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Split Back PMD Emerger fly pattern
Emerger · #533 of 533

Split Back PMD Emerger

Split Back PMD Emerger is a subsurface Pale Morning Dun emerger with a dark split wingcase and a bright yellow bump that shows trout a PMD in the act of hatching. It supports Split Back PMD Emerger, PMD emerger nymph, and pale morning dun hatch fly searches.

Imitates: Emerging Pale Morning Dun mayflies

Quick Reference

Best Sizes
#16-18
Best Season
Late spring through summer
Best Conditions
Tailwaters, spring creeks, and riffle-to-glide transitions during PMD hatches
Water Temp
52-66°F
Recommended Tippet
5X-6X

How to Rig It

Drop it 14-20 inches behind a PMD dry or fish it as the top fly in a light two-nymph rig.

How to Present It

Dead-drift it just under the film and let it swing up at the end of the drift to imitate an emerger rising.

Why It Works

The split wingcase and yellow bump mimic the moment the dun splits its shuck, which is when trout eat PMDs most confidently.

History

Split-back emergers grew out of western tailwater fishing where trout key on the emergence stage rather than the adult dun.

Pro Tip

If trout are bulging without breaking the surface during a PMD hatch, they are eating this stage, not the dun.

Frequently Asked Questions

How do I fish a Split Back PMD Emerger?+

Fish it as a dropper behind a PMD dry and let it drift in the film, then allow a slow lift at the end of the drift.

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