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Iris Caddis fly pattern
Emerger · #170 of 382

Iris Caddis

Imitates: Emerging caddis with trailing shuck

Quick Reference

Best Sizes
#14-18
Best Season
Spring through fall
Best Conditions
Caddis hatches, slick seams, riffle edges, spring creeks and freestones
Water Temp
52-68°F
Recommended Tippet
5X-6X

How to Rig It

Fish alone during a hatch or behind a buoyant caddis dry.

How to Present It

Dead-drift through rising fish. The white wing gives visibility while the shuck signals vulnerability.

Why It Works

Trout often prefer caddis emergers trapped in or just below the film over adults that have already escaped. The Iris Caddis nails that stage perfectly.

History

Craig Mathews popularized the Iris Caddis on the Missouri and Yellowstone region, and it spread quickly as one of the best caddis emergers ever tied.

Pro Tip

If fish are splashing at caddis but ignoring adult dries, tie on an Iris Caddis before changing locations. They are usually eating emergers, not the fully hatched bugs.

Frequently Asked Questions

Can I fish the Iris Caddis as a dry fly?+

Yes, but it is best thought of as a film-riding emerger rather than a high-floating adult pattern.

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