This article and video will explain to you how to tie this pattern with a single feather for the wing.
Hook: Partridge Dry fly barbless size 18 but to suit your needs
Silk: 14/0 Sheer coloured primrose
Tails: Micro fibbetts (Clear)
Wing: Teal fibres from a single feather.
Body: As silk but treated with cobblers wax
Hackle: Good quality cock hackle light brown dun