Last modified: June 17, 2020, 3:02 p.m.
A common species throughout Belgium, recorded from all provinces.
The species hibernates in the larval stage. The caterpillar lives beneath a white silken web on the underside of a leaf from September to June. It develops slowly before and during hibernation, but much faster in early spring.
Pupation on the underside of a leaf, under a silken web, or under a rather long white silken web along a tree branch during June and July.
The adults rest during the day on the underside of leaves, preferably Quercus leaves on the lower branches. They become active during the evening and later come to light.
One long generation a year: from late June till late October.
Polyphagous. The caterpillar lives on a leaf of Acer pseudoplatanus, Betula, Castanea sativa, Cornus mas, Crataegus, Fagus sylvestris, Hypericum, Malus, Prunus, Pyrus, Quercus, Rhamnus catharticus, Rosa, Rubus, Sorbus, and Viburnum. The species has a preference for Fagus and Quercus.
Deciduous forests, preferably with many Quercus trees. Fageto-Quercetum and Querceto-Fagetum. But also in gardens, orchards etc. with a preference for xerothermic situations.