Family: Geometridae Sub-family: Ennominae
Wingspan: 30-38mm. Variable. The brown form is known as f. diluta.
Flight time: May-August
Habitat: Damp woodlands, heath, carr, fens
Larval food plants: Aspen and other poplars, Sallows and other Willows
Photographs: Ballingeary, Co. Cork, SW Ireland. 2010