Stigmella betulicola

Appearance

The wingspan is 3.4-4.6 mm. The head in male is ochreous yellowish, in female more orange, collar light yellowish. Antennal eyecaps yellow -whitish. Forewings shining deep purplish bronze; a shining golden -silvery fascia about 3/4 apical area beyond this deep fuscous-purple. Hindwings grey. Adults are on wing in May and again in August. There are two generations per year.

Food

The larvae feed on ''Betula'' species, including ''Betula pubescens'', ''Betula pendula'', ''Betula humilis'' and ''Betula nana''. They mine the leaves of their host. The mine is short, with frass irregular, linear. There are often several mines in a leaf. The mines are found frequently on seedlings and small plants