Dry FliesBiot Parachute

A favorite among dry fly enthusiasts, the Biot Parachute is a classic pattern that imitates various mayfly species. The biot body provides a realistic segmented look, and the parachute hackle allows for a delicate presentation.

Season
Spring, Summer
Difficulty
Intermediate
Target Species
Trout
Biot Parachute - Image source: AvidMax
Image source: AvidMax

Overview

The Biot Parachute is a refined mayfly dry fly pattern that features a segmented biot body—typically from turkey or goose—for a clean, realistic silhouette. It's tied with a parachute-style hackle around a post made from white or Hi-Vis material like poly yarn or CDC for visibility. The thorax is lightly dubbed, and the sparse hackle allows the fly to sit flush in the film while still providing floatation. This pattern is excellent for matching slender-bodied mayflies in clear or slow-moving water.

Pattern Characteristics

Intermediate Difficulty
Trout
Stillwater
Moving Water
Spring
Summer
Imitates: Mayflies

Materials

Hook: Tiemco 100, size #12–#20
Thread: Olive UTC 70 denier
Tail: Brown hackle fibers
Body: Olive goose biots
Post: White Poly Yarn
Hackle: Grizzly hackle
Thorax: Olive Superfine Dubbing

Fishing Tips

Season

Spring, Summer

Presentation

Use a delicate upstream cast and let the fly drift naturally.

When to Use

During mayfly hatches or when trout are seen rising to the surface.

Water Type

Effective in both stillwater and moving water.

Rigging Suggestions

Use a 9-foot leader with a 5X tippet.

Visibility & Floatation

The white post makes the fly visible from a distance. The parachute hackle allows the fly to float high and land softly on the water.

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