Archarius salicivorus (Paykull, 1792)
The female deposits an egg in the gall of Euura (“Pontania”) species, like the common Euura proxima. The wasp larva eventually dies, but is not consumed by the weevil larva. Thee weevil larva is larger than the Euura larva, has no feet, and always lies in a horse-shoe position. Pupation in the ground; two generations, hibernation as an adult.
Buhr (1965a), Dauphin & Aniotsbehere (1997a), Kopelke (1985a), Rheinheimer & Hassler (2010a).