The Undertaker Longtail is derived from the original salmon fly pattern first tied by late Warren Duncan in 1979. ItÕs one of the most popular flies around; generally tied on doubles or trebles, though single hooks are more popular in North America. The Undertaker is considered an all-rounder fly, though it is probably most popular in summer and autumn. The Green and Red butt creates a very stark contrast to the rest of the darker colored fly, creating what many call a strike point.