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Bucculatrix demaryella (Duponchel, 1840)

A rare and local species in Belgium.

The young larva mines the leaf of Betula, Corylus avellana and Castanea sativa. Initialy the mine is a narrow gallery, often contorted and later following a vein, the final chamber is often turned away at right angles, the frass fills the gallery. Later the larva eats out windows from either side, leaving the veinlets. Pupates in a greyish ochreous cocoon spun amongst debris.   

The adults fly in one generation a year; during May and early June. They come to light. 

Belgium, Limburg, Oostham, 30 July 2008.
(Photo © Chris Snyers)
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Comments to Willy De Prins or Chris Steeman
© Flemish Entomological Society