HENRY J. FRANKLIN. 327 



Male. Head. — Shaped like that of queen ; coloration of pile much 

 like that of queen, but often with considerable yellow hair on the sides 

 behind the eyes. Labrum like that of affinis male; malar space 

 between one-fifth and one-fourth as long as the eye ; clypeus usually 

 well covered up with pile ; fifth antennal segment distinctly longer 

 than third, third distinctly longer than fourth. 



Thorax. — Coloration of pile much as in queen, but usually with some 

 yellow pile on the mesopleura below the level of the bases of the wings 

 and with a distinct touch of yellow on their extreme lower part, next 

 to the bases of the legs. 



Abdomen. — Coloration of pile much like that of queen, but the fifth 

 dorsal segment often with considerable yellow on the sides and along 

 the apical margin and the venter usually bearing light hair for the 

 most part. 



Genitalia. — Outer spatha quite variable, but usually about like that 

 of B. vagans F. Sm. (fig. 131). Inner spatha variable, sometimes 

 with two and sometimes with no fenestrae, usually shaped about like 

 that of B. ternaritis Say (fig. 142). Branches of claspers with very 

 wide apices (as seen from above) , each extending inward in a very 

 strong and rounded or very slightly pointed projection. Shafts of 

 sagittse bent outward noticeably at about the middle. Genitalia as a 

 whole about like those of B. ternarius (fig. 65), but with squama 

 much wider toward the apex, broadly rounded at the end and not so 

 strongly incurved on the inner side. 



Wings. — Distinctly lighter, as a rule, than either those of the queen 

 or worker ; as light in the veined area as beyond it. 



Legs. — Coxae black ; trochanters often all black, but usually with a 

 more or less strong sprinkling of light hairs ; femora often all black 

 but as often with more or less light pile on their basal part ; fore 

 and middle tibiae and outer faces of hind tibiae all black. Outer faces 

 of hind tibiae convex and very scantily hairy in the middle portion 

 toward the apex, but actually bare on only a very small portion. Poste- 

 rior metatarsi bearing only short spines and pubescence, except for a 

 •posterior fringe of moderately long hairs. 



Dimensions. — Length: queen, 14 mm. to 19 mm.; worker, 9 mm. 

 to 14 mm. ; male, 10 mm. to 14 mm. Spread of wings : queen, 31 

 mm. to 42 mm. ; worker, 19 mm. to 31 mm. ; male, 23 mm. to 30 mm. 

 Width of abdomen at second segment : queen, 8 mm. to 11 mm. ; 

 worker, 5 mm. to 8 mm. ; male, 5 mm. to 7 mm. 



The color characters of this species are very constant. 



Redescribed from a large number of specimens of each 

 sex. 



Habitat. — I have records of this handsome species from 

 California, Oregon, Washington and Ormsby County in ex- 



TRANS. AM. KNT. SOC. , XXXVIII. 



