rare species in Belgium, but probably overlooked in many places.
young larva makes a circular blotch mine without an initial gallery on the upper side of a leaf of Coronilla varia and on different species of Dorycnium and Lotus.
The abundant black frass lie in indistinct arcs or spirals and are
attached to the upper cuticle forming a dark central fleck. Pupation in
a white oval silken cocoon, generally spun beneath a leaf of the food
adults fly normally in one generation a year during May. When
conditions are favourable a second generation occurs during August.
Namur, Gembloux, 03 August 2010.
mine on Lotus peduncucatus
(Photo © Jean-Yves Baugnée)