Pattern Library
Trico fly pattern
Dry · #15 of 129

Trico

Imitates: Tricorythodes spinner

Quick Reference

Best Sizes
#20-24
Best Season
Late summer through early fall
Best Conditions
Calm flat water, morning spinner falls
Water Temp
55-68°F
Recommended Tippet
6X-7X

How to Rig It

Single dry on a long, fine leader.

How to Present It

Drag-free drift over pods of sipping fish. Cast slightly upstream and across.

Why It Works

Trico spinner falls carpet the water with thousands of dead mayflies. Trout line up in feeding lanes and gulp them down.

History

Trico mania is a rite of passage on rivers like the Bighorn, Missouri, and Henry's Fork — early-morning, technical, and addictive.

Pro Tip

Tie a #22 Trico spinner with a #24 trailing 4" behind — fish often refuse the lead and grab the trailer.

Frequently Asked Questions

Why are Tricos so hard to fish?+

Tiny size (#22-24), fine tippet (6X-7X), and selective trout in glass-flat water make Trico fishing one of fly fishing's purest tests.

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