Coleophora tamesis
Coleophora tamesis is a moth of the family Coleophoridae found in Asia and Europe.
Description
The wingspan is 11–14 mm. Wingspan 11–14 mm. Head and thorax greyish-brown. Labial palps light grey. Forewings yellowish-brown with a yellowish-white line at the costa from base to tip. In the middle of the forewing yellow-white longitudinal lines. Hindwings grey.Adults are on wing from mid-June to August.
The larvae feed on the generative organs of jointed rush and saltmarsh rush, forming a case made from silk and the remains of the seed capsule. It is 6–7 mm in length and the mouth angle is 15–20°. The case is similar to Coleophora taeniipennella which also uses the same host plants. The larvae overwinter with pupation taking place in May and June.