[FR] Deux nouvelles especes d' Aylacini (Hymenoptera : Cynipidae) de France associées a Silybum et description d'une nouvelle galle sur Scorzonera (Asteraceae). - Les deux especes décrites du Sud de la France (Aulacidea freesei, sp. n. et Phanacis zwolferi, sp. n.) produisent des galles dans les tiges de Silybum marianum et sont les premieres especes d' Aylacini trouvées sur cette plante. Aulacidea laurae Nieves-Aldrey, espece connue seulement d'Espagne, se trouve aussi en Franee et sa galle, formée dans les achenes de Scorzonera laciniata (Asteraceae), est décrite pour la premiere fois. Aulacidea macula Forsius, 1921, tres semblable mais non co-spéeifique d'Aulacidea laurae, est considérée comme synonyme d'Aulacidea abdominalis (Thomson, 1877)

[EN] The two speeies described from South of France (Aulacidea freesei, sp. n. and Phanacis zwolferi, sp. n.) are gall inducers in stems of Silybum marianum and represent the first known Aylaeini species associated with this plant. Aulacidea laurae Nieves-Aldrey, previously recorded only from Spain, is reported from France and its gall, formed in achenes of Scorzonera laciniata (Asteraceae), is described for the first time. Aulacidea macula Forsius, 1921, closely allied but not conspecific with Aulacidea laurae, is synonimymized with Aulacidea abdominalis (Thomsol1, 1877)

Financial support was partly provided by the Research project "Fauna Iberica III", SEUI-DGICYT PB92-0121

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