Recent Status: A common species probably under-recorded in Suffolk owing to identification constraints.
Life Style: A single brooded species that flies at night and comes to light. They can be found during June, July and August. The larvae mine leaves of Artemesia vulgaris, A. absinthium, Achillea millifolium, Leucanthemum and Tanecetum vulgare. They hibernate and continue feeding in spring prior to pupation in the larval case.
Identification: The moth is a light ochre white striped species that can be identified by genitalia dissection. The larvae initially mine a short gallery and then excise part of the leaf for their first case. They continue to feed from this case and extend it with silk from the ventral and lateral sides resulting in a case with concentric longitudinal rings based around the original leaf case that remains above the oral opening. The oral opening is set at around 45 to 60 degrees in the final case and the anal end is trivalved. The larval case is most likely to be confused with C. gardesanella that uses similar foodplants however the appearance of the larvae are different. The larva of C. trochilella is shown in the link. C. gardesanella is not recorded in Suffolk but occurs in Essex. More Info
Determination by Genitalia Examination (gen. det.) Required
Case: A good quality photo or specimen of the case and plant/pabulum and gen. det. of bred moth is
Recorded in 6 (10%) of 58 10k Squares. First Recorded in 1965. Last Recorded in 2019. Additional Stats