Egg: Underside of leaf
Mine: July - August
Notes: A narrow mine almost filled with black frass, usually following leaf-vein.
The cocoon is formed either on the trunk of the tree or in leaf litter (as photo) and has a ridged appearance. The pupa over winters in the cocoon.
This cocoon was found at the base of a small-leaved lime tree and had lost its cap exposing the pupa.
Images: © Rob Edmunds
Data: 28.iii.2005, Fleet, Hants, VC12