Food Plant: Betula (Birch)

Egg: Usually underside of leaf

Mine: July - October

Notes: The frass is brown and in arcs, with narrow clear margins (unlike S.continuella where the green frass completely fills the gallery). The larva is yellow, brown head, and dark ventral spots. 

Data: 27.ix.2005, Fleet, Hants, VC12

Image:© Rob Edmunds