Morley’s Final Catalogue: By no means rare. Felixstow in 1903 (Gibbs, EMM. 1904, 80); at Monks Soham light in July 1920-35 (Morley); Aldeburgh by Ctw (EMM. 1892, 254); Lowestoft in August (Ent. 1922, 258); three at Bungay in 1899 (Mn); Fritton at light (D). A dark form bred at Timworth in 1911 (Nurse); Brandon (Barrett).

Recent Status: The commonest species of Acrobasis in Britain and in Suffolk.

Life Style: A single brooded species flying during summer and coming to light. The green larvae with two dark red stripes feed on Hawthorn, preferring the flowers, berries and young leaves. They have also been found on Sorbus species and Blackthorn. They hibernate as young larvae and pupate in a cocoon.

Identification: Acrobasis advenella, is similar to A. suavella. Both have a sub-basal line and pre median line that enclose an area on the dorsal half of the forewing. This is more sharply defined in A. advenella where the white sub-basal line is sharply defined. The red scales, mixed with black and white, enclosed by this area cover the basal area, thorax and head of A. advenella such that the head is red. It is grey in A. suavella. Of the two small black discal spots that closer to the costa is also closer to the wing base. This is not so in A. suavella.

Recorded in 51 (88%) of 58 10k Squares. First Recorded in 1899. Last Recorded in 2023. Additional Stats

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