MANN: THE ANTS OF BRAZIL. 



433 



in the form of a blunt cone. Promesonotal suture basally discerni- 

 ble. Epinotum at base strongly, broadly impressed for its entire 

 length, the spines short, triangular and erect. Petiole thick, the node 

 as deep as thick, from above one and a half times as long as broad; 

 postpetiole from above transverse, narrowly rounded at sides. Gaster 

 oval, short. Legs moderately long. 



Sublucid. Mandibles shining, with sparse fine punctures at base. 

 Front of head and cheeks with strong parallel striae, which become 

 confused and disappear toward the vertex, where they are replaced 

 by dense granulose punctation; this granulation extends forward, 

 outward from the frontal carinae to the cheeks. Clypeus strongly, 

 but more sparsely striate and shining. On the front and cheeks the 

 spaces between the striae are smooth and shining; the occiput is very 

 shining. Thorax and epinotum granulosely punctate. Node of 

 petiole and postpetiole and base of first gastric segment with sparse, 

 more shallow punctures ; rest of gaster smooth and shining. 



Head, thorax, and abdomen with long hairs, which are most abun- 

 dant on the gaster. Sides of head in front sparsely pilose; antennae 

 and legs with semierect hairs. 



Worker. Length L5 mm. 



Head, excluding mandibles, a little longer than broad, with slightly 

 convex sides, broadly rounded occipital corners, and very slightly, 

 narrowly concave border. Mandibles long, slender, the blades mi- 

 nutely denticulate. Clypeus convex, the anterior border rounded. 

 Frontal carinae short, parallel. Antennal scapes surpassing the occi- 

 pital corners by about one sixth of their length. Eyes large and con- 

 vex, located at middle of sides of head. Thorax in profile rather low, 

 evenly rounded. Promesonotal suture not discernible. Mesoepinotal 

 suture deeply impressed. Epinotum with equal base and declivity, 

 the former depressed; spines very short, triangular. Petiole and post- 

 petiole similar to those of worker. 



Head, thorax, and epinotum subopaque; coarsely, densely granu- 

 lose; cheeks with a few coarse striae. Petiolar node punctate; post- 

 petiole and gaster smooth and shining. Head and body with sparse, 

 fine hairs. 



Color testaceous. 



Female. Length 4 mm. 



Head, excluding mandibles a little longer than broad, slightly 

 narrowed in front, with feebly convex sides, shallowly excavated 

 border. Mandibles and clypeus as in soldier. Antennal scapes 

 extending three fourths the distance to occipital corners. Eyes large 



