Wingspan 18 mm. The scientific name of this distinctive moth is derived from the rhomboid-shaped brownish blotch on the forewing. At rest, the wings are closely folded at the tip, giving a tapered appearance.
Well wooded areas containing the larval foodplants.
It flies at night between late July and September, and can be attracted by light.
The larval foodplants are Birch and Hazel.
Widespread and fairly frequent in Britain. In the Butterfly Conservation's Microlepidoptera Report 2011 this species was classified as common.
Occasional in Leicestershire and Rutland. L&R Moth Group status = C (very scarce resident or rare migrant).
Leicestershire & Rutland Map
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Yellow squares = NBN records (all known data)
Coloured circles = NatureSpot records: 2020+ | 2015-2019 | pre-2015