Phanacis zwolferi Nieves-Aldrey 1995

Nieves-Aldrey 1995. Two new species of Aylacini (Hymenoptera: Cynipidae) from France, associated with Silybum and a new gall from Scorzonera (Asteraceae). Annales de la Societe Entomologique de France, 31(4), Decembre 1995: 369-375