Chromosomes of ichneumonids of the subfamily Pimplinae, Dolichomitus terebrans (Ratzeburg) (2n = 34), Scambus nigricans (Thomson) (2n = 28), Pimpla turionellae (Linnaeus) (2n = 30) and Perithous scurra (Panzer) (= mediator (Fabricius)) (2n = 42) were studied for the first time. Chromosome numbers of the examined species of Pimplinae are comparatively high (2n = 28 or more, with the single exception of 2n= 18), and that of P. scurra is the highest in all parasitic wasps.
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