To become a more efficient angler during the caddis hatches, one must understand the caddisfly and the different stages of its life cycle.

Trichoptera means "Hair Wing". More than 200 species of caddisflies have been found in Montana waters. The adults are often called "sedges" and sometimes "moths" by the unknowing. The adults fly in a rapid and erratic manner. The sizes can vary from 8*24. The basic colors are olive, gray, tan, brown and blackish. The adults live on the average of four weeks and tend to be crepuscular or nocturnal in nature. There are three ways that the caddis will lay their eggs: