Scotopteryx mucronata, the lead belle, is a species of moth in the family Geometridae. It is found in most of Europe, Turkey, Ukraine, West Siberia.
The wingspan is 30–38 mm. See Townsend et al.[1]
Adults are on wing from May to June in one generation per year.[2]
The larvae feed on Ulex and Cytisus species. The species overwinters in the larval stage.