Kerzhner, 1970a; Linnavuori, 1986a, 1992b.
Distribution
Drapolyuk, 2001 (Azerbaijan); Baugné et al., 2002 (Belgium); Rabitsch, 2004 (Austria); Derzhansky & Matocq, 2005 (Moldavia); Gibbs & Nau, 2005 (Great Britain); A. Gogala, 2006 (Slovenia); Pagola- Carte et al., 2006 (Spain); Rieger, 2007 (Greece); Protić, 2011d (Serbia).