigging Suggestions

Consider using a tapered leader for better turnover and a more natural presentation.

Visibility & Floatation

The CDC wing helps this fly float and makes it highly visible on the water. Use floatant to keep it riding high.

Additional Videos