Archarius crux (Fabricius, 1776)
The female deposits one or more (up to eight) eggs in the gall of Pontania or Euura species. The weevil larvae consumes the gall tissue, but also the egg, or the larva, of the wasp is killed and eaten. Pupation in the ground; two generations, hibernation as an adult.
Balanobius, Curculio, crux.
Avgın & Colonnelli (2011a), Dauphin & Aniotsbehere (1997a), Delbol (2013a), Dieckmann (1988a), Dieckmann & Herger (1985a), Kopelke (1985a), le Monnier (2002a), Rheinheimer & Hassler (2010a), Yunakov, Nazarenko, Filimonov & Volovnik (2018a).