Dry FliesThe Jassid

The Jassid is a classic dry fly pattern designed to imitate small terrestrial insects like beetles or jassids. Its simple design and dark silhouette make it an effective pattern when fish are feeding on small terrestrials.

Season
Summer, Fall
Difficulty
Beginner
Target Species
Trout
The Jassid - Image source: Missouri Trout Fisherman
Image source: Missouri Trout Fisherman

Overview

A minimalist terrestrial pattern featuring a thin black thread body, short hackle, and green or red wing made from beetle shell or feather slip. It imitates tiny beetles or aphids and is best tied small (size #18–#22). Its simplicity and shine are key to its success.

Pattern Characteristics

Beginner Difficulty
Trout
Stillwater
Moving Water
Summer
Fall
Imitates: Small terrestrial insects

Materials

Hook: #18-24 Tiemco 100
Thread: Brown 14/0 or 16/0 Veevus
Hackle: Grizzly Whiting High and Dry Rooster Cape
Body: Chocolate Brown Hareline Dubbing
Wing: Natural Jungle Cock
Glue: Brush On Zap A Gap

Fishing Tips

Season

The Jassid is most effective in summer and early fall when terrestrial insects are abundant.

Presentation

Cast the Jassid near overhanging vegetation and let it drift naturally with the current.

When to Use

Use this fly when fish are feeding on small terrestrial insects, particularly near the banks of streams or around overhanging vegetation.

Water Type

This fly works in both still and moving waters.

Rigging Suggestions

Consider using a lighter tippet to allow for a more natural drift.

Visibility & Floatation

The Jassid floats on the surface of the water. Its white Antron wing makes it highly visible to both the angler and the fish.

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