Abstract
Although Sweden is a country with a comparatively well-known fauna, there are still many species that await discovery, especially in the boreal regions. In this study five new species of Diplazontinae, Homotropus klopfsteinae sp. nov., Homotropus hellqvisti sp. nov., Homotropus mugerwai sp. nov., Homotropus riedeli sp. nov. and Woldstedtius aureotibialis sp. nov., are described. Sussaba roberti Klopfstein, 2014 and Homotropus megaspis (Thomson, 1890) are reported for the first time from Sweden. Four of the new species are described from boreal areas, which highlights the need to further investigate the river- and seaside areas of the western taiga.
Highlights
The subfamily Diplazontinae Viereck, 1918 contains about 355 described species in the world (Yu et al 2016; Broad et al 2018) divided between 22 recent genera
Included in the revision was a vast material of diplazontines collected in various projects, primarily the Swedish Malaise Trap Project (SMTP), which aimed to increase the knowledge of poorly know insect groups
In order to place the new taxa into a phylogenetic context (Fig. 1), sequences from the mitochondrial gene cytochrome oxydase I (COI) were obtained from Homotropus klopfsteinae sp. nov. and Woldstedtius aureotibialis sp. nov. as follows
Summary
The subfamily Diplazontinae Viereck, 1918 contains about 355 described species in the world (Yu et al 2016; Broad et al 2018) divided between 22 recent genera. Klopfstein (2014b) presented a thorough revision of the Western Palaearctic species of Diplazontinae. Included in the revision was a vast material of diplazontines collected in various projects, primarily the Swedish Malaise Trap Project (SMTP), which aimed to increase the knowledge of poorly know insect groups. Klopfstein suggested that several taxa most likely still remained undescribed within the study area and expressed hope that the JOHANSSON N., Additions to the Swedish fauna of Diplazontinae revision would inspire future research of this intriguing group of parasitoid wasps. Only one new species, Woldstedtius merkli Vas, 2016, has been described from the Western Palaearctic (Hungary) (Vas 2016). This study, which relies on the taxonomic foundation provided by the revision of Klopfstein (2014b), presents the descriptions of five new species of Diplazontinae from Sweden
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