common but local species in Belgium, mainly known from the southern provinces.
larva makes a leafmine usually starting close to a rib of Rosa and sometimes also on Sanguisorba. It
pupates in a cocoon, generally spun on the surface
of a leaf or a leaf-stalk.
adults fly in two generations a year; during May and August.
mine: a long, sinuous gallery, frequently crossing over. The
initially gallery is narrow and completely filled with greenish grey
frass, later it widens and the frass is more variable now and black in
colour, always leaving broad clear margins.
Namur, Ciergnon, 25 November 2006.
mine on Rosa
(Photo © Chris Steeman)