Last modified: May 30, 2024, 5:38 p.m.
A fairly common and scattered species throughout Belgium.
Native
Dark grey, head capsule pale brown, prothoracic and last abdominal segment darker brown.
Pupation in a silken cocoon in which frass is used.
The caterpillar constructs a loose, silken gallery under dead bark of various trees, preferably deciduous wood.
Pupation takes place between April and June in a silken cocoon covered with frass in the larval feeding place.
The adults are active in early morning sunshine, they hide during the rest of the day but come occasionally to light.
One long generation a year from May till the end of July.
The caterpillar feeds on decaying wood, lichens and fungi under the dead bark of various trees, like Acer, Alnus, Betula, Carpinus, Corylus, Fraxinus, Larix, Picea, Pinus, Prunus, Quercus, Salix, Tsuga, etc. especially when the tree is infected with Armilleriella mellia. It has a preference for Carpinus betulus and Fagus sylvatica.
Open places with a lot of bushes, clearings and roads in forests, parks. The species seems to have a preference for deciduous forests in xerothermic habitats.