wheeler: ants of the genus formica. 537 



Clypeus not projecting but with its anterior border truncated 

 or even slightly sinuate in the middle. Resembling the worker in 

 sculpture and pilosity, the hairs, however, longer and more pointed, 

 especially on the gaster. Head, thorax, petiole, and gaster black, or 

 more rarely dark brown; mandibles, clypeus, cheeks, antennae, and 

 legs deep red. In some specimens the antennae and legs are more 

 yellowish and in some the thorax is rich chestnut-brown, clouded 

 with black. Mesonotum and scutellum usually smoother and more 

 shining than the pronotum, pleurae, and epinotum. Wings colorless, 

 with pale brown veins and scarcely darker stigma. 



Male. Length 6-7.5 mm. 



Mandibles rather broad, edentate. Head broader than long, very 

 broadly rounded behind, strongly narrowed in front, with large eyes 

 and prominent ocelli. Clypeus indistinctly carinate, with rounded 

 anterior border. Thorax and gaster slender. Petiole thick and broad, 

 its upper border very blunt, broadly rounded and entire when seen 

 from behind. Genitalia slender; stipes narrow and rather pointed, 

 extending a considerable distance beyond the volsellae and sagittae. 



Body subopaque; gaster somewhat shining; head finely, thorax 

 more coarsely punctate; frontal area opaque. 



Hairs gray, erect, abundant on the upper surface of the head, gula, 

 thoracic dorsum, and mesopleurae, slightly less abundant on the petiole 

 and gaster. Pubescence gray, long, moderately dense on the body, 

 very fine and denser on the appendages. 



Black; antennae and gaster dark brown ; genitalia and legs yellow; 

 middle portions of femora strongly, genital appendages more feebly 

 infuscated. Wings colorless as in the female, with brown veins and 

 stigma. 



Type locality. — Pennsylvania; Beatty, (P. J. Schmitt). 



New Jersey: Paterson (Wheeler). 



New York: Kiamesha (C. T. Brues); Niagara Falls; Ithaca 

 (Cornell Univ. Coll.). 



Connecticut: Kent, Salisbury (W. E. Britton); Norfolk, Cole- 

 brook (Wheeler). 



Massachusetts: Essex County (G. B. King); Chestnut Hill, 

 Forest Hills (Wheeler). 



New Hampshire: White Mountains (W. F. Fiske). 



Maryland: (Theo. Pergande). 



North Carolina: Gray Beard Mount, Blue Ridge (W. Beuten- 

 miiller). 



Illinois: x\lgonquin (W. A. Nason). 



S. Dakota: Hill City (Th. Pergande). 



Montana: Elkhorn, Nigger Hill (W. M. Mann). 



