Recent Status: A common species recorded in Suffolk.
Life Style: A single brooded species that flies at night and comes to light. It can be found from May to August. The larvae mine the leaves of Cirsium, Carduus and Arctium. They hibernate fully fed, but some may continue feeding in spring before pupating.
Identification: A pale ochreous species with paler stripes. They can be identified by genitalia dissection. The first case of the larvae is excised from a small blotch mine. They then mine the leaves from below and extend their case with silk from the sides and ventral surface. This results in longitudinal concentric striping from the initial case that remains above the oral opening. The anal opening is trivalved and the oral opening is set at 45 to 60 degrees to the long axis. More Info
Determination by Genitalia Examination (gen. det.) Required
Recorded in 11 (19%) of 58 10k Squares. First Recorded in 1987. Last Recorded in 2020. Additional Stats