Umpqua Mercer's Micro Mayfly Copper Bead Fly

Overview

Designed by Umpqua signature tyer Mike Mercer, the Micro Mayfly is one of the best-selling small mayfly nymphs, and many anglers rank it among the best small nymphs since the Pheasant Tail.

The original Olive version imitates a Baetis nymph. This copper bead version has a chunky thorax that gives it a strong mayfly-nymph profile and a little extra weight. Umpqua lists it for Baetis, PMD and Trico water, so it covers most of the small mayflies trout eat through the season.

Euro Specs

• Role: Dropper fly.

How to Fish It

• Indicator rig: fish it as the trailing fly behind a heavier nymph or worm.
• Dry-dropper: hang it 18 inches under a foam dry.
• Euro: run it on the dropper tag above a tungsten anchor.
• Tippet: 5X or 6X.

Choosing Color and Size

This listing is Brown in size 16. Brown matches many PMD and other mayfly nymphs, and size 16 fits larger Baetis and PMD nymphs.