The bumblebees of Gansu, Northwest China (Hymenoptera, Apidae) Author An, Jiandong Author Williams, Paul H. Author Zhou, Bingfeng Author Miao, Zhengying Author Qi, Wenzhong text Zootaxa 2011 2865 1 36 journal article 10.5281/zenodo.204407 edb85fb3-1682-4a1b-9252-eba9ee0b9706 1175-5326 204407 27. Bombus ( Psithyrus ) coreanus (Yasumatsu) ( Fig. 30 ) Psithyrus (Ashtonipsithyrus) coreanus Yasumatsu, 1934 :399 , type not seen. Korea . Material examined. 1 male (IAB). Distribution in Gansu. Rare at medium elevations of the southeastern mountains ( Fig. 30 ); 1 locality 1738 m (IAB). Distribution in China . Beijing, Hebei, Shaanxi, Gansu (IAB). Forage plants. ASTERACEAE : Cirsium monocephalum .