Ypsolopha ustella

Alternative names
Variable Smudge

Wingspan 15 to 20 mm. Exhibiting numerous colour forms, this moth is easy to confuse with some of the other members of the Ypsolopha genus. However it can often be distinguished by the narrower forewings.

Identification difficulty

Well wooded areas containing Oak.

When to see it

One of few species which can be found on the wing during the winter period.

Life History

In common with several of its close relatives, the foodplant is Oak. It overwinters as an adult.

UK Status

Widespread in Britain. In the Butterfly Conservation’s Microlepidoptera Report 2011 this species was classified as common.

VC55 Status

Occasional or little recorded in Leicestershire & Rutland. L&R Moth Group status = C (very scarce resident or rare migrant).

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Leicestershire & Rutland Map


Yellow squares = NBN records (all known data)
Coloured circles = NatureSpot records: 2020+ | 2015-2019 | pre-2015

UK Map