The wingspan is 7–9 mm. The forewings are fuscous or ochreous, in the female more whitish towards base; a pointed white median streak from base to middle, edged with dark fuscous above; four costal and three dorsal posterior shining white wedge-shaped spots, edged anteriorly and first costal posteriorly with dark fuscous, first dorsal broad, before first costal; a round black apical dot; an ill-defined dark hook in apical cilia. Hindwings are grey. The larva is greenish-white; dorsal line green; head pale brown [2]
There are two generations per year with adults on wing in May and again in August.[3]
^Meyrick, E., 1895 A Handbook of British Lepidoptera MacMillan, London pdf This article incorporates text from this source, which is in the public domain. Keys and description