174 WILLIAM MORTON WHEELER. 



as their distance from the anterior border of the head. Frontal 

 carinae very short. There are no scrobes. Antennal scapes 

 reaching to the posterior corners of the head. Thorax shaped 

 much as in the soldier but the promesonotal mass is smaller and 

 the humeral angles are less prominent, though the mesonotum is 

 distinctly angular, with perpendicularly descending posterior 

 surface. The epinotal spines are well developed but more erect 

 than in the soldier. Postpetiole transversely rectangular, nearly 

 i J times as broad as long and less than half again as broad as the 

 petiole, which is similar to that of the soldier. Gaster truncated 

 anteriorly. Legs as in the soldier. 



In sculpture, pilosity and color very similar to the soldier, 

 except that the head is merely densely and evenly punctate. The 

 tips of the mandibles and the f uniculi are paler and more brownish 

 yellow in some specimens. 



Male. Length nearly 2 mm. 



Slender; head, including the eyes, as long as broad, narrowed 

 behind, with straight sides and concave posterior border. Eyes 

 and ocelli large. Mandibles and clypeus small, the former 

 tridentate, the latter convex in the middle, with rounded anterior 

 border. Antennae 12-jointed; scape very small and slender, 

 scarcely longer than the swollen, ovoidal first funicular joint; 

 joints 2-6 about twice as long as broad; 7-10 somewhat longer, 

 the terminal joint slender and elongate. The funiculus tapers 

 gradually to its tip. Thorax broader than the head, the meso- 

 notum large, convex in front, as broad as long. Epinotum 

 convex, with subequal base and declivity, rounding into each 

 other. Petiole slender, parallel-sided, with very low and indistinct 

 node; postpetiole somewhat broader, campanulate, as long as 

 broad. Gaster and legs slender. 



Shining ; head subopaque and very finely and densely punctate ; 

 pronotum also finely punctate but more shining. 



Pilosity yellowish, similar to that of the soldier and worker but 

 shorter, especially on the legs, where the hairs are also more 

 reclinate. 



Yellowish brown; dorsal surface of body darker; head black; 

 mandibles, mouthparts, antennae, legs, insertions of wings and 

 genitalia, pale yellow. Wings hyaline, with colorless veins and 

 pterostigma. 



