CH Krystal Bugger Purple - Cone Head. The Purple Krystal Bugger Conehead has become a very rapid success in the depths of your favourite trout lake, or the small side streams. The Cone Head Purple Crystal Bugger has proven itself to have incredible capabilities with a wide range of trout and salmon, including Coho, Steelhead, and Chinook. The sparkle this fly produces has demonstrated its ability to catch fish in even cloudier stretches of water.