Limnephilus is a genus of caddisflies in the family Limnephilidae.

[1] Several species of Limnephilus are endangered, including Limnephilus perpusillus, Limnephilus parvulus and Limnephilus janus being listed as a species of special concern in Wisconsin,[2][3][4] and Limnephilus pallens being listed as a species of special concern in Michigan.

Some of its species do well enough in spring creeks and slow pools to be important to trout there.

[6] Some Limnephilus species are multibrooded.

[7] It is fairly frequent in Leicestershire and Rutland, and common and widespread over much of Britain.