Dryocosmus cerriphilus Giraud, 1859
Quercus cerris, Hungary, Budapest © László Érsek
group of about 30, 5 mm long galls that erupt at all sides from a not too thin branch. Each individual gall is unilocular, sticky, and egg-shaped. Fresh galls are attended by ants.
Fagaceae, narrowly monophagous
Only the agamous generation is known. Several older authors supposed that Dryocosmus nervosus is the sexual generation, and Hellrigl states this for certain, but the Fauna Europaea (2013) takes both as independent species.
Buhr (1965a), Hellrigl (2009a), Hellrigl & Bodur (2015a), Katılmış & Kıyak (2008a), Kemal & Koçak (2010a), Marković (2015a), Melika (2006a), Melika, Csóka & Pujade-Villar (2000a).