I first saw this little bug over on Midgeman's old blog and being the simple little thing it is, I fell in love with it. After tying and fishing a few of these things, I knew that they would always have a place in my box.
Tying the Colorado Caddis from Juan Ramirez on Vimeo.
The Colorado Caddis, tied in either green or cream, will cover most of your caddis species during the hatch. This little bug will work well when there is not a hatch too. Tie it heavy or light, It will work well for you.