A new species of cynipid herb gall wasp, Aulacidea turcica Azmaz & Katılmış sp. n., (Hymenoptera: Cynipidae: Aulacideini) is described from Turkey. Based on morphological characters, A. turcica belongs to the genus Aulacidea. Both sexual females and males of this species are known and the females induce galls on the stem of Digitalis ferruginea. This is the first record of host use in the genus Digitalis and possibly the family Plantaginaceae by a species of Aulacidea. Five species belonging to Aulacideini were previously known from Turkey. SEM images and data on the diagnosis, distribution, and biology of the new species are provided.