Colias lada Grum-Grshimailo, 1891

(Figs. 11, 42–43, 45–46, 48–49, 61, 71)

Colias lada Grum-Grshimailo, 1891: 447 (TL: Myn-da-sha Valley, Laji Shan: Grieshuber et al. 2012); Grieshuber 2016a: photos of syntypes.

Material examined. CHINA: Qinghai: 15 ♂♂ & 8 ♀♀ (CSK, CHH), Jiegu, Yushu, 3900m, 20–22.VI.2010, 25.VI–2.VII.2011 & 25.VII.2019, K. Song leg .. Sichuan: 2 ♂♂ (CHH), Haizishan Pass, road between Litang and Batang, 4675m, 25.VI.2020, Z. Yao leg. ; 1 ♀ (CHH), Haizishan Pass, road between Litang and Batang, 4675m, 10.VIII.2020, H. Huang leg.

Flight period. Late June to late July in S. Qinghai; Late June to mid August in W. Sichuan.

Altitude. 3900m in Qinghai; 4700m in W. Sichuan .

Distributional notes. This species was recorded by various authors from Xiahe, Gansu (Verhulst 1993, 2001; Dietz 2002; Grieshuber 2014). But no recent record from the type locality has been known.