In addition, they eat mollusks and dragonfly, caddis and mayfly larvae. It is considered a general imitation of an adult mayfly, flying caddis or midge. Insects of the wetlands in this region include caddis flies, mayflies and black flies. The Elk Hair Caddis is a dry fly commonly used for trout fishing. The Elk Hair Caddis is not limited to trout fishing. An optional aspect of the Elk Hair Caddis for steelhead would be a flash. When he began the project, he only provided the caddis larvae with gold flakes. The Elk Hair Caddis was created by Pennsylvania fly tyer Al Troth in 1957. The endemic arthropod species include a caddis fly, spider "Xysticus alpicola" and a springtail. John Gierach explains the materials he uses to create the original Elk Hair Caddis. Dawkins cited as examples caddis houses and beaver dams. The land caddis, "Enoicyla pusilla", lives in the damp litter of the woodland floor. He was replaced as captain by Paul Caddis in February 2019. Caddis was sold to English League One club Swindon Town in August 2010. Swindon defender Paul Caddis moved in the other direction, also on loan for the season.