Food Plant: Sambucus spp.(Elder)

Mine: Summer and early Autumn

Notes: Forms an irregular upper surface blotch with conspicuous black frass. The above is unusual and appears to show that three mines have apparently merged to form a communal blotch - seen in more detail in the bottom photo.

Pupa: external to the mine

Data: 21.ix.2015, Bishops Stortford, Hertfordshire, VC20

Image:© Colin Plant