Eriocraniidae     ABH 2.008 B&F 12   *   Eriocrania sangii Leaf mine photographs on Birch, Betula. Wingspan: 9-14mm Season: March-April, flies in sunshine Food plant: Birch, Betula Mine: April-May. Mine starts by leaf margin then forms a blotch containing long strings of frass and a single, large grey larva. Similar: 11 Eriocrania cicatricella has 2-4 white larvae in each mine. 13 Eriocrania semipurpurella has a single whitish larva

Eriocrania sangii
Leaf mine on Birch, Betula. Canford Cliffs, Dorset. May 2013