Food Plant: Quercus (Oak)

Mine: July, September - October

Notes: The mine is medium (>10mm) or large, single crease in lower epidermis. The frass surrounds cocoon in summer, but in U-shaped lining in autumn. The cremaster is shown above. It has two oter thin hooked spines. Note also the spines on the dorsal surface which project rearwards.

Data: Top photo: 12.xi.2004, Amsterdam, The Netherlands: Bottom photo: 29.01.2005, Fleet, Hants, VC12

Imagse:© Top photo: Willem Ellis; Bottom photo: Rob Edmunds