Prochoreutis sestediana, also knowns as the silver-dot metal-mark is a moth of the family Choreutidae found in Asia and Europe. It was first described by Johan Christian Fabricius in 1776 from a specimen found in Kiel, Germany.[1]
The wingspan is 9–12 mm and the forewings have silver dusting which expands over more than half of the forewing. The fore wings are rather wedge-shaped, with the tip obliquely truncate, brownish; the disc irrorated with minute coppery scales. The costa are dotted with white, the fringe is white, in front and behind dusky. The hind wings are ashy-brown, with an abbreviated whitish striga. There are two generations per year, adults are on wing in May and from July to August. They fly during the day.[2] [3]
The larvae initially mine the leaves of common skullcap (Scutellaria galericulata) and lesser skullcap (Scutellaria minor), later living in a silken web and feeding externally on the leaves.[3] [4]
It is found in most of Europe, India, China (Ningxia, Shaanxi), Sri Lanka, Nepal, Russia (Primorskiy kray, Ural, Evropeyskaya chast’, Kavkaz), Japan (Hokkaido, Shikoku), Asia Minor, Zakavkazye, Syria and the Oriental region.[5]