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 50. Bombus ( Sibiricobombus ) sibiricus (Fabricius) ( Fig. 53 ) Apis ʃ ibirica [ sibirica ] Fabricius, 1781 :478 , type not seen. Russia : ‘Sibiria’. Material examined. 1 queen 67 workers 11 males (IAB). Distribution in Gansu. Common at low to medium elevations of the eastern loess plateau, western mountains, rare at medium elevations of the northwestern Qilianshan mountains ( Fig. 53 ); 10 localities between 1161 and 2604 m (IAB). Distribution in China . Hebei, Neimenggu, Shaanxi, Gansu, Ningxia, Xinjiang (IAB). Forage plants. ASTERACEAE : Carduus crispus , Cirsium setosum , Cosmos bipinnatus , Olgaea tangutica ; FABACEAE : Astragalus adsurgens , Hedysarum tanguticum ; LAMIACEAE : Leonurus Artemisia .