Taxonomy and nomenclature of some Fennoscandian Sawflies, with descriptions of two new species (Hymenoptera, Symphyta)

Abstract

While working on an identification guide to the sawflies of Fennoscandia, we encountered numerous taxonomic problems, for some of which we present solutions.DicrostemaBenson, 1952 is a new synonym ofPhymatoceropsisRohwer, 1916, and not congeneric withParacharactusMacGillivray, 1908. Two species occurring in Europe are transferred toPhymatoceropsis.Dolerus aericepsellusHeidemaa and Mutanensp. nov.andHeptamelus viitasaariiListon, Mutanen and Proussp. nov.are described from Finland.Abia brevicornisLeach, 1817nom. rev.is the valid name ofAbia nitensauct. nec Linnaeus, andAbia nitens(Linnaeus, 1758) is the valid name for what has recently been calledAbia sericea(Linnaeus, 1767).Tenthredo haemorrhoidalisFabricius, 1781 is treated as an unplaced species of Hymenoptera, possibly Ichneumonoidea.Calameuta variabilis(Mocsáry, 1886) is the valid name of the species recently generally calledC. haemorrhoidalis.Claremontia confusa(Konow, 1886)sp. rev.andClaremontia brevicornis(Brischke, 1883) are distinct species.Dolerus coracinus(Klug, 1818) is the valid name forD. anthracinusauct.Dolerus anthracinus(Klug, 1818) is a valid species similar toD. nitensZaddach, 1859.Dolerus coruscansKonow, 1890sp. rev.is a valid species.Dolerus junci(Stephens, 1835) is the valid name forDolerus cothurnatusauct.Dolerus timidus(Klug, 1818)sp. rev.is distinguished from the similarD. pratensis(Linnaeus, 1758). A neotype is designated forAstatus punctatusKlug, 1803. Lectotypes are designated for 39 nominal species. 29 species group names are new junior synonyms. We present data on some species recently collected for the first time in Finland, including first records for the Palaearctic and West Palaearctic.