Description: English: Acacia longifolia, inflorescence galls caused by the bud galling wasp, Trichilogaster acaciaelongifoliae (Hymenoptera: Pteromalidae), an introduced biological control agent. Caledon Wild Flower Show, Caledon, Western Cape, South Africa. Date: 11 September 2010. Source: Own work. Author:
SAplants.