Food Plant: Salix spp. (Willow)

Mine: Summer and Autumn

Pupa: In the mine in a large transparent cocoon

Notes:  Forms a large blotch mine, with little frass. Ventral view of larva illustrated. Note short stubby feet, which distinguishes it from the other salix-feeding sawfly-  Messa wuestneii

Image:© Rob Edmunds

Data: 11.x.04, Fleet, Hants, VC12