444 AMERICAN HYMENOPTERA. 



Male Color Variant 8. — Like Male Color Variant 1, but with the third 

 dorsal abdominal segment black instead of ferruginous, and the pile 

 on the apical dorsal segments more whitish. A few specimens, from 

 Arizona, California and Montana. 



Male Color Variant 9. — Like Male Color Variant 8, but with the 

 fourth and seventh dorsal abdominal segments black. A few speci- 

 mens from Montana. 



Habitat. — I have records of this species from different 

 parts of the United States as follows : Washington, Oregon, 

 California, Nevada, Arizona, Utah, Montana, Wyoming, 

 Colorado, New Mexico, Kansas, Nebraska, South Dakota, 

 Minnesota (one c? collected at St. Paul), Wisconsin, Michi- 

 gan, New York, Vermont (Bridport) and a doubtful one 

 from Tennessee. I also have the following records from 

 Canada : Quebec, Ontario, Manitoba, the old territory of 

 Saskatchewan (Radisson), Alberta (Calgary), the old terri- 

 tory of Assiniboia (Regina) and British Columbia. My 

 most southern records are Mescalero, New Mexico and south- 

 ern Arizona. What are its northern limits, also its southern 

 limits in the East and in the West ? It is a rare species in 

 the eastern part of its range, and appears to reach its maxi- 

 mum abundance in the Rocky Mountain region of the north- 

 western United States, where it is common. It may range 

 down the Appalachian Mountain system, but this is exceed- 

 ingly doubtful, as I have only the single Tennessee record 

 south of New York. Does it range through northern New 

 England and New Brunswick ? It belongs mainly to the 

 Canadian and Transition Zones, but runs over somewhat 

 into the Upper Austral. 



Nests. — One of the nests taken at Bridport, Vt., by F. W. 

 Putnam and considered by him and by Dr. Packard as that 

 of B. ternarius was really a nest of this species. It con- 

 tained one queen and twenty-four workers, instead of twenty- 

 three specimens as stated by Dr. Packard. These specimens 

 have been all kept together in the collection of the Museum 

 of Comparative Zoology at Cambridge. This is apparently 

 the nest, with three specimens lacking, which Putnam (cf. 

 Proc. Essex Inst., IV, p. 99) refers to as having been found 

 "under the clapboards of a house," as the true ternarius Say 



