Identification

The leading edge of the forewing being slightly concave is diagnostic for this geometrid.

Life cycle

One generation. It overwinters as a pupa. Larvae present June and July.

Larval foodplants

Heath Bedstraw, Hedge Bedstraw and Lady’s Bedstraw.

Habitat

Primarily restricted to calcareous and coastal slopes where bedstraws Galium, the larval foodplants, are common, but also recorded on some inland grassland.

History

First recorded in Dumfries and Galloway in VC72 at Glen Mills, Dumfries by Lennon who stated that it was ‘not common’, in VC74 in 1895 at Corsemalzie by Gordon who found it ‘scarce, taken singularly’  and for VC72 at Tynron by Duncan.