This pattern is tied on a size 12 hook and is a large Caddis imitation. The wing and tail is tied using bleached deer hair, the body is yellow silk with a brown cock hackle palmered down it and the abdomen is white cock hackle with a red head. This combination of materials results in a fly that is easy to see, even from a distance, very difficult to sink and very attractive to trout both in lakes and rivers. The fly should be cast to rising fish but it also can be used to pull up to the surface reluctant risers. The most productive time of year for this fly is May to September and should be cast on the water during the late afternoon and on into the evening.