A438 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. Mesoépinotal 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. 
