Chrysis equestris Dahlbom, 1854

Paukkunen, Juho, Rosa, Paolo, Soon, Villu, Johansson, Niklas & Ødegaard, Frode, 2014, Faunistic review of the cuckoo wasps of Fennoscandia, Denmark and the Baltic countries (Hymenoptera: Chrysididae), Zootaxa 3864 (1), pp. 1-67 : 45

65. Chrysis equestris Dahlbom, 1854

? Chrysis sexdentata Dahlbom, 1831: 30 , nom. praeocc., nec Christ, 1791. Holotype ♀; Sweden: Vestrogothia, Kinnaskog [= Västergötland, Kinnaskog] (lost?). Zetterstedt 1840: 434.

Chrysis Zetterstedti [part.]: Dahlbom 1845: 11, Thomson 1870: 107, Mocsáry 1889: 541, Aurivillius 1911: 12, Frey 1915: 43. Chrysis equestris Dahlbom 1854: 307 . Holotype ♀; locality unknown [most likely Sweden] (NRM) (examined). Linsenmaier 1959: 163, Valkeila 1962: 64, Erlandsson 1971: 90, Silfverberg 1981: 61, Nilsson 1986: 86, Vikberg 1986b: 68, Hedström 1987: 156, Nilsson 1991: 82, Linsenmaier 1997: 130, Hellqvist 1999: 10, Söderman & Vikberg 2003: 45, Soon 2004: 21, 46, Karlsson 2008, Johansson 2009, Johansson 2010: 118, Orlovskytė et al. 2010: 148, Paukkunen 2010: 538, Smissen 2010d: 392, Soon & Saarma 2011: 15, Hallin 2012, Rosa & Soon 2012, Dyntaxa 2013.

Chrysis zetterstedti [nec Dahlbom, 1845]: Ehrström 1915: 129, Hellén 1920: 213.

Chrysis fasciata [part.]: Trautmann 1927: 182, Hellén 1935: 8, Balthasar 1954: 237, Haupt 1957: 96.

Chrysis fasciata [nec Olivier, 1790]: Artsdatabanken 2010.

Material examined: * Norway: Recent finds of the species have been made from AK: Oslo (2005 and 2006), and BØ: Ringerike (1997) and Nedre Eiker (2012).

Distribution. Estonia, Finland, Lithuania, * Norway, Sweden.—Westpalearctic: from West Europe to southern Russia ( Linsenmaier 1997).

Remarks. This species has often been mixed or synonymized with Chrysis zetterstedti , and records in older literature can be difficult or impossible to assign to either species. Because C. equestris is the more common of the two species in the Nordic and Baltic countries, the old literature references which could refer to either species are listed here under C. equestris . In Sweden, C. equestris is relatively widespread, and the northernmost records are from as far north as Överkalix in Norrbotten province. In Finland it is very rare and classified as regionally extinct in the national red list ( Paukkunen 2010). However, it was rediscovered in 2011 after an absence of 50 years, in the southeast part of the country. In Norway, C. equestris has been confused with C. zetterstedti , and it has not been previously reported from that country and is considered data deficient there ( Hansen et al. 2010, as C. fasciata ).