Andricus bulgaricus Vassileva-Symnalieva, 1978
unilocular bud gall. The gall is elongated sac-like, narrower at the base; sometimes the gall is tubular. The gall is 11-23 mm long and 7-9 mm wide at its largest width. The gall chamber is located in the basal part of the gall; its wall is not well-differentiated from the gall parenchyma. The gall turns dark brown and lignified, and does not drop from the tree.
Only the agamous generation is known of this species.
Bellido, Ros-Farré, Melika & pujade-villar (2003a), Hellrigl & Bodur (2015a), Karaca & Katılmış (2020a), Katılmış & Kıyak (2008a), Kemal & Koçak (2010a), Melika (2006a).