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Feb. ar] 
1916 
WHEELER — ANTS FROM BORNEO AND LUZON 11 
its median lobe projecting, straight in the middle, with a blunt tooth-like 
projection on each side, not separated behind by a suture from the head. 
Frontal carinze overarching well-developed scrobes for the accommodation 
of the antenne as in the other species of the genus, continued anteriorly 
into sharp lateral expansions of the clypeus. Though deep above, the 
scrobes become broad and much shallower ventrally, where they pass 
over into the cheeks without ventral bounding ridges. Antenne inserted 
under the dorsal borders of the scrobes at about their middle, much flat- 
tened, 11-jointed; the scape very short, elliptical, a little more than twice 
as long as broad and extending only to about the middle of the dorsal orbit. 
First funicular joint a little more than one and one-half times as long as 
broad; joints 2-6 much broader than long, seventh joint relatively longer, 
joints 8-10 forming a very distinct club, the eighth and ninth subequal and 
each nearly as long as broad, together as long as the broadly elliptical 
terminal joint. Thorax narrower than the head, very long, nearly three 
times as long as high, broadest in the region of the insertion of the fore 
wings, its sides submarginate above; pronotum with subangular humeri, 
broader than long, separated by a pronounced suture from the mesonotum, 
which together with the scutellum is broadly elliptical and longer than 
broad; epinotum subcuboidal, with parallel sides, longer than broad, its 
base in profile feebly and evenly convex, longer than the perpendicular 
and inferiorly concave declivity into which it passes through a rounded 
but abrupt angle. Petiole seen from above narrower than the epinotum, 
a little longer than broad, broader behind than in front, with marginate an- 
terior, lateral and posterior borders, the anterior and lateral borders straight, 
the posterior deeply and somewhat angularly excised in the middle, so that 
the segment has two large, flat, posteriorly directed tooth-like projections; 
in profile the petiole is anvil-shaped, fully one and one half times as high 
as long, with the sides decidedly concave as are also the anterior and 
posterior surfaces. Its upper surface is horizontal, its ventral surface with 
two large, blunt, angular projections. Postpetiole from above transversely 
elliptical, broader than the petiole and nearly twice as broad as long, its 
anterior and lateral borders convex and evenly rounded, its anterior and 
lateral surfaces abrupt, its posterior border straight; in profile it is sub- 
triangular, with straight dorsal and short ventral surface, provided with a 
blunt projection in front and a small tooth behind. Gaster rather small, 
suboblong, with rounded anterior border and feebly convex, subparallel 
sides. Sting well developed but slender. Legs short, the femora broad 
and elliptical, distinctly compressed. ‘Tips of tibie and metatarsi of the 
middle and hind legs with spurs and a circlet of teeth, much as in the other 
species of the genus. Wings rather short, with closed marginal cell, a 
single cubital and a well-developed discal cell. Apterostigma rather large. 
Extremely smooth and shining throughout, with sparse, very inconspicu- 
ous, piligerous punctures on the upper surface; posterior portion of anten- 
nal scrobes densely, longitudinally striated. 
