Food Plant: Juncus spp. (Rush), Juncus conglomeratus, J.gerardii, J.effusus, J.articulatus, J.inflexus

Egg: On the florets

Mine: August - May

Notes: The larva initially feeds inside a seed capsule. The case is made by the final instar larva and is decorated with frass and vegetable material (as shown). It also has characteristic 'gussets' - which allow for expansion. Most larvae are fully fed late September/early October and then overwinter.

Data: 19.ix.2010, Gent (Bourgoyen), Belgium

Image:© Steve Wullaert