Food Plant: Prunus spinosa (Blackthorn) and occasionally Prunus japonica (dwarf flowering cherry), Prunus domestica ssp. institia (Damson), Prunus cerasifera, Malus domestica (Apple) spp. Crategus monogyna (Hawthorn)

Egg: under the leaf cuticle

Mine: July-October

Notes: Forms blotch mines from an initial gallery. Frass is extruded from the mine as shown (lower and upper leaf (top;bottom photo)).

Data: 12.ix.2020, Downham Market, Norfolk, VC28

Image:© Rob Edmunds