1951] 
Gregg — Exotic Ants 
81 
toward the tips, the last three segments considerably en- 
larged, and each longer than broad, but not forming a club. 
Mandibles narrow, each with three apical teeth and one in- 
distinct denticle. 
Thorax long and narrow, gradually widening to the in- 
sertions of the forewings and tapering posteriorly from that 
point. Prothorax from above long and somewhat resem- 
bling a truncated isosceles triangle; mesothorax about as 
wide as long. Thorax in profile convex; pronotum flat but 
sloping upward to the mesonotum which is angled just be- 
hind the promesonotal suture; scutellum raised. Sides of 
thorax flat. Epinotum without distinct basal and declivi- 
ous faces, the entire dorsum sloping away rapidly from the 
metanotum to the articulation with the petiole. Petiole con- 
vex, low in front and rising gradually to a low broad node 
(no scale), whose posterior slope is concave; ventral sur- 
face smooth. From above, the petiole is rounded and almost 
oval in shape, though narrower in front and widening gradu- 
ally to the apex of the node. 
Gaster long, narrow, flat above, modified elliptical in 
