478 bulletin: museum of comparative zoology. 



broader behind than in front, with feebly convex posterior and lateral 

 borders. Clypeus carinate its entire length, with the anterior border 

 angularly projecting. Mandibles 8-toothed. Frontal area triangular, 

 as long as broad. Frontal carinae strongly diverging. Antennae slen- 

 der, basal funicular joints longer and more slender than the apical joints. 

 Maxillary palpi rather short. Pro- and mesonotum not very convex, 

 mesoepinotal constriction rather shallow, base of epinotum convex, 

 declivity flat, very sloping, and forming a rounded obtuse angle with 

 the base. Petiole narrow, thick, with more convex anterior, and less 

 convex posterior surface and blunt border, which when seen from be- 

 hind is broadly rounded and not produced upward in the middle. 

 Gaster of the usual shape; legs rather slender. 



Opaque; mandibles, clypeus, and front of head slightly shining; 

 frontal area subopaque. Mandibles very finely and densely striated. 



Erect hairs very sparse, short, blunt, clavate, present on the front, 

 clypeus, ocellar region, gula, upper surface of the pro- meso- and epi- 

 notum, and gaster. Antennal scapes and legs without oblique or sub- 

 erect hairs. Pubescence grayish, sparse and fine on the head, thorax 

 and appendages, denser on the gaster and concealing the surface so 

 that this region appears gray. 



Head, thorax, and petiole bright red or orange red; gaster dark 

 brown with the base of the first segment and the anal region red or 

 yellow. In small specimens the posterodorsal portions of the head and 

 the dorsal portions of the thorax and petiole are more or less inf uscated. 

 Even in the largest workers the ocellar triangle is fuscous. 



Female. Length 4-5.5 mm. 



Head very much like that of the worker. Whole surface of body 

 smoother and a little more shining. Hairs much longer and more 

 abundant, present also on the posterolateral corners of the head. 

 Pubescence yellow, very fine but distinctly visible on the upper surface 

 of the head and thorax, and thick enough on the gaster to obscure the 

 shining surface. 



Reddish yellow throughout, only the eyes, mandibular teeth and 

 wing insertions black. Wings grayish hyaline, more infuscated towards 

 their bases. Veins and stigma pale brown. 



Male. Length 5.5-6 mm. 



(After Emery). Mandibles strongly dentate. Head short, broadest 

 through the eyes which are large, behind the eyes broadly convex. 

 Black; antennal funiculi usually brown, mandibles, legs, and genitalia 

 paler yellow, femora often daker, coxae brown. Wings pale grayish, 

 with dark veins. 



Host (Temporary). Probably F. schaufussi or one of its varieties. 



Type locality. — Virginia: (Th. Pergande). 



North Carolina: Black Mts., Swannanoa Valley (W^. Beutenmiiller). 



