Chorosoma gracile Josifov, 1968

(Figs. 15–17)

Chorosoma gracile Josifov, 1968: 255 . Lectotype (Göllner-Scheiding 1983: 119, by use of ‘Holotypus’): ♂, Bulgaria, Dikili- Tasch, 30 km W of Varna; ZISB.

Chorosoma gracile: Martynova (1975: 79, 80) (in key, figures, distribution, bionomics, host plants), Kiritshenko & Kerzhner (1976: 95) (records), Linnavuori (1976: 95) (in key), Göllner-Scheiding (1983: 119) (catalogue, distribution, bibliography), Putshkov (1986: 112, 114) (in key, diagnostic characters, figures, distribution, bionomics), Stehlík & Vavřínová (1989: 198) (record, distribution, bionomics, host plants), Moulet (1991: 413) (type material, diagnostic characters), Moulet (1995: 238, 243) (in key, redescription, figures, habitat, bionomics, host plants, distribution), Kis (2001: 77, 79) (redescription, habitus, figures, bionomics, host plant, distribution), Dolling (2006: 24) (catalogue, distribution), Schwartz et al. (2008: 346) (diagnostic characters), Vinokurov et al. (2010: 220) (catalogue, distribution), Aukema et al. (2013: 409) (distribution).

Specimens examined. CHINA. Xinjiang: Jeminay County (= Jimunai), 780 m, 15.vii.1967, leg. Y.L. Chen (1 ♂ IZAS), Gulja (= Yining), Hegu, 540–630 m, 4.viii.1957, leg. G. Wang (1 ♂ IZAS) ; Inner Mongolia: Alxa League, Helan Mountain National Nature Reserve, Halawu Management Station, Shatangzi Monitoring Station, 2300–2500 m, 29.vii.2010, leg. Y. Cui (1 ♀ NKUM) , same natural reserve, Halawu Management Station, Qianggangling, 1861 m, 8.viii.2010, leg. Y. Cui (1 ♂ NKUM) , same natural reserve, Gulaben Management Station, Heigou, 1700 m, 4.viii.2010, leg. H.X. Tang (2 ♂♂ NKUM) , same natural reserve, Gulaben Management Station, Luanchaigou, 2285–2375 m, 6.viii.2010, leg. H.X. Tang (1 ♂ 1 ♀ NKUM) , same natural reserve, Chuimo [= water mill] Pond, Xiangchizi, 1861 m, 15.viii.2010, leg. Y. Cui (1 ♂ NKUM) .

Discussion. This species can readily be recognized based on its original description and illustrations (Josifov 1968); its diagnostic characters were discussed, original illustrations or reproductions of those accompanying the original description were provided by Martynova (1975), Vásárhelyi (1983), Putshkov (1986), and Moulet (1991, 1995).

Distribution. This species is restricted to the steppic zone of Europe and central Asia. It reaches the western border of its area in the Czech Republic and Austria, it is found across Central Asia, and extends to Mongolia in the east. A distribution map was presented by Putshkov (1986: 112, fig. 61). The specimens from Xinjiang and Inner Mongolia Autonomous Regions recorded above represent the first records of this species from China.