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.

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
Buy This Fly
Buy at Fly Fish Food—
catches logged by anglers
Target Species
Effective on These Rivers
Pattern Details
- Category
- Terrestrials
- Sizes
- 10–14
- Colors
- Bright green, Chartreuse
- Imitates
- inchworms, caterpillars, green worms
- Water Types
- freestone, spring creek
Buy This Fly
Buy at Fly Fish Food—
catches logged by anglers




