Abstract
Aulacidea kiefferi Cotte, 1915, a cynipid species that induces gall formation on the plant Carthamus lanatus L., known only from a single old record from France, was recently re-discovered in a locality south-east of Madrid (central Spain). In this study, we re-describe the species, including a new description of the male and the terminal larva. We transfer the species to the genus Phanacis , and provide a key for the identification of the related West European Phanacis species. P. kiefferi might potentially be used as an agent for the biological control of the host plant, C. lanatus , the saffron or distaff thistle, a harmful weed native to the Mediterranean Region, with a virtually worldwide current distribution.
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