WHEELER, NORTH AMERICAN ANTS 303 



Head, thorax and gaster very finely sbagreened, shining. 



Pilosity much as in the worlier ; pubescence shorter and much less con- 

 spicuous. 



Black ; moutbparts, funiculi, genitalia, tarsi and articulations of the legs 

 nud wings brownish or reddish. Wings colored like those of the female. 



This, the typical form of the subspecies vicinus, as defined by Emery, 

 is represented in my collection by specimens from the following localities : 



California: Alameda, Harris, Humboldt County and Felton, Santa 

 Cruz Mts. (J. C. Bradley) ; San Jacinto Mts., 6000 ft. (F. Grinnell, Jr.) ; 

 Mt. Lowe (5000 ft.) and Palmer's Canyon, near Claremont (Wheeler). 



Nevada: King's Canyon, Ormsby County (C. F. Baker). 



Oregon: Corvallis (Amer. Mus. Nat. Hist). 



Washington: Seattle and Almota (A. L. Melander) ; Friday Harbor 

 (T. Kincaid) ; Grand Coulee; Pullman (W. M. Mann). 



Idaho: Julietta and Moscow (J. M. Aldrich). 



New Mexico: Mera Chaco Canyon (Pepper). 



British America: Lardo, Kootenay Lake (J. C. Bradley). 



Emery cites this form from Descanso, Calif. Mayr mentions it from 

 Connecticut and Virginia, but this is evidently an error, probably trace- 

 able to incorrectly labeled specimens or to confounding the form with the 

 very similarly colored C. novehoracensis. 



C. vicinus and its varieties live in the soil under stones in rather dry, 

 sunny places. The eggs and young larvae are of a peculiar salmon-yellow 

 color. The sexual phases seem to occur in the nests at all times of the 

 year. 



2. C. maculatus vicinus var. plorabilis var. nov. 



Very similar to the typical vicinus in sculpture and pilosity, but differing in 

 color. The thorax, petiole and legs of the worker forms are deep red, the pro- 

 and mesonotum of the worker major black, the gaster entirely black, except 

 for the brown posterior segmental margins. 



The female is decidedly smaller than that of the typical form (12-13 mm.) 

 and black, with the exception of the antennal funiculi, pleurae, declivity of 

 epinotum and legs, which are dark red. 



The male is indistinguishable from that of the typical form. 



I have seen specimens of this variety from the following localities : 

 California: Pacific Grove (H. Heath). 

 Nevada: (Amer. Mus. Nat. Hist.). 



Washington : Pullman, Kiona, San Juan Island and Ellensburg 

 (W. M. Mann) ; Seattle. 



Idaho: Moscow (J. M. Aldrich). 



Apparently the small workers mentioned by Emery from Beckwith, 



