Food Plant: Quercus (Oak)

Egg: underside of leaf

Mine: July, September - October

Notes: The mine is greater than 20mm long, lower epidermis with one strong crease often dividing in Y-shape at end near leaf-margin. There can be several mines on a leaf. Tends to favour young seedlings and saplings. The cremaster has four curved spines - the outer of which are more sturdy (as shown).

Data: 06.vii.2004, Fleet, Hants,VC12 (top photo). Amsterdam, The Netherlands (bottom photo)

Image:© Rob Edmunds (top photo), Willem Ellis (bottom photo)