Umpqua Mercer's Micro Mayfly Tungsten Fly

Overview

Designed by Umpqua signature tyer Mike Mercer, the Micro Mayfly is one of the best-selling small mayfly nymphs, and this tungsten version sinks faster. Olive is the original color, built to imitate a Baetis nymph.

Baetis nymphs are in the drift every month of the year and are one of the most important trout foods in western rivers. A small, slim nymph with a tungsten bead gets into the feeding zone quickly without extra shot, which makes it a strong choice for dry-dropper rigs and Euro setups as well as indicator fishing.

Euro Specs

• Role: Dropper, or a light point fly in shallow riffles.

How to Fish It

• Dry-dropper: hang it under a foam dry in riffles and pocket water.
• Euro or tight-line: fish it on the dropper above a heavier anchor.
• Indicator rig: trail it behind a worm or larger nymph.
• Tippet: 6X fluorocarbon.

Choosing Color and Size

This listing is Olive, the classic Baetis color. Size 16 matches larger spring and fall Baetis and carries more weight. Size 18 matches smaller Baetis and suits clear, slow water.