Food Plant: Populus canescens (Grey Poplar)  

Egg: Laid on the petiole.

Mine: July - October

Notes: A gall in petiole, later mine in leaf-blade, in “green island” -seen here at the base of the leaf, on the left. Note also the twin lines of frass edging the mine.

Data: 03.xi.2009, Stotfold, Bedfordshire, VC30

Image:© Andy Banthorpe