Yorkshire Status: Scarce and local resident.

This little species was first found in Yorkshire on Thorne Moors in 1962. It remained elusive and confined to the south-east of the county until the turn of the century, since when the distribution has increased. It was not seen in VC64 until 2001, VC65 in 2003 and VC62 in 2010. It has not expanded further north than Yorkshire. Numbers continue to slowly expand, though it is usually seen in small numbers. At some sites in the south-east of Yorkshire it can be commoner, the maximum being 23 at Skerne Wetlands on 24/6/2021. It is a moth of damp places with willows. Do not confuse it with the rather similar-looking Green Oak Tortrix - Tortrix viridana. The white leading edge to the wing and the white hindwing are helpful pointers, and the resting position is different, with the wings held up at an angle as opposed to the flat position of Green Oak Tortrix.

Sutton & Beaumont, 1989: This uncommon and very local species is still present at its only formerly known site at Thorne Moors (YNU, 1970). It has now also been recorded from several other localities in the south of the County.

Recorded in 55 (28%) of 200 10k Squares. First Recorded in 1962. Last Recorded in 2023. Additional Stats

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