Olive Comparadun
The Olive Comparadun is a hackleless mayfly dry that floats flush in the film, perfect for selective Blue Winged Olive feeders. Optimized for searches like BWO comparadun pattern, hackleless mayfly dry, and best flat-water Blue Winged Olive dry fly.
Imitates: BWO (Baetis) dun and emerging mayfly
Quick Reference
- Best Sizes
- #18-22
- Best Season
- Fall and early spring, cloudy days
- Best Conditions
- Spring creeks, tailwaters, flat pools with sipping risers
- Water Temp
- 42-58°F
- Recommended Tippet
- 6X
How to Rig It
Single dry; drop a small BWO emerger off the bend if fish refuse.
How to Present It
Dead-drift with a long leader. Mend air to avoid drag.
Why It Works
The flush deer-hair wing and lack of hackle drop the body onto the water like a real dun — picky trout reject anything propped up on hackle.
History
Al Caucci and Bob Nastasi codified the Comparadun style in 'Hatches' (1975). The olive variant became standard for BWO hatches nationwide.
Pro Tip
Carry #18, #20, and #22. If trout refuse, drop one size before changing pattern.
Frequently Asked Questions
When should I fish an Olive Comparadun?+
Anytime Baetis (BWOs) are hatching — cloudy fall and early spring days are prime, especially on flat tailwater pools.
Not sure if Olive Comparadun is right today?
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