The wingspan is 32–38 mm. The ground colour of the forewing is grey, with a middle darker band between two cross lines. The discal spot is in this band. Apical streak present. Very similar to Scotopteryx mucronata but the discal spot on the forewings lies closer to the antemedian line (inner line) than in mucronata and the hindwings are slightly darker and without markings.. See Townsend et al.[2]
The caterpillars are brightly coloured and have a brownish stripe pattern.
Adults are on wing from June to August.[3]
The larvae feed on Genista (including Genista anglica) and Ulex species. Larvae can be found from August to April. The species overwinters in the larval stage.[4]