SOME BEES FROM THE HIMALAYA MOUNTAINS. 239 



of the adventures of the British Thibet Expedition in the higher 

 passes of the Himalayas, it was naturally a great pleasure to be 

 able to study some of the bees collected at those high altitudes, 

 representing a hitherto unknown series of species, wholly diffe- 

 rent from those of the lower and well-known slopes of the 

 mountains. 



All the specimens are of course in the British Museum. 



\ 



Bomhus waltoni, sp. nov. 



$ . Length about 17| mm. ; expanse about 34 ; hair of head and 

 thorax black, with a slight admixture of greyish on mesothorax and 

 scutellum, only noticed under a lens ; hair of first abdominal segment 

 and base of second appearing a sort of grizzled black, the black hairs 

 being tipped with greyish white ; hair of apex of second segment, and 

 all the following ones bright ferruginous tipped with dull white, 

 giving an obscurely banded effect ; legs black, with black hair, the 

 middle and hind tarsi ferruginous, with ferruginous hair ; hind tibias 

 with some ferruginous hairs. Head long ; ocelli rather large ; area 

 below lateral ocelli smooth, with sparse very distinct punctures ; 

 third antennal joint long, a trifle longer than the next two combined ; 

 malar space smooth and shining, very long, though less than twice 

 as long as apical width ; clypeus convex, the disc smooth, with faint 

 rudimentary punctures ; mandibles with a straight cutting edge, apex 

 covered with light yellow tomentum ; wings translucent, reddish- 

 tinged ; last ventral segment with a delicate median groove. 



This is quite different from all the Indian species. In Friese's 

 table of European species it runs straight to B. pomormn, from 

 which it is easily known by the much longer third antennal 

 joint. In Friese's table of Arctic species it runs to B. hijper- 

 boreiis, which it does not much resemble. The colour-arrange- 

 ment is like that of B. aljiinus, B. la2)ponicus v. liujithrU, and 

 B. rufus. The Chinese B. rufus, Friese, is evidently different 

 by the short velvety hair, our insect having the hair long and 

 loose, especially on the abdomen ; riifiis also has the malar 

 space shorter. B. alpinus is considerably larger, with shorter 

 malar space. B. lapponicus has the malar space much shorter. 



Hab. Khamba Jong, Sikkim, 15-16,000 ft., July 15th-30th, 

 1903 (Thibet Expedition). British Museum. 



Also from Khamba Jong were Anthophora pidcherrima, Bing- 

 ham (variety), A. khambana, Ckll., and A. megarrhiza, Ckll. 

 From Gyangtse came A. megarrhiza soluta, Ckll. These are de- 

 scribed in a paper dealing with the genus Anthophora, sent to 

 ' Annals and Magazine of Natural History.' 



^ 



Nomada waltoni, sp. nov. 



$ . Length 9| mm., expanse about 17^ ; head and thorax strongly 



punctured, black with light markings ; pubescence scanty ; head 



broad ; eyes reddish grey ; mandibles simple, labrum with a small 



tooth next to lower border ; clypeus (except upper margin, especially 



