The bumblebees of North China (Apidae, Bombus Latreille) Author An, Jiandong Author Huang, Jiaxing Author Shao, Youquan Author Zhang, Shiwen Author Wang, Biao Author Liu, Xinyu Author Wu, Jie Author Williams, Paul H. text Zootaxa 2014 3830 1 1 89 journal article 36819 10.11646/zootaxa.3830.1.1 bee37b6c-7c93-4c85-a3e9-1733eb5acba8 1175-5326 286560 D1B92849-3D00-4C27-809E-15A3B50ECF19 26. Bombus ( Thoracobombus ) pascuorum (Scopoli) ( Figs 54, 55 ) APIS Pa ∫cuorum [ pascuorum ] Scopoli, 1763 :306 . Apis ∫enilis [ senilis ] Fabricius, 1775 :382 . Apis agrorum Fabricius, 1787 :301 (not of Schrank, 1781 :397 = B. mesomelas Gerstaecker ). Material examined. 8 workers , 20 males (IAB). Distribution in North China . Only in northeastern Neimenggu. Common at low elevations of the Moerdaoga forest park, in the transition zone between the Hulunbeir grasslands and the Great Khingan mountains forests in northeastern Neimenggu. Rare at low elevations of the Nenjiang river valley in Elunchun, northeastern Neimenggu, and at medium elevations of the Huanggangliang forest park of the southernmost of the Great Khingan mountains in Neimenggu. 4 localities ( Fig. 54 ) between 395–1665 m (IAB). Variation in North China . This species shows strong variation in the colour pattern of the hair across its global distribution. In North China it shows only a small part of this variation (see the key). Similar species in North China . This species is similar in its brown colour pattern to B. schrencki , B. hedini , B. tricornis and B. atripes (see the key; Figs 55 , 57 , 59, 69, 71). Distribution in China . Neimenggu, Heilongjiang, Xinjiang (IAB). Forage plants. ASTERACEAE : Achillea millefolium , Hieracium umbellatum , Saussurea sp. , Serratula coronata ; CRASSULACEAE : Orostachys fimbriata , O . malacophylla ; ONAGRACEAE : Chamerion angustifolium ; RANUNCULACEAE : Aconitum kusnezoffii ; SCROPHULARIACEAE : Pseudolysimachion linariifolium .