Last modified: April 23, 2019, 12:44 p.m.
An extremely rare and local species in Belgium, only mentioned once from the country.
Forewing ground colour uniformously dark brown, without any pattern.
Yellowish green; head capsule, first thoracical segment and last abdominal segment blackish.
A rather large, greenish or yellowish blotch mine on the upperside of a leaf. In the last stage, the mine turns brownish. The inside of the mine is loosely lined with spinning, though not contracting the mine very much like in the other Coptotriche species. The mine of this species can be distinguished from the related Coptotriche marginea, also living on Rubus, by its yellowish-brown colour, while the mine of C. marginea is white. Frass is ejected through a small whole at the underside of the leaf.
See also bladmineerders.be
No cocoon is formed.
The eggs are oviposited on the upperside of a leaf.
The species hibernates in the larval stage, inside the mine, between leaf litter or still attached to the hoast plant. Pupation in spring in the larval feeding place, without making a cocoon.
One generation a year: May–June.