Above: this quilled parachute pattern that I tie is simple and very effective (photos by Clint Bova) During the summer months our terrestrial fly boxes are stocked with hopper patterns, ants, beetles, spiders, and crane flies. A much overlooked morsel in the trouts diet are black Flies and they can be found throughout the United States and around the world . After fishing over the years in Canada I quickly came to realize how much I hated these things. They can literally bite through layers of clothing and leave you cussing for hours on end. If you cant beat em, put em on the end of your line. I have developed a pattern that I use when these water born nasties hatch during the summer. The Black Fly is from the Order of Diptera and hatch from running water. It is there that the larvae attaches to submerged rocks using silk holdfasts and threads to move or hold themselves to a structure. Eventually they pupate under water and emerge in a bubble of oxygen as an air born adu...