Brian Chan, a fisheries biologist in British Columbia designed this pattern to mimic chironomids. His good friend and fellow stillwater fly fisher Phil Rowley shows how to tie The Chromie in this video. I recommend listening closely while Phil ties, because he explains this pattern in great detail.
If you’re wondering what a chironomid is and why this pattern is important, Brian Chan has an article with photos that go perfectly with this video over on his website. He also explains how to fish this pattern in the article.
Be sure to visit Phil Rowley’s website too. Phil is a very good writer and has many helpful fly fishing articles available on his site.