Abstract
SummaryFollowing the study of 28 species of Lepturinae (Coleoptera: Cerambycidae) the karyotypes of seven additional Palaearctic and one Nearctic species are established. The 19,X male karyotypes found in genera Stictoleptura (four species), Vadonia and Judolia (one species each) confirm the loss of Y chromosome in Lepturini. The 22,XY male karyotype of Cortodera humeralis is very close to that of some species of Rhagiini (genera Gaurotes, Acmaeops, Dinoptera, all 22,XY) and Grammoptera ruficornis (24,XY) recently reported. We propose that these taxa could form a monophyletic group within Rhagiini. The karyotype of the Nearctic species Desmocerus palliates (23,neoXneoXneoY) is quite different and characterized by the presence of many acrocentric chromosomes and a complex autosome–gonosome translocation. Its particular karyotype is compatible with its present classification within a separate tribe, the Desmocerini.
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