Geometridae

70.253 Spring Usher Agriopis leucophaearia ([Denis & Schiffermüller], 1775)

Common

Similar species: This moth has a semi-circular inner cross-line and an outer cross-line that is deeply indented twice then runs outward to the trailing edge. Please note that some specimens have a dark, thickened cross-line at the leading edge that makes the shape hard to determine. The female is long scaled (but not hairy) with no noticeable wings and two large dots on the first two abdominal segments. Dotted Border Agriopis marginaria has an almost straight inner cross line and an outer cross-line that is indented once then runs only slightly outwards to the trailing edge. The flightless female has quite large wings with two dark bars across them and a pale outer area that makes identification easier. Mottled Umber Erannis defoliaria has an indented inner cross-line and an outer cross-line that is deeply indented once with another slight indentation before running outward to the trailing edge.

Forewing: 14 to 17mm

Habitats: Mature deciduous woodland, parkland, hedgerows with mature oaks and gardens.

Habits: The male comes to light just after dusk. The female can be found on tree trunks about an hour after dark or at the base of trunks early in the morning.

Foodplant: The larva feeds on Pedunculate Oak or Sessile Oak and possibly apple. It pupates in the soil.

On the European mainland it has also been recorded feeding on Aspen and Downy Oak.