Morley’s Final Catalogue: A local southern kind, extending northwards to only Worcester and ' Suffolk ' (Meyrick). Has occurred in Suffolk (Sttph. Illust. iv, 1835, p. 371): Taken by Mr. Sparshall in some abundance upon undergrowth upon a heath near Mildenhall on 8 July 1824 (Curtis, Brit. Ent. iv, pl. clxi). One on Mullein leaf on open heath of Wangford warren, Lakenheath, at 3 p.m. on 26 July 1937 (Mly).
Recent Status: Occurs in Breckland.
Life Style: A single or sometimes double brooded species found from June to September. The larvae feed on Marrubium vulgare. This plant is found in Breckland but also in the south east of the county. The larvae pupate on the foodplant.
Identification: An easily recognised species. It has white wings with large suffused brown markings both on the fore and hindwings. Younger larvae feed inside buds devouring the centre and down into the stem. Older larvae feed externally on the leaves and rest on the top of the mid-vein when not feeding. More Info
Retained Specimen / Photograph will be Required.
Recorded in 3 (5%) of 58 10k Squares. First Recorded in 1824. Last Recorded in 2021. Additional Stats