Isocolus serratulae (Mayr, 1882)
The achenes are transformed into tough, oval, unilocular galls, and fused into a solid mass, that remains enclosed by the involucrum during the winter.
Klasea erucifolia, lycopifolia, nudicaulis, radiata.
Aulax, Aylax, serratulae Mayr, 1882.
The galls cannot be distinguished from those of Aulacidea pilarae.
Buhr (1965a), Houard (1909a), Melika (2006a), Nieves-Aldrey (1994a, 2012a).