not so common species in Belgium.
larva, which has a two-year cycle, lives in a case on a wide range of rosaceous trees and shrubs including Crataegus, Malus, Pyrus, Mespilus, Prunus, Sorbus, Cotoneaster, Cydonia and Chaenomeles.
The larva lives in a small pistol-case for the first twenty months and
in the second spring, it builds a long straight case. Pupation in
the case attached to the upper surface of a leaf or twig.
adults fly in one generation a year during July. They come occasionally to light.
Namur, Lavaux Ste.-Anne, 11 May 2007.
first case on Pyrus
(Photo © Chris Steeman)