The Geor/ra^y/u'cal Raccfi 0/ Vipcra animodytes. 283 



Fricse, found in arctic Siberia. B. hizonatus, Sm., is a snper- 

 iic'ially similar insect, hut is easily separated by the entirely 

 hhick hair of tiie face and vertex. The malar space also is 

 considerably shorter in bizonatus than in the Sikkim so-called 

 trij'asciutus. I have no authentic pijropyijus, but I have 

 B. kirbi/ellus, Curtis, of which Friese considers pyropy(/us a 

 subspecies, and on close comparison it seems to agree struc- 

 turally with the Sikkim bee. It seems therefore that we 

 may safely add B. pj/ropi/gus to the fauna of the Himalayas — 

 a very interesting extension of range. We have indeed a 

 somewhat parallel case in America, for a male of the arctic 

 B. kirhijellus (det. Franklin) was taken by my wife in the 

 aictic-alpine zone on the Truchas Peaks, New Mexico. 



Coslioxys grindelice, Cockerell. 



Santa Fe, New Mexico, Aug. 2, 1912, 2 ^ [Cockerell). 



1 have described the fourth ventral segment as entire, but 

 the smooth median space is bounded on each side by a tooth, 

 and if the segment is looked at from in front these teeth 

 appear prominent, the interval between them becoming a 

 shallow enuirginatiou. In C. ribis kincaidi the middle of tlie 

 apical margin of the fourth segment is truncate, without any 

 teeth. 



Coelioxys ribis, Cockerell. 



Nova Scotia, ? (F. Smith's collection ; British Museum). 



This agrees with a specimen from Eeulah, New Mexico, 

 except that the apical part of the fourth ventral segment is 

 quite closely beset with minute punctures, whereas in New 

 Mexico ribis these punctures are much less evident and more 

 nearly confined to the margin of the segment. With only a 

 single specimen it cannot be determined whether there is a 

 Nova Scotian race, distinguished by the character indicated. 



XXVIII. — On the Geographical Races of Vipera ammodytes. 

 By G. A. BouLEXGEK, F.R.S. 



(Published by permission of the Trustees of the British Museiun.) 

 [Plate v.] 



On two previous occasions * I have briefly dealt with the 

 varieties of Vipera ammodytes^ and expressed my regret at 



* Proc. Zool. Soc. 1903, i. p. \^^, and Ann. & Mag. Nat. Hist. (7) xiv. 

 1904, p. 134. These papers have been entirely overlooked by Dr. E, 

 IScbrciJjer in hia sccoiid edition of the ' Ilorj^etologiu Europiea ' (i012j. 



