Geometridae

70.267 Great Oak Beauty Hypomecis roboraria ([Denis & Schiffermüller], 1775)

Notable B

Similar species: Pale Oak Beauty Hypomecis punctinalis is on average smaller (22 to 26mm), has an open central spot on the hindwing, has a pale area rather than dark bars on the underside of the wing tip and has narrower feathered antennae.

Forewing: 21 to 32mm

Habitats: Mainly ancient woodland with mature oaks.

Habits: The moth can sometimes be found during the day at rest on the trunks and branches of oaks. It comes to light and occasionally sugar.

Foodplant: The larva feeds on Pedunculate Oak. It pupates just below the soil surface.

On the European mainland it has also been recorded feeding on Hornbeam, Beech, birches and willows.