Theodore ii. prison 317 



tera collected in West Greenland. In this paper B. nivalis 

 (Dahlbom), B. hyperboreus (Schonherr), B. derhatneUu.s (Illiger) 

 and Bremus species are recorded. A careful study of tliese speci- 

 mens establishes the fact that all of them belong to two species, 

 hyperboreus and polari.s (Curtis). Lutz and Cockerell (1921) 

 wrongly placed under B. Jrigidufi (F. Smith) Fox's record for 

 derhameUus from Greenland. Franklin undoubtedly over- 

 looked this record as he makes no mention of the same. Ac- 

 cordingly, the specific name derhameUus, which apphes to a 

 European species not a member of our fauna, can be stricken 

 from our American list. The record of nivalis by Fox was 

 doubtfully considered by Franklin, in 1912, as pertaining to 

 kirbyellus, but all of the specimens studied by Fox belong to 

 polaris with t.he exception of the specimens of hyperboreus. 

 The results of my study of these Greenland species is quite in 

 keeping with my opinion that only two species of bumblebees 

 occur in Greenland, namely, hyperboreus and polaris. The 

 European references to kirbyellus as present in Greenland prob- 

 ably all refer to polaris. Whether the form w^e call kirbyellus 

 trom the northern regions and high altitudes, and which has a 

 more westerly distribution than polaris, is identical with the 

 species listed by the same name in Siberia and northern Europe 

 remains for future solution. 



Bremus edwardsii (Cresson) and bifarius (Cresson) 



In his monograph of the bumblebees, in 1912, Franklin placed 

 B. bifarius (Cresson) in the synonymy of B. edwardsii (Cresson). 

 A thorough study of the lectotype worker of edwardsii from 

 California, as well as several workers and allotypes from the 

 same locality, prove this to be the form Franklin described as 

 new under the name of B. fernaldi. The name edwardsii should 

 therefore be the name used for the species redescribed by Frank- 

 lin, as it has priority. Likewise, because of this change, the 

 name bifarius must be adopted for the species Franklin lists as 

 edwardsii. 



Several characters are present in the lectotype worker of 

 edwardsii which prohibit it from being considered the same as 

 Cresson's type of bifaiius. The ])()sterior border of the ])lack 

 l)and Ix'tween the wings is straight. \\w corbicular fringes are 

 black, Ihe malar space is i)ro])ortioiially longer than in bifarius, 



TKAXS. AM. KNT. 80C., XLVUI. 



