This fly most likely dates back to the 1850s, when it came out of the vise of Martyn Flynn of Worcester, England. Оriginally is intended as a dry fly for grayling. The initial name is Worcestershire Gem, but it is known Red Tag. Very appropriate name since the prevailing red tail or tag is one of the main features of the fly. This is a very general option dry fly, perhaps imitating a small beetle or some other nondescript flying insects. Red Tag is unlike anything that trout eat normally, but obviously has the same seductive spell of dry fly.