Also called 'Disco Tom' after the Fall Caddis it imitates and the 'Tom Thumb' it is derived from.This fly is based on an old, traditional Canadian pattern used for imitating the travelling sedge on interior lakes, the Tom Thumb. By using a burnt orange body and a larger size we do a good job of imitating the October Caddis. While Steelhead are known not to eat they seem to remember the October Caddis from their youth because they are eager to dine upon October Tom.