Terrestrials

Inchworm

A simple bright-green chenille or foam pattern that imitates the caterpillars and inchworms that drop from overhanging trees into trout streams in spring and early summer. When caterpillar activity is heavy, trout line up under trees and eat them with reckless abandon.

Inchworm fly pattern

How to Fish It

Cast under overhanging trees in spring and early summer. Dead drift along shady banks where caterpillars naturally fall into the water.

Frequently Asked Questions

What size Inchworm should I use?

The Inchworm is most commonly tied in sizes 10–14. Choose smaller sizes for clear water and pressured fish, and larger sizes for faster or off-color water.

What does a Inchworm imitate?

The Inchworm primarily imitates inchworms, caterpillars, green worms. Cast under overhanging trees in spring and early summer. Dead drift along shady banks where caterpillars naturally fall into the water.

How do you fish a Inchworm?

Cast under overhanging trees in spring and early summer. Dead drift along shady banks where caterpillars naturally fall into the water.

Pattern Details

Category
Terrestrials
Sizes
10–14
Colors
Bright green, Chartreuse
Imitates
inchworms, caterpillars, green worms
Water Types
freestone, spring creek

catches logged by anglers

Target Species

rainbow troutbrown troutbrook troutcutthroat trout

Effective on These Rivers

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