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- Boström, Sven
(författare)
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Ny biografi om Axel Ohlin
- 2017
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Ingår i: Fauna och flora. - 0014-8903. ; 112:3, s. 39-40
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Recension (populärvet., debatt m.m.)
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- Liston, Andrew, et al.
(författare)
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North European gall-inducing Euura sawflies (Hymenoptera, Tenthredinidae, Nematinae)
- 2017
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Ingår i: Zootaxa. - Auckland, New Zealand : Magnolia Press. - 1175-5326 .- 1175-5334. ; 4302, s. 1-115
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Recension (refereegranskat)abstract
- The sawfly genus Euura of the tenthredinid subfamily Nematinae, in which species level taxonomy has long been regarded as controversial, is particularly species rich in northern parts of the Holarctic. Among a majority of species with more or less free-living larvae, a sizeable minority belongs to a monophyletic lineage whose larvae complete their whole development in galls. We present illustrated keys to the adults and galls of 66 gall-inducing Euura species that occur, or might occur, in northern Europe. The distribution of these species is briefly reviewed, with an emphasis on the fauna of Sweden, where 55 species are now definitely recorded, two of them for the first time (E. bigallae, E. myrtilloidica). The species-level taxonomy of gall-inducing Euura remains partly problematic. Nominal species described on the basis of experimentally tested or assumed host plant specificity, but which cannot be recognised using morphological or genetic characters, are treated as conspecific with currently indistinguishable segregates ("host-plant races") associated with other Salix species. 20 new synonymies are proposed (valid names in parentheses): Eupontania acutifoliae baltica Vikberg & Zinovjev, 2006 and Pontania acutifoliae daphnoides Zinovjev, 1993 (Euura acutifoliae(Zinovjev, 1985)), Euura boreoalpina Kopelke, 2001 (Euura lanatae Malaise, 1921), Euura cinereae Kopelke, 1996 preoccupied and Euura lapponica Kopelke, 1996 preoccupied (Euura auritae Kopelke 2000), Euura gemmacinereae Kopelke, 2001 and E. nigritarsis Cameron, 1885 (Euura mucronata (Hartig, 1837)), Euura phylicifoliaeKopelke, 2001 (Euura myrsinifoliae Kopelke, 2001), Nematus westermanni Boheman, 1852 nomen oblitum (Euura scotaspis (Förster, 1854) nomen protectum), Nematus acerosus Hartig, 1840 (Euura saliciscinereae (Retzius, 1783)), Nematus alienatusFörster, 1854 and Phyllocolpa rolleri Liston, 2005 (Euura leucapsis (Tischbein, 1846)), Nematus angustus Hartig, 1837 (Euura atra (Jurine, 1807)), Nematus erythropygusFörster, 1854 (Euura leucosticta (Hartig, 1837)), Nematus impunctatus Herrich-Schäffer, 1840 (Euura amerinae (Linnaeus, 1758)), Pontania carinifrons Benson, 1940 and Phyllocolpa plicaglauca Kopelke, 2007 (Euura destricta (MacGillivray, 1923)), Pontania obscura Kopelke, 2005 (Euura bridgmanii (Cameron, 1883)), Pontania viminalis var. lugubris Enslin, 1918 and Eupontania collactanea rosmarinifoliae Vikberg & Zinovjev, 2006 (Euura collactanea (Förster, 1854)). Euura weiffenbachiella nom. nov. is proposed as a replacement name for Euura weiffenbachii Ermolenko, 1988; preoccupied in Euuraby Pteronidea weiffenbachi Lindqvist, 1958 (Euura piliserra (Thomson, 1863)). Lectotypes are designated for the following 9 taxa: Euura insularis Kincaid, 1900, Euura lanatae Malaise, 1921, Euura lappo Malaise, 1921, Euura lappo var. hastatae Malaise, 1921, Nematus acerosus Hartig, 1840, Nematus leptocerus Förster, 1854, Nematus vallisnierii Hartig, 1837, Pontania megacephala Rohwer, 1908, and Pontania piliserra var. mascula Enslin, 1915. Because of secondary homonymy within Euura, the valid name of the Nearctic species E. arctica MacGillivray, 1919 is E. delicatula (MacGillivray, 1919). The Nearctic Euura megacephala is removed from synonymy with the Holarctic E. destricta and treated as a valid species. 34 species names are newly combined with Euura.
