550 bulletin: museum of comparative zoology. 



in front than behind, with convex and rounded posterior border 

 and straight sides. Eyes moderateh^ large, convex. Clypeus with 

 broadly rounded and somewhat projecting, entire, anterior border, 

 strongly carinate, the carina angular in profile. Frontal carinae paral- 

 lel. Maxillary palpi very long, 6-jointed. Antennae very long and 

 slender, the scapes straight at the base, funiculi not thickened towards 

 their tips, the median joints more than H times as long as broad. 

 Thorax, especially the pro- and mesonotum, long, these portions not 

 very convex, evenly rounded; mesoepinotal constriction not deep; 

 epinotum low and evenly rounded, without distinct base and decliv- 

 ity. Petiole narrow, rather thick, its anterior and posterior surfaces 

 convex, its margin blunt, rounded and entire when seen from behind 

 or only slightly impressed in the middle. Gaster elongate elliptical; 

 legs long. 



Whole body shining and very finely and superficially shagreened; 

 mandibles finely striated and coarsely punctate. 



Hairs yellowish, sparse, confined to the gaster and the upper surface 

 of the head; absent on the gula, thorax, and petiole; blunt and coarse 

 on the gaster. Legs with only the graduated series of bristles on 

 the flexor surfaces of the tibiae. Pubescence fine and rather dilute, 

 visible on the gaster and legs. 



Pale yellow; mandibles reddish; gaster often with a brownish tint; 

 sometimes the whole head is reddish. 



Female. Length 7-8 mm. 



Rather stout; head nearly as broad as long, subrectangular, a little 

 narrower than the thorax. Border of clypeus more flattened than in 

 the worker, petiole more compressed anteroposteriorly, with flat pos- 

 terior surface. 



Sculpture and pilosity as in the worker, but the body, especially 

 the head and mesonotum, more reddish. Wings colorless, with pale 

 brown veins and stigma. 



Male. (After Emery). 



Characterized by its pale color. The whole body is yellow, the 

 head and the gaster behind somewhat darker. Vertex and tips of 

 funiculi brown; only the eyes black. Head much smaller than in the 

 other subspecies. The eyes too are somewhat smaller. 



District of Columbia: Washington (Th. Pergande). 



Kansas: Osage City (A. C. Burrill). 



Georgia: Tallulah Falls, Marietta, Ducker, Clayton, Clarkesville 

 (J. C. Bradley). 



New Jersey: Fort Lee (W. Beutenmiiller). 



New York: Bronxville (Wheeler). 



I have not seen the male of this tlie typical form of the species but 

 the male of the var. sucdnea described below is probably very similar. 



