Last modified: Sept. 6, 2023, 12:56 p.m.
A common species throughout Belgium.
Forewing ground colour bright ochreous brown, darkened towards the apex. Without any distinct pattern. The ground colour of this species is usually brighter than that of the two other Tischeria species, but there is some overlap.
Yellow, with brown head capsule and greyish brown last abdominal segment.
A large, white mine on the upperside of a leaf; occasionally several mines can be found on one leaf. At the end of the development a semi-circular pupation chamber is constructed, which is visible because of the white spinning. Frass is ejected from the mine through a hole in the upper cuticula.
See also bladmineerders.be
A semi-circular pupation chamber lined with a lot of white silk inside. Pupa brown.
The egg is oviposited on the upperside of a leaf, sometimes several eggs on one leaf.
Already the earlier instars start to construct a semi-circular pupation chamber in the larval feeding place. This pupation chamber is lined with white spinning and therefore visible as a white circular spot with a light ochreous hue in the centre, in the otherwise whitish mine. The caterpillar often rests inside this pupation chamber between its feeding activity. It then lays in a bend position which can easily be observed when one holds the mine towards a light source. The species hibernates in the pupal stage.
The moths come to light.
The adults fly in May and June. During favourable years, a second generation develops of which the moths are on the wing in August.