Norfolk status Waste ground, poor grassland and arable fields with root crops where foodplant found.
Distinguished from all otherwise similar species, by the unusual sclerotised plate on the tip of the abdomen containing small spines, which it is believed is used to help break out of the pupal cocoon.
[MBGBI vol3 p331]
Verification Grade Comment: Adult: If a photo, 1st abdominal segment feature must be clearly visible, otherwise 4
Retained Specimen / Photograph will be Required.
Case: A good quality photo or specimen of the case and plant/pabulum is required.
Recorded in 16 (23%) of 69 10k Squares. First Recorded in 1986. Last Recorded in 2019. Additional Stats