BH Girdle Bug - Bead Head The Rubber Legs that the Girdle Bug Portray cause it to really jig and dance beneath the surface of the water. This life like presentation is what will drive Trout and other warm water species of fish such as Small Mouth Bass crazy. The Beadhead Girdle bug is popularly fished in a dead drift with the occasional light twitch to further draw the attention of any out lying fish. This is a very popular fly on Brown Trout Rivers such as the Grand River in Ontario.