繁缕
The larvae feed on "Arenaria serpyllifolia", "Cerastium arvense", "Cerastium glomeratum", "Stellaria holostea" and "Stellaria media". They create a trivalved tubular, silken pale brown case of about long. It has a mouth angle of 25°-30°. The case has a double dorsal keel. Full-grown larvae can be found in May.