Food Plant: Quercus (Oak)

Egg: Underside of leaf

Mine: July to October

Pupa: In a cocoon under a membrane on underside of leaf.

Notes: Early mine a narrow gallery leading to a squarish or triangular blotch). Then forms up to three successive cones by folding the lobe of a leaf downwards). The larva is shown. This species cannot be told from Caloptilia robustella without breeding or examining the pupae

Data: ex mine 16.viii.2012, Hardcastle Crags, Calderdale, W.Yorkshire, VC 63

Image:© Charlie Streets