Last modified: April 10, 2021, 2:12 p.m.
A very local and rare species in Belgium. Formerly only recorded from BR but during the last decennia also found in several localities in Flanders.
Head white; forewing ground colour silvery white, a little darker with yellowish hue in the apical area; five ochreous to brown costal striae of which the second one is prolonged to the dorsum, thus forming a narrow transversal band; a black spot in the apical area from which two dark brown hooks depart into the cilia, forming a horizontal "V".
A very long, rather broad, winding corridor on the upperside of a leaf; underside mines occur regularly. The mine never crosses itself. A central continuous dark brown and sharply defined frassline, distinguising this species from Phyllocnistis xenia.
See also gracillariidae.net and bladmineerders.be.
No real cocoon, just a flimsy spinning.
The egg is mainly oviposited on the upperside of a leaf, but underside mines occur not infrequently.
Pupation under a silken membrane at the end of the mine under a folded leaf margin.
Adults are active at dusk. The species hibernates in the adult stage.
Two generations a year: June–July and from August, hibernating till May.
Forest edges, open places in forests; parks and public gardens.