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The Swedish species of Ophion Fabricius, 1798 are revised. More than 4800 specimens and relevant type material were studied; 234 sampled specimens produced COI sequences. The study recognises 41 species, 18 of which are described as new to science, mainly from Fennoscandian material: Ophion angularis Johansson & Cederberg sp. nov., Ophion arenarius Johansson sp. nov., Ophion autumnalis Johansson sp. nov., Ophion borealis Johansson sp. nov., Ophion broadi Johansson sp. nov., Ophion brocki Johansson sp. nov., Ophion confusus Johansson sp. nov., Ophion ellenae Johansson sp. nov., Ophion inclinans Johansson sp. nov., Ophion kallanderi Johansson sp. nov., Ophion matti Johansson sp. nov., Ophion norei Johansson sp. nov., Ophion paraparvulus Johansson sp. nov., Ophion paukkuneni Johansson sp. nov., Ophion splendens Johansson sp. nov., Ophion sylvestris Johansson sp. nov., Ophion tenuicornis Johansson sp. nov. and Ophion vardali Johansson sp. nov. Barcoding analysis also indicated the possible presence of at least three additional, partly cryptic species, but these cannot be separated morphologically with certainty at this point. Ophion costatus Ratzeburg, 1848 and Ophion artemisiae Boie, 1855 are interpreted and defined. Ophion slaviceki Kriechbaumer, 1892 is excluded from synonymy with Ophion luteus Linnaeus, 1758 stat. rev. Ophion polyguttator (Thunberg, 1824) stat. rev. and Ophion variegatus Rudow, 1883 stat. rev. are excluded from synonymy with O. obscuratus Fabricius, 1798. Ophion variegatus is redescribed and a neotype is designated. Ophion albistylus Szépligeti, 1905 (syn. nov.) is synonymized with Ophion pteridis Kriechbaumer, 1879 and Ophion frontalis Strobl, 1904 (syn. nov.) is synonymized with Ophion areolaris Brauns, 1889 syn. nov. Eleven species are reported from Sweden for the first time: Ophion artemisiae, Ophion crassicornis Brock, 1982, Ophion costatus, Ophion dispar Brauns, 1895, Ophion forticornis Morley, 1915, Ophion kevoensis Jussila, 1965, Ophion ocellaris Ulbricht, 1926, Ophion perkinsi Brock, 1982, Ophion subarcticus Hellén, 1926, Ophion variegatus Rudow, 1883 and Ophion wuestneii Kriechbaumer, 1892. The study shows that a number of species that previously have been treated as highly variable taxa, actually consist of several valid species that are separable using morphological characters. An illustrated key for the determination of the Swedish Ophion species is provided.
The Swedish species of Enicospilus are reviewed. Three species are described from Swedish material; Enicospilus cederbergi sp. nov., Enicospilus intermedius sp. nov. and Enicospilus ryrholmi sp. nov. Four species: Enicospilus cerebrator Aubert, 1966, Enicospilus combustus (Gravenhorst, 1829), Enicospilus merdarius (Gravenhorst, 1829) and Enicospilus myricae Broad & Shaw, 2016, are reported from Sweden for the first time. An illustrated key to the Swedish species of Enicospilus is provided. Validity of the new species is supported by DNA barcoding.
Neoxorides Clément, 1938 is a small genus of ichneumonid wasps that develop on wood-boring beetles. We here revise the Western Palaearctic species of the genus, with a special focus on Sweden. A new species, N. striatus Johansson sp. nov. is described. Neoxorides opacus (Kokujev, 1903) stat. rev. is excluded from the synonymy with N. nitens (Gravenhorst, 1829) and reinstated as a valid species. The species is redescribed from European material. Neoxorides kissi (Ulbricht, 1911) is confirmed as a junior synonym of N. opacus. A neotype for N. opacus is designated. New characters to distinguish N. varipes (Holmgren, 1860), N. collaris (Gravenhorst, 1829) and N. montanus Oehlke, 1966 are presented. Almost all of the species treated are supported by DNA-barcoding. An illustrated key to the species occurring in the Western Palaearctic is provided, a prerequisite for making the genus accessible for future ecological and conservation studies.
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.