Dry FliesUpright Baetis Dun
The Upright Baetis Dun is a refined dry fly pattern designed to imitate a fully emerged Blue-Winged Olive dun. The upright EP Trigger Point wing and Coq de Leon tail create a realistic mayfly profile, while the olive brown Ice Dub thorax adds flash and attraction. Tied on a barbless hook for easy releases.
Spring, Fall
Intermediate
Trout

Overview
The Upright Baetis Dun was developed at Blue Ribbon Flies to complement their emerger patterns when fish prefer fully emerged duns. The EP Trigger Point wing material creates a subtle, translucent wing that matches the appearance of Baetis wings. The barbless Tiemco 206BL hook allows for quick, easy releases.
Pattern Characteristics
Materials
Hook: Tiemco 206BL, #20
Thread: Uni-Thread, 8/0, olive dun
Tail: Coq de Leon, dun
Thorax: Ice Dub, olive brown
Wing: EP Trigger Point Fibers, BWO
Fishing Tips
Season
Most effective during spring (March-May) and fall (September-November) Baetis hatches. These are the prime seasons for BWO activity on most waters.
Presentation
Dead drift with the fly riding on top of the surface film. Focus on feeding lanes where fish are taking fully emerged duns. Accurate casts and drag-free drifts are essential.
When to Use
Best when fish are taking duns off the surface rather than emergers in the film. Look for fish rising with open mouths rather than subtle sipping rises.
Water Type
Ideal for spring creeks, tailwaters, and technical freestone water. Most effective in flat water and slow runs where fish can inspect flies closely.
Rigging Suggestions
Fish on 12-15 foot leader with 6X-7X tippet. The barbless hook requires careful fish playing but allows easy release. Keep the wing dressed with floatant.
Visibility & Floatation
The BWO Trigger Point wing provides good visibility while maintaining a realistic profile. The Ice Dub thorax adds subtle flash. Rides on top of the film like a natural dun.