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Half Back fly pattern
Nymph · #243 of 532

Half Back

Also known as: Half-Back

The Half Back is a buggy, dark searching nymph with peacock herl thorax and pheasant tail back, a confidence fly across western and Canadian trout water. Built for searches like Half Back nymph pattern, peacock thorax searching nymph, and best dark trout nymph for stillwater and rivers.

Imitates: Stonefly nymph, large mayfly nymph, generic dark food

Quick Reference

Best Sizes
#8-14
Best Season
Year-round
Best Conditions
Freestone rivers, stillwaters, prospecting deep runs
Water Temp
40-62°F
Recommended Tippet
4X-5X

How to Rig It

Anchor under an indicator, or single fly cast to cruising stillwater trout.

How to Present It

Dead-drift in rivers; slow strip or hang in stillwaters.

Why It Works

The peacock herl thorax is irresistible — its iridescence triggers strikes from trout that ignore drabber nymphs.

History

A western Canadian and Rocky Mountain classic, especially popular on Alberta and British Columbia trout lakes.

Pro Tip

On stillwaters, hang it 8 feet under an indicator and let the wind drift it through cruising lanes.

Frequently Asked Questions

What does a Half Back imitate?+

It's a generic nymph — suggests stoneflies, large mayflies, or damselfly nymphs depending on size and water.

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