Limnephilus lunatus Curtis, 1834
FW length 10-15 mm.
A distinctive caddisfly with narrow transparent wings. It has a pale crescent moon on the outer edge of the forewings which is bordered by a dark line. This marking distinguishes it from similar species and it is where the caddisfly gets its scientific name.
The larva lives in a case made from leaf debris, sand grains, gravel and other materials. The adults fly May to November. Found in all types of freshwater environments. Common and widespread.
Identification of species reconfirmed by an expert at iRecord.