For this reason they are often known as northern caddisflies.

Limnephilus is a genus of caddisflies in the family Limnephilidae.

The Limnephilidae are divided among the four subfamilies listed here (with some notable genera also given).

The Limnephilidae is one of the most species-rich Trichoptera families of northern temperate regions, but only a few are known from tropical areas and the Southern Hemisphere.

Chilostigma itascae, also known as the headwaters chilostigman or Headwaters Chilostigman Caddisfly, is a species of caddisfly in the family Limnephilidae.

Stoneflies (Nemouridae, Chloroperlidae and Perlodidae families) and caddis larvae (Hydropsychidae, Polycentropidae, Rhyacophilidae and Limnephilidae families) are also present.