Food Plant: Quercus (Oak)

Egg: Underside of leaf

Mine: June - July, September - November

Notes: First generation, short gallery, frass in thick line. Second generation, longer gallery, frass in narrower line. The larva is a whitish-yellow and has dark prothoracic sclerites (as shown - which help distinguish it from S.roborella, with a pale head only). The mine shown is on Quercus frainetto (Hungarian Oak).

Data: 10.x.2004, Bookham Common, Surrey, VC17, John Langmaid

Image:© Ian Thirlwell