This fly was invented by a fly tier who fished in a One Fly competition in Montana. In his first year of competing, in this two day event, his fly fell apart. The next year he won the same event with this fly. It is a disaster to look at, but is indestructible. It represents a spider, an ant, a cricket and any other black buggy thing on the water. Has even been used to catch Dragonfly feeders.