Colias nebulosa richthofeni Bang-Haas, 1927

(Figs. 15, 18, 41, 43–44, 46–47, 49, 69)

Colias cocandica richthofeni Bang-Haas, 1927: 110, pl. 6, figs. 1–3 (TL: Jiutiaoling, 50 km W. of Wuwei: Grieshuber et al., 2012).

Colias nebulosa richthofeni: Verhulst, 1991 C: 211, pl. 2, figs. 7–12, 211-figs., 213-figs. 1–2 for ♂♂ & ♀♀; Verhulst, 2001: pl. 42, figs. 17–24 for ♂♂ & ♀♀; Grieshuber et al., 2012: pl. 11, figs. 21–28 for ♂♂ & ♀♀ (type specimens); Grieshuber, 2014: 31, figs. for ♂♂ & ♀; Grieshuber, 2016b: photos of holotype and paratypes.

Colias nebulosa niveata: Verhulst, 1991 C: partim, pl. 2, figs. 13–18 for ♂♂ & ♀♀ from Heimahe; Verhulst, 2001: partim, pl. 43, figs. 13–24 for ♂♂ & ♀♀ from Heimahe, Qinghai-nanshan & Caka.

Material examined. CHINA: Qinghai: 3 ♂♂ (CSK), Guanjiaoshan, Tianjun, 1–10.VII.2020, Y. Yang leg. ; 6 ♀♀ (CSK), Qinghai-nanshan, Gonghe, 27.VII.2012, K. Song leg. ; 1 ♂ (CHH), Heimahe, VII.2005, local collector leg., ex. coll. X. Lu. Gansu: 1 ♂ (CHH), Qilian Shan, Sunan, VIII.1996, J.-B. Tian leg.

Flight period. Early July to early August.

Altitude. 3600–3800m.