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- Stigenberg, Julia, et al.
(författare)
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Snapshot of the Hymenopteran fauna of Stora Karlsö
- 2017
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Ingår i: Entomologisk Tidskrift. - Uppsala. - 0013-886X. ; 138, s. 71-91
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Recension (refereegranskat)abstract
- Stora Karlsö is a small island close to Gotland in the Baltic Sea of which the Hymenopteranfauna has not been extensively studied before. In August 2014, a team of eight personscarried out an inventory of Hymenoptera, mainly the parasitoid wasps and sawflies, onthe island. Sampling was done with Malaise traps for a period of 22 days, complementedwith vegetation sweeping, branch shaking and opportunistic handpicking during a five daysojourn. As a result, about 200 species of parasitoid wasps and 14 sawflies are reported forStora Karlsö for the first time. Eleven species are reported as new to Sweden: The sawflyAthalia cornubiae Benson, 1931, the gasteruptiid Gasteruption opacum (Tournier, 1877),the diapriid Spilomicrus rufitarsis (Kieffer, 1911), the eulophid Entedonomphale bulgaricaBoyadzhiev & Triapitsyn, 2007, the braconids Bracon rozneri Papp, 1998 and Gnamptodondecoris (Förster, 1862), and the ichneumonids Bathythrix maculata (Hellén, 1957),Heterischnus filiformis (Gravenhorst, 1829), Lissonota picticoxis Schmiedeknecht, 1900,Mesochorus tipularius Gravenhorst, 1829, Ophion brevicornis Morley, 1915, and Plectochorusiwatensis (Uchida, 1928). Also the gasteruptiid Gasteruption opacum (Tournier,1877) is reported new to Sweden based on a record from inventory by NJ in 2013. Thisdemonstrates how the knowledge of Swedish biodiversity can be substantially augmentedby a short and intensive collecting expedition. We strongly recommend that other places inthe country be subjected to similar efforts.
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- Vikberg, Veli, et al.
(författare)
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Taxonomy of some European species of Mesochorus, including three new species from Finland and Sweden (Hymenoptera: Ichneumonidae: Mesochorinae)
- 2017
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Ingår i: w-album. - 1795-665X. ; 20, s. 3-42
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Recension (refereegranskat)abstract
- Redescriptions of the following seven species are made: Mesochorus gemellus Holmgren, 1860, M. tachypus Holmgren,1860, M. diversicolor Viereck, 1912, M. brevicollis Thomson, 1886, M. giberius (Thunberg, 1822), M. marginatus Thomson, 1886,and M. tetricus Holmgren, 1860. Three new species are described: M. marginatoides Vikberg sp. n. from Finland and Sweden, M.skanensis Vikberg sp. n. from Sweden, and M. ranini Vikberg sp. n. from Finland. The female of M. plumosus Dasch, 1971 isdescribed from Finland (this species is known earlier only from N. America). A key to females of the eleven studied Europeanspecies of Mesochorus is included.The following formal nomenclatural acts or changes are made: lectotypes are designated for Mesochorus tachypus Holmgren, 1860and for M. tetricus Holmgren, 1860. Mesochorus tachypus Holmgren, 1860, stat. n. (= M. macrurus Thomson, 1886, syn. n.), M.diversicolor Viereck, 1912, stat. n., M. brevicollis Thomson, 1886, stat. n., M. marginatus Thomson, 1886, stat. n., and M. tetricusHolmgren, 1860 (= M. curvicauda Thomson, 1886, syn. n.).Many females of M. tachypus and M. tetricus were found near the ground in the spruce forests in Janakkala, South Finland verylate in the season (from October to December in 2011-2016). M. cimbicis (Ratzeburg, 1844) has been reared from cocoons ofTrichiosoma sp. (scalesii Leach aggregate) and T. nanae Vikberg & Viitasaari in Finland. The correct primary host of Mesochorusbipartitus Schwenke, 1999 is Lygus rugulipennis Poppius (Hemiptera: Miridae).
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