438 bulletin: museum of comparative zoology. 



flat anteriorly, narrowly impressed posteriorly; spines triangular, 

 the width at base greater than the height. Petiolar node twice as 

 broad as long, in profile triangular. Postpetiole one and a half times 

 as broad as long, narrowly rounded at sides. Gaster short, oval. 

 Legs very long and slender. 



Head shining; cheeks and front with widely separated rugae, which 

 extend only slightly posterior to the eyes; front and vertex with sparse, 

 distinct punctures. Mandibles sublucid, very coarsely and sparsely 

 punctured at base. Thorax, epinotum, petiole, and postpetiole with 

 sparse interrupted transverse rugae; the spaces between the rugae 

 shining. Gaster finely punctate, shining. Funiculus sparsely pubes- 

 cent, head, body, antennae, and legs with long hairs. 



Color ferruginous; anterior border of head and the mandibles 

 brownish red. Pile golden yellow. 



Worker. Length 5 mm. 



Form very long and slender. Head, excluding mandibles, much 

 longer than broad, strongly narrowed behind to form a distinct neck, 

 the posterior border of which is broadly expanded and elevated. 

 Mandibles long, acuminate at tip, with a long subapical tooth and 

 several shorter teeth. Clypeus depressed in front, the border strongly 

 concave at middle. Frontal carinae subparallel, extending to opposite 

 the anterior border of eyes. Eyes large and convex, situated at sides 

 of front, anterior to the middle of head. Antennae very long and 

 slender, the scapes about twice as long as the head including the neck; 

 funicular joints similar to those of worker. Pronotum longer than 

 broad, strongly narrowed in front; broadest behind middle; the 

 pleurae extended behind into small elongate tubercles. Promesonotal 

 suture strongly impressed. Mesonotum longer than broad, little 

 convex. Mesoepinotal impression broad and deep. Base of epino- 

 tum distinctly longer than the declivity, rounded above; spines very 

 short, triangular, erect, located closer together than their distance 

 from the sides. Petiolar node one and a half times as long as broad, 

 triangular in profile. Postpetiole longer than broad, with rounded 

 sides. Gaster oval. Legs very long and slender. 



Sublucid. Cheeks with distinct, widely separated rugae. Front 

 and vertex sparsely punctate. Mandibles sublucid, finely punctate. 

 Pronotum in front with very sparse, transverse rugae, the rest of 

 thorax and the abdomen finely punctate. Pile similar to that of 

 soldier, but more sparse. 



Color light ferruginous, anterior border of head, the mandibles, 

 and the antennal club darker. 



