Lepidostoma vernale is a Wisconsin Special Concern lepidostomatid caddisfly found in aquatic habitats. It is a member of the Lepidostomatidae family, the larvae of which typically reside in slow-moving areas of cool, flowing water. Many species build their cases from square chunks of bark and leaves. Larvae are 7-13mm long. Caddisflies are in the order Trichoptera and are the architects of the aquatic insect world. Larvae construct intricate nets or complex cases out of sticks, leaves, sand, and gravel that are held together by 'silk' and are unique to the species. In most cases, the larvae live approximately one year, then pupate and emerge as moth-like adults that only live for one to two weeks, although some species can last up to two months. They are good indicators of water quality and an important food source for fish.
