In this paper the author presents the results of his researches made during the period 2001 - 2003 on ichneumonological fauna of Barnova massif. In this massif, because of the favourable ecological conditions, there develops a rich ihneumonological fauna, which had raised the interest of many specialists. Ichneumonids represent a group of parasitoid entomophagous insects with an important role in maintaining the ecological equilibrium in nature. We identified 54 ichneumonid species belonging to 37 genera of 12 subfamilies. Out of these, 30 species are new for the Barnova massif fauna, Aritranis dubia Tasch. being new for the Romania's fauna too. Heterischnus excavatus Const, is a Romanian endemite. BR Systematics. Nomenclature. Land zones. Palaearctic region. Eurasia. Europe. Ichneumonidae (Ichneumonoidea); Aritranis dubia (Tasch.) (Ichneumonidae): Description, P. 33; Ichneumon lugens (Ichneumonidae); Rhadinodonta flaviger (Ichneumonidae). Aritranis dubia: Romania, New record; Ichneumon lugens, Rhadinodonta flaviger: Romania, Iasi, Barnov massif, New summer record; Ichneumonidae: Romania, Iasi, Barnov massif, Faunal list, new record. ST Animalia, Arthropoda, Insecta, Hymenoptera, Apocrita, Terebrantia, Ichneumonoidea, Ichneumonidae. Arthropods; Hymenopterans; Insects; Invertebrates. none2006