Midge / EmergersJuju Emerger
The Juju Emerger is Charlie Craven's versatile mayfly emerger that borrows heavily from his famous Jujubaetis nymph pattern and the popular RS2 emerger. This elegant pattern features split microfibett tails for stability, a Super Hair abdomen that creates realistic segmentation, a sparsely dubbed thorax, India hen legs, and a CDC wing with a white fluoro fiber topping for visibility. The pattern can be fished as a traditional nymph or in the surface film as an emerging mayfly.
Spring, Summer, Fall
Advanced
Trout
Dec 2025
Overview
This Charlie Craven pattern from Charlie's Fly Box showcases his thoughtful approach to emerger imitations. The Juju Emerger represents just one frame of the "emergence movie" - that critical moment when a mayfly nymph transitions to its adult form. The split microfibett tails add surface area to help the fly float in the film, while the CDC wing provides buoyancy. The white fluoro fiber topping adds visibility for the angler while suggesting the emerging wing case of the natural. By altering colors and sizes, this pattern effectively imitates a host of different mayflies from Baetis to Pale Morning Duns, Sulphurs, and even Green Drakes.
Materials
Hook: Tiemco 101, #18-22
Thread: Veevus 14/0 (or Tiemco 16/0), olive
Tails: Microfibetts, brown (split)
Abdomen: Super Hair, olive and brown
Thorax: Superfine Dubbing, olive-brown
Legs: India Hen Saddle, mottled brown
Wing: CDC, natural gray
Topping: Fluoro Fiber, white
Head: Superfine Dubbing, olive-brown
Behavior & Presentation
Natural Behavior: Mayfly emergers hang vertically in the surface film as they shed their nymphal case over several minutes, trapped during this vulnerable transition. Their extended helplessness makes them prime targets for selective feeders.
Where Trout Eat It: Fish sip emergers suspended in the surface film during hatches, focusing on tail-outs and runs.
How to Fish It: Fish on conventional nymph rig in riffles where fish stack up, or in the surface film behind a visible dry fly as a dropper.
Best Water: Focus on runs, riffles, and tail-outs where mayfly emergers concentrate.
Strike Type: Watch for subtle sips in film or indicator barely moving. Strikes are delicate during selective feeding.
Fishing Strategy
Rigging Suggestions: Fish on a 9-12 foot leader tapering to 5X-6X tippet. As a dropper behind a larger dry fly, use 12-18 inches of 5X-6X tippet.
Seasonal Timing: through fall mayfly hatches. Particularly productive during Baetis hatches in spring and fall, and PMD/Sulphur hatches in summer.
Pro Tips: Adjust presentation depth and speed based on fish activity level and current conditions for best results.
Entomology
Pale morning dun emergers transition from nymph to adult in the surface film, hanging vertically as they shed their nymphal case over several minutes. This extended vulnerability period makes them prime targets for feeding fish that recognize the easy opportunity.
- Order
- Ephemeroptera
- Family
- Ephemerellidae
- Common Name
- Pale Morning Dun
- Organism Type
- insect
- Life Stage
- emerger