Last modified: April 28, 2020, 5:47 p.m.
A very rare and local species in Belgium, mainly observed at the northwestern part of the coast and in the south.
The adults fly in two generations a year: from mid May till July and again from August till early October. They are active in the sunshine and later come sparsely to light.
The larvae live in a slight web under the leaves and feed on herbs growing in the wild, especially Thymus, Origanum vulgare, Mentha and Galium. They pupate in a tough whitish cocoon among debris or in the soil.