Pheasant tail nymph variant
The fly that Frank sawyer created was not representational of any particular mayfly nymph but rather is suggestive of the broad range of nymphs that he came across in his duties and his recreational fishing. I tie olive, brown and claret versions of this fly in a couple of sizes. These pheasant tail variants make up around 20% of the content of my nymph fly box and account for probably 80% of the trout I catch on nymphs.