S. Mahunka szerk.: Folia Entomologica Hungarica 62. (Budapest, 2001)
DISCUSSION The representatives of the Plagiotrochus genus were known to associate with evergreen oaks only. Now the genus includes the first species, P. marianii, the sexual gall of which develops on a deciduous Quercus cerris. Our results are interesting from other point of view too. The provisional cladistic analysis (Pujade-Villar et al. in prep.) showed that Chilaspis Mayr genus which is tropically associated with Q. cerris only, is very closely related to Plagiotrochus. Chilaspis differs from Plagiotrochus in the scutum, which is smooth, and the scutellum is relatively more produced to metanotum. We do not know yet the phylogenetical importance of these diagnostic characters but we can affirm yet that the cladc, which includes Callirhytis, Plagiotrochus and Chilaspis, is a monophyletic group and is not a basal group in the Cynipini. Acknowledgements — We express our deepest appreciation to Dr. S. Schödl (NHMW, Vienna, Austria) for the loan of Fioriella and Plagiotrochus specimens and the supporting our studies during the stay of the first author at the NHMW. We also thank D. Bellido (University of Barcelona, Spain) for his valuable suggestions and comments on the manuscript. We are greatly indebted to the deceased Dr. F. Barbotin for the information on Plagiotrochus razeti and Dr. R. Folliot (Rennes University, France) for sending us specimens P. razeti (asexual and sexual generations) obtained experimentally by Dr. Barbotin. REFERENCES Ambrus, B. (1974): Cynipida- Gubacsok - Cecidia Cynipidarum. — In: Magyarország Állatvilága (Fauna Hungáriáé). 12,2. Akadémiai Kiadó, Budapest, 120 pp. Barbotin, F. (1972): Sur quelques Cynipinae nouveaux cycles, nouvelles galles, nouvelles espèces. — Marcellia 37(5): 39-51. Barbotin, F. (1985): Description de trois espèces nouvelles se rapportant au genre Plagiotrochus (Hymenoptera, Cynipoidea, Cynipidae). — Revue Française d'Entomologie, (N. S.) 7,2: 55-59. Dalla Torre, K. W. & Kieffer, J. J. (1910): Cynipidae. — In: Schulze, F. E. (ed.): Das Tierreich. Berlin, 24. 891 pp. Fergusson, N. D. M. (1995): The cynipoid families, pp. 247-265. — In: Hanson, P. E. & Gauld, I. D. (eds): The Hymenoptera of Costa Rica. Oxford, New York, Tokyo, Oxford University Press. XX + 1-893. Gibson, G. A. P. (1985): Some pro- and mesothoracic structures important for phylogenetic analysis of Hymenoptera, with a review of tenns used for the structures. — Canadian Entomologist 117:1395-1443. Horn W., Kahle, I., Friese, G. & Gaedike, R. (1990): Collectiones entomologie ae. — Berlin, Akademie der Landwirtschaftswissenschaften der Deutschen Demokratischen Republik, 1-2: 1-540. Kieffer, J. J. (1897-1901): Les Cynipides. — In: André, E. et André, E. (edt): André Species des Hyménoptères d'Europe et d'Algérie, Vol. 7. Paris, 1-748 pp. Kieffer, J. J. (1902a): Description de qucqucs cynipides nouveaux ou peu connus. — Bulletin de la Société d'Histoire Naturelle de la Metz 10(2): 1-18. Kieffer, J. J. (19026): Neue europäische Cecidien. — Allgemeine Zeitschrift für Entomologie 7: 495^98.
