Family: Nepticulidae 64     *     Stigmella continuella Leaf mine photographs on Birch, Betula. UK September 2011 Wingspan: 4-5mm Flight time: Two generations, May and August Food plant: Birch (Betula spp.) Mine: June-July and September-October Egg underside, often in leaf axil. A slender corridor, initially strongly contorted and causing a brown spot in the leaf. Later stages straighter, often following a vein. Corridor +/- filled with coiled, greenish frass. Similar: Stigmella sakhalinella

Stigmella continuella
Leaf mine on Birch, Betula. UK. September 2011