HENRY J. FRANKLIN. 317 



ment always with yellow pile ; pile somewhat longer than that of the 

 females. 



Abdomen. — Dorsum colored much as in queen ; apical segment black, 

 but often with a noticeable amount of ferruginous hair on apical por- 

 tion. Venter largely clothed with yellow pile, the apical margin of the 

 apical segment fringed with ferruginous hairs. 



Genitalia.— Onter spatha (fig. 137) short and wide, its side margins 

 usually somewhat irregular ; anterior lateral projections rather narrow 

 and rounded at their ends ; ventral surface of apical portion with a 

 somewhat scattering tuft of rather long hairs on each side. Inner 

 spatha (fig. 142) somewhat variable ; lateral margins strongly and 

 rather evenly incurved ; posterior margin rather strongly curved for- 

 ward in the middle, making the apex distinctly, though not strongly, 

 bilobed ; an elongate fenestra on each side of the middle line of the 

 apical portion ; ventral surface of apical portion rather densely hairy 

 on each side and also, to a considerable extent, in the middle between 

 thefenestrse. Claspers (fig. 65) and sagittse, forthe mostpart, as already 

 described for the group ; the inner margin of each squama broadly 

 incurved ; the shafts of the sagittse bent outward somewhat in the 

 middle. 



Wings. — Usually somewhat lighter than those of the worker, dis- 

 tinctly lighter than those of the queen, subhyaline. 



Legs. — Coxae, trochanters and femora bearing much yellow pile ; 

 fore tibiae mostly black, but usually with a few ferruginous hairs near 

 their tips ; middle tibiae usually with a large amount of ferruginous 

 pile, especially on their posterior sides ; hind tibiae with outer faces 

 convex ; corbicular areas bare, except for a few short scattered hairs; 

 corbicular fringes mostly light ferruginous ; hind fringes of posterior 

 metatarsi rather short and mostly light colored. 



Dimensions. — Length : queen, 14 mm. to 17 mm. ; worker, 8 mm. 

 to 13 mm. ; male, 10 mm. to 13 mm. Spread of wings: queen, 31 

 mm. to 35 mm. ; worker, 17 mm. to 27 mm. ; male, 22 mm. to 27 

 mm. Width of abdomen at second segment: queen, 8^ mm. to 9 

 mm. ; worker, 4 mm. to 7^ mm. ; male, 5 mm. to 7 mm. 



Redescribed from numerous specimens of all the castes. 



Habitat. — I have records of this species from parts of the 

 United States as follows : Maine, New Hampshire, Vermont, 

 Massachusetts, Connecticut, New York, Pennsylvania (Jean- 

 nette), West Virginia, Wisconsin (Polk County and Grand 

 Rapids), Minnesota (Minneapolis, St. Paul and Lake Itasca), 

 South Dakota (Bigstone), North Dakota (Tower City). 

 My Canadian records are as follows : Prince Edward Island 

 (Hampton), Quebec (Montreal and Saguenay River),, On- 



TRANS. AM. ENT. SOC, XXXVIII. 



