Stilbum calens (Fabricius, 1781)

Chrysis calens Fabricius, 1781: 455. Holotype ♀; Russia: Siberia (NHMUK).

Stilbum calens zimmermanni Linsenmaier, 1959: Linsenmaier 1997b: 132 (China, Inner Mongolia [not Mongolia]).

Material examined.

Mongolia: Arkhangai, 9 ♀♀, 25 km NE of Tsetserleg, 47°38'N, 101°45'E, 23.VII.2004, leg. JH (MHC); Bulgan, 1 ♀, Mongol Els Nat. Res., dunes, 47°24'N, 103°39'E, 31.VII.2005, leg. JH (MHC); Dornogovi, 1 ♂, 28 km SE of Chatan-Bulag, steppe, 3.VIII.2007, leg. MK (PRC); Tuv, 2 ♀♀, 1 ♂, Khangayn Mts, 5 km N of Khunt, 20.VII.2005, leg. JH (MHC); 1 ♂, 75 km W of Ulaanbaatar, dunes, 2.VIII.2005, leg. JH (MHC); Uvurkhangai, 3 ♀♀, 12 km E of Aravaykheer, 46°22'N, 102°49'E, 1800 m, 3.VII.2004, leg. JH (MHC).

Distribution.

*Mongolia (Arkhangai, Bulgan, Dornogovi, Tuv, Uvurkhangai); widely distributed in the Palaearctic Region (Tsuneki 1948, Linsenmaier 1959), Russia (Siberia), China (Liaoning, Beijing, Inner Mongolia, Shanxi) (Rosa et al. 2019). Linsenmaier (1997b) mentioned Mongolia in the distribution range of Stilbum calens, yet the specimen examined by the Swiss author was collected in China, Inner Mongolia: 1 ♂, Hutjertu Gol [currently Khujirt Gol River, near Bailingmiaozhen monastery, N of Baotou, Inner Mongolia, China] 1927, Sven Hedins Exp. Ctr. Asien Dr. Hummel, det. Linsenmaier 1963 (NMLS).