Body length : 9-15mm.
Host plant : Oligophagous on Salicaceae.
Found in open deciduous woodlands, woodland edges, clearings, young poplar and willow stands, hedgerows and other sunny habitats with young host trees.
The species prefers young, living trees and shrubs rather than old, mature forests.
The larvae develop in living twigs and young stems, producing characteristic spindle-shaped galls.
Mainly on Populus sp. and Salix sp.