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Dry FliesDustup Caddis

The Dustup Caddis is a versatile dry fly that mimics a caddisfly in its adult stage. Its unique design allows it to ride high in the water, making it highly visible and attractive to feeding trout.

Season
Spring, Summer
Difficulty
Intermediate
Target Species
Trout
Updated
Apr 2025
Dustup Caddis fly pattern - imitates Caddis tied for Trout

Overview

A low-floating, soft-bodied caddis pattern often tied with CDC or Antron for the wing, a sparse dubbed body, and micro-fibers for legs. It imitates an adult caddis struggling to emerge and works especially well during the transitional stages of a hatch.

Materials

Hook: Tiemco 100, size #12–#16
Thread: Tan UTC 70 denier
Body: Olive hare's ear dubbing
Wing: Natural deer hair
Hackle: Grizzly saddle hackle
Head: Tan deer hair

Behavior & Presentation

Natural Behavior: Emerging caddis pupae ascend rapidly through the water column, creating visible disturbance as they break through the surface film. This vertical movement triggers aggressive strikes.

Where Trout Eat It: Fish position at mid-depth in runs and pools, intercepting ascending pupae during emergence windows.

How to Fish It: Swing across current or lift during the drift to mimic the ascending pupa's rapid rise to surface.

Best Water: Target runs with consistent depth, current seams where pupae concentrate, and pool tail-outs.

Strike Type: Solid grabs during the swing or lift as fish intercept the rising pupa.

Fishing Strategy

Rigging Suggestions: Use a tapered leader to help with delicate presentations.

Seasonal Timing: Best used in late and throughout the when caddis are most active. Ideal when you see trout feeding on the surface, especially in the evenings when caddis are hatching.

Pro Tips: The deer hair wing and hackle help this fly to float high in the water, making it easy to spot.

Entomology

Adult caddisflies skitter and bounce erratically across the water surface during ovipositing runs, creating commotion that attracts predators. Trout rise aggressively to these active adults because the insects' frantic surface activity triggers a feeding response, and the concentrated emergence periods provide brief but intense feeding opportunities throughout summer and early fall.

Order
Trichoptera
Common Name
Caddisfly
Organism Type
insect
Life Stage
adult

Pattern Characteristics

Intermediate Difficulty
Trout
Stillwater
Moving Water
Spring
Summer
Imitates: Caddis
Worldwide
dead-drift
caddis-hatch
searching-pattern