NymphChimarra Caddis Larva

The Chimarra Caddis Larva imitates the tiny reddish-brown caddis larvae that are a significant source of food for trout throughout the year. This pattern is particularly effective during the early spring when these larvae become more active and are often dislodged from their rock homes.

Season
Spring
Difficulty
Beginner
Target Species
Trout
Chimarra Caddis Larva - Image source: DIY Fly Fishing
Image source: DIY Fly Fishing

Overview

This pattern imitates the small, dark caddis larvae of the Chimarra genus, often called little black caddis. It's tied with a black or dark brown thread body, fine wire ribbing for segmentation, and a sparse dubbed thorax. A dark bead or thread head completes the compact silhouette. It's ideal for nymph rigs in spring and early summer when these larvae are most active.

Pattern Characteristics

Beginner Difficulty
Trout
Moving Water
Spring
Imitates: Caddis Larvae

Materials

Hook: 2X-short emerger hook (here a Dai-Riki 125), sizes 16-20

Thread & Underbody: 6/0 or 140 Denier, orange

Body: Uni-Flex, yellow

Head: 6/0 brown

Fishing Tips

Season

Early spring when caddis larvae become more active.

Presentation

Dead drift near the bottom to imitate a dislodged larva.

When to Use

When you observe trout feeding near the bottom, as they may be feeding on caddis larvae.

Water Type

Best in moving water.

Rigging Suggestions

Use a strike indicator to detect subtle takes.

Visibility & Floatation

The Chimarra Caddis Larva is designed to sink and stay near the bottom. The Solarez Bone Dry UV resin shell not only gives the fly a realistic appearance but also adds some weight, helping it sink to the bottom.