Yorkshire Status: Local resident.

Changes in distribution of moths is sometimes thought of being just a modern phenomenon due to climatic change, but distributions have ebbed and flowed for a long time. Angle-striped Sallow is a good example. In 1904 Porritt wrote "another species which is rapidly expanding its range and becoming more abundant. Thirty years ago in Britain, almost confined to Sherwood Forest", and in 1907 "quite plentiful in the south and south-west as far north as York. It is certainly found a lot further north than York now. It has a curious distribution in England, records extending in wide band from north-east Yorkshire, south and east through the Midlands to the Welsh Marches. It also has a separated population in Scotland.

This is a birch-feeding moth of old birch woodland and heathland, however larvae have been seen on aspen in Yorkshire on several occasions. Our population is healthy and records may have increased a little in recent years. It is usually seen in small numbers, however several sites have reported double figures, particularly Wykeham Causeway. The maximum count is 40 at Pilmoor Carr on 12/8/1968. It is fairly distinctive, however worn specimens could be mistaken for other Sallows, especially Orange Sallow.

Sutton & Beaumont, 1989: Recorded both from low-lying heaths and from higher areas where there is mature birch woodland. Central and eastern Yorkshire represents the northern part of the range in England of this distinctly Midlands species. It also occurs in Scotland.

	Retained Specimen / Photograph will be Required.

Recorded in 84 (42%) of 200 10k Squares. First Recorded in 1875. Last Recorded in 2023. Additional Stats

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