What is "limnephilus"

Limnephilus is a genus of caddisflies in the family Limnephilidae. There are over 180 species of Limnephilus, described between 1824 and 1999.

Several species of Limnephilus are endangered, including Limnephilus perpusillus, Limnephilus parvulus and Limnephilus janus being listed as a species of special concern in Wisconsin, and Limnephilus pallens being listed as a species of special concern in Michigan.