Limnephilidae

Limnephilidae is a family of caddisflies, insects in the order Trichoptera. These aquatic insects are found in freshwater habitats worldwide, though they are most diverse in the Holarctic region. Larvae of Limnephilidae are known for constructing portable cases, often made from plant material, stones, or sand, which they carry with them as they move. The specific materials used and the style of construction can vary between species and even within different instars of the same species.

The larvae are typically herbivorous, feeding on algae, aquatic plants, and detritus. Some species may also be omnivorous or predatory. They play an important role in freshwater ecosystems as primary consumers and as a food source for fish and other aquatic animals. Adult limnephilids are terrestrial and typically short-lived, their primary function being reproduction. They are often nocturnal or crepuscular, and their diet, if they feed at all, usually consists of nectar or honeydew. The family is large and diverse, with many genera and species, and their ecological significance is considerable in freshwater environments.