96 PSYCHE [June. 



Thorax robust ; pronotal angles obtusely rounded; mesoepinotal constriction rather deep; 

 epinotal declivity concave ; spines robust, pointed, longer than broad at the base and farther 

 apart than long; slightly curved downwards at their tips. Petiole pedunculate, seen from 

 above constricted near the middle; in profile the dorsal surface is concave in front, convex 

 on the anterior surface of the node, posterior declivity straight and abrupt ; upper margin of 

 node distinctly concave in the middle when seen from behind. Postpetiole transversely 

 elliptical from above, nearly twice as broad as long and fully twice as broad as the petiole, 

 with distinct but not very prominent lateral angles near the middle ; in profile the dorsal 

 surface is very convex, the ventral surface much more flattened. Gaster elongate elliptical, 

 rather large. Legs long, femora conspicuously incrassated in the middle, the tibiae towards 

 their distal ends. 



Mandibles smooth and shining, with a few scattered piligerous punctures and some 

 pronounced striae on the outer basal margin. Clypeus shining in the middle, more opaque 

 at the sides which are coarsely longitudinally rugose. There is a prominent median ruga. 

 Frontal area shining, with a median carinula. Head subopaque covered with rather coarse, 

 parallel, longitudinal rugae over the anterior three quarters, posterior fourth smooth and 

 shining, with a few scattered and shallow foveolae. Spaces between the rugae filled with 

 minor reticulations which extend back somewhat bej'ond the ends of the main rugae on to 

 the smooth occipital surface. Thorax subopaque, pro- and mesonotum more shining, 

 pronotum and sides of mesonotum with several sharp transverse rOgae. Mesopleurae and 

 whole epinotum coarsely punctate rugulose. Petiole and postpetiole opaque, punctate 

 rugulose throughout. Gaster hardly shining, as its surface is finely reticulate and irregularly 

 and rather densely punctate ; only the basal portions of the segments where they are over- 

 lapped by preceding segments when the gaster is not distended, are smooth and shining. 

 Antennae and legs smooth and shining, scape, tibiae, and femora with scattered piligerous 

 punctures. 



Whole insect covered with rather long, coarse, yellow hairs, which are erect or suberect 

 on the body, antennal scape, and legs, but shorter and less conspicuous on the funiculus and 

 tarsi. 



Rich ferruginous red, thorax and petiole somewhat darker, edges of mandibular blades, 

 anterior border of clypeus, epinotal spines and gaster black, the posterior edges of the gastric 

 segments yellowish, the basal half of the first gastric segment sometimes ferruginous. 

 Worker. Length 4-4.5 mm. 



Head, excluding the mandibles, as broad as long; posterior angles rounded. Mandibles 

 Avith two prominent apical teeth and the remainder of their blades finely crenulate. Clypeus 

 short, its anterior border straight, faintly and sinuately excised in the middle, posterior 

 median surface strongly convex. Frontal area triangular, rather indistinct. Antennae 

 slender, scape slightly thickened distally, extending beyond the posterior corner of the head 

 to a distance about one third of its length; funiculus with all its joints distinctly longer 

 than broad, joints 3-7 subequal, fully twice as long as broad ; club appearing 4-jointed as 

 the 8th joint forms a transition between the basal and terminal joints. Thorax much like 

 that of the soldier, but with less robust and narrower prothorax ; epinotal spines more 

 slender, straight and pointed. Petiole slender, more than twice as long as broad, node 

 rounded, hardly transverse. Postpetiole as long as broad, campanulate, nearly twice as 

 broad as the petiole. Gaster and legs of the usual shape. 



Smooth and shining; mandibles, head, and gaster with sparse piligerous punctures; 

 head in front of eyes longitudinally rugose as is also the region between and next to the 



