Krystal Bugger Olive - Bugger. The Olive Krystal Bugger has proven itself to have incredible capabilities with a wide range of trout and salmon, including Coho, Steelhead, and Chinook. The Crystal Bugger Olive can be fished deep in still waters or fished across the current of a faster moving stream or river. This fly holds enormous potential by all levels of angler all over north america, especially in areas a such as British Columbia, Washington, or Alaska.