Wingspan 16-23 mm. The males of this longhorn moth have extremely long antennae; the females much shorter.

Deciduous, often damp, woodland and around well wooded hedgerows and lanes.

In May and June, the males can often be seen in groups, 'dancing' in the sunshine.

The larvae feed on leaf litter on the ground.

It is quite common over much of England and Wales, more local in Ireland. In the Butterfly Conservation’s Microlepidoptera Report 2011 this species was classified as common.

Fairly frequent but not common in Leicestershire and Rutland. L&R Moth Group status = B (scarce resident or restricted distribution or regular migrant)