Yasumatsu, 1934 :399 The bumblebees of North China (Apidae, Bombus Latreille) An, Jiandong Huang, Jiaxing Shao, Youquan Zhang, Shiwen Wang, Biao Liu, Xinyu Wu, Jie Williams, Paul H. Zootaxa 2014 3830 1 1 89 MFGM Yasumatsu Yasumatsu [195,717,1036,1062] Insecta Apidae Bombus Animalia Hymenoptera 49 50 Arthropoda species coreanus Psithyrus  ( Figs 88, 89)     Psithyrus (Ashtonipsithyrus) coreanus  Yasumatsu, 1934:399.   Material examined. 2 females, 5 males(IAB).   Distribution in North China.Rare at medium elevations of the Baihuashan nature reserve and the Baicaopan nature reserve in Beijing, the Wulingshan nature reserve in Hebei, the Heihe forest park and Huashan park in Shaanxi, and the Maijishan forest park and the Xiaolongshan nature reserve in Gansu. 7 localities ( Fig. 88) between 950–1992 m(IAB).   FIGURES 88–89. 88.Map showing the distribution of  B. coreanusin North China with records as black spots, the province boundaries in dark grey, and all sites with records of all bumblebee species in light grey. 89.  B. coreanusmale visiting  Veronicastrum sibiricum(Scrophulariaceae)in Beijing.  Distribution in China.Beijing, Hebei, Shaanxi, Gansu (IAB).  Forage plants. ASTERACEAE:  Cirsium monocephalum,  Ixeridium sonchifolium; SCROPHULARIACEAE:  Veronicastrum sibiricum.