Bubble-Back Soft Hackle (generalized recipe)
Hook - Mustad R50-94840 (Size 12 - 18)
Thread - 8/0 UNI-Thread (color of your choice)
Hackle - Hungarian Partridge, Speckled Indian Hen, etc. (whatever makes you happy)
Bubble Back - Antron Yarn, Z-Lon, etc. (color to compliment body)
Body - Peacock Herl, Muskrat Dubbing Blend, etc. (get creative)
Spectrumized Muskrat & Speckled Hen Bubble-Back
Peacock & Partridge Bubble-Back (Golden)
Royal Peacock & Partridge Bubble-Back
Olive Muskrat & Partridge Bubble-Back
I find this fly much easier to tye than the sparkle caddis pattern I posted yesterday. I like being able to see the body of the fly, and yet having the antron bubble just over the back of the fly.
I think the antron could be treated with a wee drop of floatant to make the fly hang in the surface film. Left untreated, I think the fly will sink slowly below the surface. The sparkle of the antron should catch the light and emulate an air bubble.