Last modified: March 26, 2021, 2:25 p.m.
A rare species in Belgium, only at the coast and big rivers in the north of the country. It can be quite common in suitable habitats.
See also bladmineerders.be.
The larva feeds in the fleshy spikes and seeds of the host plant, giving no evidence of its presence. When the larva is in its last instar, it makes a case.
During autumn the case drops to the mud surface, the larva leaves the case and digging into the mud were it makes a silk-lined tube, overwintering fully-fed.
The adults come to light.
The adults fly in one generation a year: from mid July till the beginning of August.
The larva feeds monophagously on Salicornia.
Only where the host plants are to be found.