Wingspan c.14 mm.
A scarce and very local species, only discovered in Britain in 1983 where it was found on the coast in south Devon. It is now known to occur in a few localities eastwards to Hampshire on sparsely vegetated coastline.
There are two generations, moths on the wing in June and July and again in August and September.
The foodplant is colt's-foot (Tussilago), and the larva mines the leaves creating an irregular blotch.