Grannom Emerger Fly

Grannom Emerger

A specialized pattern designed to specifically mimic the emerging stage of the grannom caddisfly,

How it's tied

The Grannom Emerger is tied on a curved or straight nymph hook. The body is typically made from a blend of dubbing, often in shades of olive or green to mimic the natural insect. The tail and optionally legs are usually made from dark, fine fibers that add to the insect-like silhouette.

The head of the fly is usually made with the tying thread, and then finished with a whip finish and head cement for durability. To mimic the natural insect's color variation and segmentation, the abdomen can be ribbed with a contrasting thread or wire.

What it mimics

The Grannom Emerger fly is designed to imitate the emerging stage of the grannom caddisfly as it transitions from a pupa to an adult, an important food source for trout and other fish species. 

Where it's used

The Grannom Emerger is most effectively used in rivers and streams during a grannom caddisfly hatch, which typically occurs in the spring. It can be fished just beneath the surface to mimic a rising emerger, or deeper in the water column where trout are feeding on ascending pupae.

This fly pattern is primarily used for trout, but can also be effective for other species that feed on caddisflies, such as grayling.

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Fish you can can fly fish for with the Grannom Emerger

Brook trout

Brown Trout

Cutthroat Trout

Golden Trout


Marble Trout

Rainbow Trout


Caddisflies (Latin: Trichoptera)

The Grannom Emerger mimics one or more species from the insect order Caddisflies

Latin: Trichoptera

Caddisflies are aquatic insects, closely related to moths, with larvae that construct protective cases from various materials found in their environment.

Read more about Caddisflies

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