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 (as shown). Tends to favour young seedlings and saplings.

Data: 27.vi.2003, Fleet, Hants,VC12

Image:© Rob Edmunds