^Scientific Results of the Katmai Expeditions of the 

 National Geographic Society. 



XIII. BEES AND WASPS. 



J. Bequaert. 



Through the kindness of Prof. Jas. S. Hine, I have been 

 given the opportunity to examine the Aculeate Hymenoptera 

 -obtained by him during his two trips to Alaska in the summers 

 of 1917 and 1919. The following list of the species collected 

 includes also a few specimens taken at Seattle, Wash. Mr. 

 Viereck has kindly confirmed the identification of Andreiia 

 Jrigida. 



A general account of the Hymenoptera of Alaska was given 

 by Ashmead in 1902.* Some additional data has been pub- 

 lished since, the most important contribution in this respect 

 being F. W. L. Sladen's list of the wasps and bees obtained by 

 the Canadian Arctic Expedition. f 



APOIDEA. 



The bee fauna of Alaska is exceptionally rich in bumble bees, 

 comprising as many as 19 species of Bo^nbiis and 4 of Psithyrus. 

 It seems rather strange that only one other bee, Andrena 

 Jrigida Sm., is thus far known from that region. 



BOMBID.^. 



I have followed in the main Franklin's arrangement in his 

 Monograph of this family (1913), but have added for con- 

 venience the synonyms used by Ashmead in 1902. 



*W. A. Ashmead. Papers from the Harriman Alaska Expedition, XXVIII. 

 Hymenoptera. Proc. Wash. Ac. vSci., IV, 1902, pp. 117-274, Pis. IX-XI. 



tReport of the Canadian Arctic E.xpedition, 1913-18. Ill, Part G, 1919, 

 pp. 26-35. 



2!)2 



