HENRY J. FRANKLIN. 371 



two males from Metlakatla, British Columbia. Prof. Cockerell also 

 records three females of this form from Calgary, Alberta. 



Color Variant 3. — Queen and worker like the typical females, but 

 with a small amount of ferruginous pile on the middle of the second 

 dorsal abdominal segment. Several specimens from British Columbia 

 and Montana. 



Habitat. — I have records of this species from Alaska 

 (Eagle, Sitka, Fox Point, Metlakatla, Fort Yukon, Juneau), 

 British Columbia (including Vancouver), Alberta (St. Albert 

 and Calgary), Washington, Idaho, Montana, Utah, Colorado 

 and New Mexico (Beulah). It is probably also present in 

 parts of Oregon, Wyoming, California and Nevada. It is 

 mainly a Boreal form, but it probably runs over into the 

 Transition Zone considerably. It seems to be a common 

 species throughout a considerable portion of its habitat. 

 What are its northern and southern limits and its eastern 

 limits in Canada ? Cresson states that some of the type 

 specimens came from Hudson Bay Territory and Kansas. 

 I consider that at least the latter record is erroneous. I 

 also think that the record " one male, three workers, Mon- 

 treal," given by Bowles, is questionable. 



This species is very closely allied to both B. pleuralis and 

 B. centralis. It may be easily distinguished from both by 

 means of the different coloration of the dorsum of its thorax 

 and from centralis by the somewhat longer malar space of its 

 females. It seems not impossible that extensive collecting 

 may show that flavifrons and pleuralis should really be con- 

 sidered subspecies of the same species. I have been unable 

 to decide whether the original description of B. praticolus 

 referred to this species or to the color variant of pleuralis. 

 Col. Bingham was unable to definitely locate the type of 

 praticolus^ in the collection of the British Museum, for me. It 

 is probably in that collection, however, though it may have 

 lost its identity. 



Bonibus (Boiiibus) centralis Cress. 

 Bombus centralis Cresson, Proc. Ent. Soc. Phila., Ill, 1864, p. 41, n. 5. 

 " juxtus Cresson, Proc. Acad. Nat. Sci. Phila., 1878, p. 187. 

 " centralis Cresson, Trans. Amer. Ent. Soc, VII, 1879, p. 231. 

 (Catal.). 



TRANS. AM. ENT. SOC, XXXVIII. 



