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Trichomalus THOMSON, 1878 Remarks - Over fifty species have been described in this worldwide genus (NOYES 2003). In the Western Palaearctic at least 40 species occur (BOUCEK & RASPLUS 1991). They are usually parasitoids of Diptera and Coleoptera. Trichomalus helvipes (WALKER, 1834) - Romania, [Bistrita-Nasáud county,] Muntii Rodnei, 19.VII.1943, 1 female, leg. ERDŐS, det. THURÓCZY; Romania, [Bistrita-Nasäud county,] Muntii Rodnei, 24.VII.1943, 1 female, leg. ERDŐS, det. THURÓCZY; Romania, [Alba county,] Aiud, shores of the Mures river, 25.VII.1917, 1 female, leg. BÍRÓ, det. THURÓCZY; Romania, [Hunedoara county,] Sibisel, 9.VII.1913, 1 female, leg. BÍRÓ, det. THURÓCZY. - Common in Europe, it is usually parasitoid of Curculionidae and Apionidae (GRAHAM 1969). New species for Romania. * Acknowledgements - I wish to thank MlRCEA-DAN MlTROIU (Universitatea Al. I. Cuza, Iasi, Romania) for his help by data and papers on the records of Pteromalidae species from Romania. I am also indebted to SÁNDOR CSŐSZ (HNHM) for his critical comments on the manuscript. REFERENCES ANDRIESCU, I. 1971: Calcidoide (Chalcidoidea, Hym. Insecta) din colectia muzeului de istorie naturalä "Grigore Antipa" din Bucuresti. (Chalcidoides (Chalcidoidea Hym. Insecta) du Museum d'Histoire Naturelle "Gr. Antipa" de Bucarest.) - Lucrârile Statiunii "Stejarul" (Ecologie Terestrâsi Genetica) 4: 425-444. ANDRIESCU, I. 1973: Chalcidoidiens (Chalcidoidea, Hymenoptera, Insecta) d'importance économique de Roumanie (Catalogue Hôte / Parasite, Parasite / Hôte). - Lucrârile Statiunii "Stejarul" (Ecologie Terestrâsi Geneticä) 5: 155-190. ANDRIESCU, I. 1993: Contributii la studiul calcidoidelor (Insecta, Hym., Chalcidoidea) din rezervatia biosferei Delta Dunärii, I, Conspectul faunistic. [Contributions to the study of the chalcids from the Danube Delta Biosphere Reserve.] - Analele Stiintifice ale Institulului Delta Dunärii, Tulcea (Romania) 2: 49-58. ANDRIESCU, D. I. 2001: Importance des réserves naturelles et des zones naturelles non protégées pour la connaissance de la biodiversité. Le cas des chalcidies (Insecta, Hymenoptera, Chalcidoidea). - Lucrârile Simpozionului "Rezervatia Codrii - 30 ani. Realizàri, problème, perspective" 2: 5-7. ANDRIESCU, D. I. & MlTROIU, M.-D. 2001: Contributions to the knowledge of the pteromalids (Hymenoptera, Chalcidoidea, Pteromalidae) from David's Valley hay fields natural reserve, Iasi (II). - Analele Stiintifice ale Universitàtii "Al. I. Cuza" din Iasi (Serie Nouä) (Biologie Animalà) 48: 21-28.