Last modified: Dec. 2, 2024, 6:46 p.m.
A very rare species in Belgium, living locally in rather wet biotopes.
Native
Wingspan 10–13 mm.
Forewings are metal green.
The antennae are blackish dark till 2/3 to the tip, beyond there they are white.
The head and plates are black. The body is dull yellowish-white.
The caterpillar makes a blackish-brown trivalved case of about 8 mm.
The mouth angle is 0°–10°, causing the case to lay almost flat on the leaf.
See also bladmineerders.be.
The caterpillar makes a lot of little distinct fleck mines.
The larvae live on the underside of a leaf.
They are fully grown at the end of May or the beginning of June.
Pupation takes place on a stem near ground level.
The adults fly in one generation a year from late May till early July, sometimes even till the end of August.