Wingspan 10-13 mm. The moths fly low over the foodplants in sunshine and have conspicuously white hindwings.
Woodland, downland and scrub.
A springtime species, flying in April and May in the north, whilst in the south a later second generation also occurs.
The larvae feed on Bitter Vetch and Bush Vetch, spinning the leaves together or living inside the seed pods.
It is a reasonably common species over much of the British Isles. In the Butterfly Conservation’s Microlepidoptera Report 2011 this species was classified as common.
Fairly frequent but not common in Leicestershire & Rutland. L&R Moth Group status = B (scarce resident or restricted distribution or regular migrant)
Leicestershire & Rutland Map
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Yellow squares = NBN records (all known data)
Coloured circles = NatureSpot records: 2020+ | 2015-2019 | pre-2015