Midge / EmergersWD-40

A simple yet effective midge pattern that mimics various stages of a midge's lifecycle. It's a great choice when trout are selectively feeding on midges.

Season
Spring, Summer, Fall
Difficulty
Beginner
Target Species
Trout
WD-40 - Image source: The Feather Bender
Image source: The Feather Bender

Overview

A simple emerger/nymph pattern featuring a thread body, sparse dubbing thorax, and soft wing made from mallard or Antron. Typically tied in gray, olive, or brown, with a slim profile that matches midge or small mayfly emergers.

Pattern Characteristics

Beginner Difficulty
Trout
Moving Water
Stillwater
Spring
Summer
Fall
Imitates: Midges

Materials

Hook: #16-22 Tiemco 2487
Thread: Tobacco 6/0 Danville
Tail: Woodduck Gold Mallard Flank
Body: Tobacco 6/0 Danville
Casing: Woodduck Gold Mallard Flank
Thorax: Grey Muskrat or Beaver Dubbing

Fishing Tips

Season

This fly is most effective from spring through fall, when midges are most active.

Presentation

Fish this pattern in the surface film or just below the surface.

When to Use

Use the WD-40 when trout are selectively feeding on midges.

Water Type

This fly works well in both moving and still water.

Rigging Suggestions

The WD-40 can be fished alone, as a dropper behind a dry fly, or in a tandem nymph rig.

Visibility & Floatation

This fly is designed to sit in or just below the surface film, imitating a midge pupa or emerger. Its small size can make it difficult to see, so it's often fished as a dropper behind a more visible fly.

Additional Videos