Morley’s Final Catalogue: Rare and local everywhere in Britain. Hacheston CHkr); West Stow (Wrt); Brandon (Wrn). Not observed here since 1890 till taken on oak-trunk in Bentley Woods on 24 March 1934 (Mly, Trans, ii, p. clii) and bred thence in 1934-5 (Whit).
Recent Status: Rare in Suffolk, possibly under-recorded.
Life Style: The moth is single brooded flying during in March, April and May. They fly by day and come to light. The larvae feed as inquilines in ‘oak-apple’ galls, feeding on the spongy material. They pupate in a cocoon in a variety of locations.
Identification: This is one of the earliest of the Olethreutinae to appear in Spring. The moth has noticeably elongate forewings and white, dark bordered hindwings. The forewings are dark with a complex patterning. The dorsal blotch is obscure but marked by the basal edge. The timing and appearance make confusion species unlikely.
Recorded in 10 (17%) of 58 10k Squares.
First Recorded in 1934.
Last Recorded in 2021.