Morley’s Final Catalogue: Abundant among rushes with us. Everywhere (Ctw): Blakenham, Leiston, Fritton, Monks Soham, Thetford, &c.
Recent Status: A common species somewhat under-recorded owing to identification constraints.
Life Style: A single brooded species that comes to light. It can be found from May till July. The larvae feed on seeds of Juncus species. The larvae hibernate fully fed in the larval case and pupate in spring.
Identification: A small species of Coleophora of a variable pale colour and a paler costal streak from the base. There may sometimes be paler streaks terminally. It can be identified by genitalia dissection. The larvae feed inside Juncus seeds and make a case only for the final two instars. The silken case has longitudinal ridges and is covered by particles of vegetable, mineral or frass. More Info
Determination by Genitalia Examination (gen. det.) Required
Case: A good quality photo or specimen of the case and plant/pabulum is required.
Recorded in 8 (14%) of 58 10k Squares. First Recorded in 1987. Last Recorded in 2019. Additional Stats