Euzophera pinguis

Alternative names
Ash-bark Knot-horn

Wingspan 23-28 mm. The diagnostic zigzag lines and bands of dark and pale colour make this species easy to identify.

Identification difficulty

Woodland and hedgerows containing Ash.

When to see it

The adults are on the wing in July and August and are attracted to light after dark.

Life History

The larvae burrow into the bark of Ash trees and can eventually kill the tree if present in numbers.

UK Status

Occurring mainly in the southern half of Britain where it can be frequent. In the Butterfly Conservation’s Microlepidoptera Report 2011 this species was classified as common.

VC55 Status

Fairly common in Leicestershire and Rutland. L&R Moth Group status = A (common and resident)

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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