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Acknowledgments — We are very grateful to Dr. R. Folliot (Université de Rennes, France) for sending us specimens of Andricus malpighii and A. quadrilineatus that helped us to compare the galls of the sexual generations, and Dr. A. Bachman (Universidad de Buenos Aires, Argentina) for his valuable suggestions concerning the International Code of Zoological Nomenclature. REFERENCES Adler, H. (1881): Über den Generationswechsel der Eichengall-wespen. — Z. wiss. Zool. 35: 151-246. Ambrus, B. (1974): Cynipida-Gubacsok-Cecidia Cynipidarum. — Magyarország Állatvilága (Fauna Hungáriáé), XII, 2. Akadémiai Kiadó, Budapest, 120 pp. Diakontshuk, L., Melika, G. (1994): A compilation of the oak galling cynipids (Hymenoptera: Cynipidae) in the Ukraine. — In: Price, P. W., Mattson, W. and Baranchikov, Y. N. (eds): The Ecology and Evolution of gall-forming insects. US Department of Agriculture, General Technical Report NC-174, pp. 102-108. Dalla Torre, K. W. (1893): Catalogus hymenopterorum hucusque descriptorum systematicus et synonymicus. Vol. II. Cynipidae. — Lipsiae, 140 pp. Dalla Torre, K. W., Kieffer, J. J. (1910): Cynipidae. — Das Tierreich, 24. Berlin, 891 pp. Docters van Leewen, W. M. (1957): Gallenboek. — Tweede druk, 332 pp. Eady, R. D., Quinlan, J. (1963): Hymenoptera: Cynipoidea. Key to families and subfamilies and Cynipidae (including galls). — Handbook for the identification of British Insects, 8(1 a), 81 pp. Hoffmeyer, E. B. (1925): Bemaerkninger om ganske Galhvespe. — Ent. Meddr. 16(1): 1-8 Ionescu, M. (1957): Cynipidae. Fauna Republicii Populaire Romine. Insecta, vol. IX (2). — Academia Republicii Populaire Romine, Bucarest, 246 pp. Melika, G.and Csóka, Gy. (1993): Comparing the oak galling cynipid fauna of Transcarpathia with that of northern Hungary and the rest of the Ukraine. — In: Price, P. W., Mattson, W. and Baranchikov, Y. N. (eds): The Ecology and Evolution of gall-forming insects. US Department of Agriculture, General Technical Report NC-174, pp. 96-101. Nieves-Aldrey, J. L. (1988): Cinipidos gallicolas e inquilinos de la sierra de Guadarrama y zonas adyacentes (Hym., Cynipidae, Cynipinae). — Eos 64:125-163. Pfützenreiter, F., Weidner, H. (1958): Die Eichengallen im Naturschutzgebiet Favoritepark in Ludwigsburg und ihre Bewohner. — Verh. Land. Natur. Lands. 26: 88-130. Pujade-Villar, J. (1997): Malformacions produïdes per cinipids als borrons de fagácies detectades a Andorra. —Ann. Inst. Est. And. 1995: 13-39. Tavares, da Silva, J. 1919. Espécies novas de Cynípides e Cecidomyias da Peninsula Iberica e descripçao de algunas ja conhecidas. Segunda série (cont). —Brotéria, Ser. zool. 17: 5-101. Weidner, II. (1960): Die Cynipidengallen des westlichen Norddeutschlands und ihre Bewohner. — Abh. naturw. Ver. Bremen 35: 477-548. Wiebes-Rijks, A. A. (1976): De Nctherlandse meeldraas-en knopgallen van het genus Andricus Hartig (Hymenoptera, Cynipidae). — Ent. Ber., Amst. 36: 68-73. Wiebes-Rijks, A. A. (1979): A character analysis of the species of Synergus Hartig, section II (Mayr, 1872) (Hymenoptera, Cynipidae). — ZoóV. Meded., Leiden 53: 297-321. {Received: 18th February, 2000) Authors' addresses: Juli PUJADE-VILLAR Universität de Barcelona. Facilitât de Biológia Departament de Biológia Animal Avda Diagonal 645 E-08028 Barcelona, SPAIN e-mail: pujade@porthos.bio.ub.es George MELIKA Systematic Parasitoid Laboratory Vas County Plant Health and Soil Conservation Station H-9730 Kőszeg, Kelcz-Adelffy St. 6 HUNGARY e-mail: chalcini@savaria.hu