291 Caloptilia hemidactylella
([Denis & Schiffermüller], 1775)Wingspan c.13 mm.
A very rare species in Britain, which has not been recorded reliably since the 1950s where it was noted in Gloucestershire. It is also believed to have been present in Northamptonshire in the 19th century. A number of supposed records elsewhere are now believed to be misidentifications.
The larva forms a cone on a leaf of sycamore (Acer pseudoplatanus) although abroad it is found on other maples including field maple (A. campestre).
The adult flies from September and overwinters.