294 The Ohio Journal of Science [Vol. XX, No. 7, 



10. Bombus mixtus Cresson {B. oregonensis Ashmead). 

 Seattle, Wash., 10 ^ and 1 cf , May 25, 1919. Kodiak, 9 ^ 



and 3 &, Sept., 1917. Excursion Inlet, 1 9, May 31, 1919. 

 Yakutat, 2 9 , May 31, 1919. 



Dumoucheli group. 



11. Bombus californicus F. Smith {B. neglectulus Ashmead). 

 Seattle, Wash., 1 9, May 25, 1919. The species is also 



known from southern Alaska. 



Psithyrus Lepeletier. 

 Laboriosus group. 



1. Psithyrus insularis (F. Smith). 



Seattle, Wash., 2 9, May 25, 1919. Katmai, 1 9, July 

 28, 1917. 



2. Psithyrus consultus Franklin. 



Savonoski, 1 (f , July, 1919. As suggested by Franklin, this 

 is most probably the male of P. insularis. 



In addition to the foregoing, the following species of Bom- 

 bidce have been recorded from Alaska: 



Bombus kincaidii Cockerell {Psithyrus kodiakensis Ashmead; 

 Bombus gelidus Ashmead). 



B. strenuus Cresson {?B. frigidus Ashmead). 



B. polaris Curtis. Franklin regards Ashmead's Alaskan 

 records of this species as questionable; it has, however, again 

 been recorded from Alaska by F. A. Lutz (Bull. Amer. Mus. 

 Nat. Hist., XXXV, 1916, p. 520) and Sladen (1919, p. 27). 



B. arcticus Kirby. There are two queens of this from Point 

 Barrow (Stefanson Coll.) in the American Museum of Natural 

 History. 



B. edwardsii Cresson {B. nearticus Ashmead). 



B. flavifrons Cresson {B. alaskensis Ashmead; B. dimidiaUis 

 Ashmead). 



B. alboanalis Franklin {B. sitkensis Ashmead). 

 B. (Bombias) nevade?isis Cresson. 

 Psithyrus fernaldce Franklin. 

 P. tricolor Franklin. 



