Dry flies.
Dry Elk

Versatile, bouyant pattern, available in many colours. High visibility ensures that takes are seldom missed. Available in a range of sizes, this fly is possibly the most useful general purpose contemporary dry pattern.
Crane Fly
Autumn heralds the arrival of Crane Flies, also known as Flying Daddy Long Legs and that is when this pattern can prove deadly.
Deer Hair Caddis

Another highly versatile pattern, with even greater bouyancy characteristics than the Elk dry fly. This makes it ideal for faster runs and turbulent water where other patterns might quickly become drenched.
Adult Olive Buzzer

Really simple yet highly effective pattern, black variation also excellent.