CDC Biot Emerger

While doing some winter reading of several of my books on stream entomology I noticed the many of the nymphs shown in the photographs all seemed to have a rusty brown color. It didn’t matter what species of fly was shown, hendricksons, sulfurs, bwo’s, cahills, they all had this rusty brown color in the nymphal stage. I decided to come up with a pattern to imitate the emerging stage of the insects. What I came up with is a pattern that I call the sulfur cdc biot emerger.

John Lazar

Fly tied by John Lazar