Dry FliesBaetis Cripple Black Wing
The Baetis Cripple Black Wing is a specialized emerger pattern designed to imitate Blue-Winged Olive mayflies during emergence. The distinctive black EP fiber wing creates a high-visibility profile that stands out during dark, overcast conditions typical of BWO hatches. The trailing Zelon shuck and slim dubbing body complete the crippled mayfly silhouette.
Spring, Fall
Intermediate
Trout

Overview
The Baetis Cripple Black Wing was developed for the challenging conditions often present during Baetis hatches. The black wing provides superior visibility for the angler during the overcast, drizzly weather that triggers the best BWO activity. This pattern excels on technical tailwaters and spring creeks where trout become highly selective during emergences.
Pattern Characteristics
Materials
Hook: Tiemco 100 or Umpqua U001, #18-22
Thread: Uni-Thread, 8/0, olive dun (or Gordon Griffith's 14/0, olive)
Shuck: Crinkled Zelon, baetis olive (or medium dun/mayfly brown)
Body: Superfine Dubbing, grey olive
Wing: EP Fibers, black
Hackle: Dun dry fly hackle, medium or dark
Fishing Tips
Season
Most effective during spring (March-May) and fall (September-November) Baetis hatches. Peak performance on overcast, drizzly days when BWO activity is strongest.
Presentation
Present with a drag-free drift in feeding lanes. Focus on the seams and edges where crippled insects naturally collect. Long, accurate casts with minimal false casting are essential.
When to Use
Best during active BWO emergences when fish are rising steadily. Try when fish refuse standard dries and appear to be feeding on emergers in the film.
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 and where emergers accumulate.
Rigging Suggestions
Fish on 12-15 foot leader with 6X-7X tippet. The small hook sizes require fine tippet and delicate presentation. Consider fluorocarbon tippet for reduced visibility.
Visibility & Floatation
The black wing provides excellent visibility for tracking the fly in flat light conditions. Rides low in the surface film with the shuck trailing below, creating a realistic emerger profile.
