Widely distributed throughout the British Isles on heathland, moorland, downland and woodland margins. In Hampshire and Isle of Wight scattered across the area, but never common and in small numbers. Perhaps overlooked due to its early flight season and nondescript appearance. Wingspan 26-31 mm. Mottled veins are the best distinction from other nondescript spring geometers, such as
Early Tooth-striped Trichopteryx carpinata. Larva feeds on Lady's Bedstraw, Heath Bedstraw and Cleavers, over-wintering as a pupa.