Xiphydria betulae (Enslin, 1911) ny för Sverige och nya noteringar av Xiphydria picta Konow, 1897 (Hymenoptera: Xiphydriidae) samt noteringar av två sällsynta brokparasitsteklar knutna till halssteklar

Abstract

The wood wasp Xiphydria (Konowia) betulae (Enslin, 1911) is reported for the first time from Sweden and the known Swedish records of the rare Xiphydria picta Konow, 1897 are presented. An account of two of the ichneumonid wasps associated with Xiphydria; Pseudorhyssa alpestris (Holmgren, 1860) and Rhyssella obliterata (Gravenhorst, 1829) and their occurrence in Sweden is given. The species ecology and habitat requirements are discussed.