wheeler: the ants of borneo. 143 



Mayrian furrows; scutellum very convex; epinotum in profile strongly angu- 

 lar, both the base and declivity concave, the former shorter than the latter, 

 the two surfaces separated by a pronounced, subcircular margination or carina. 

 Petiole like that of the worker but with the three blunt teeth on the postero- 

 superior border much less prominent, the ventral surface with two strong 

 teeth, the anterior directed downward and forward, the posterior somewhat 

 longer and more slender, directed downward and backward. Postpetiole 

 broader than long, evenly and convexly rounded in front, strongly marked 

 off from the broader and very short gaster, the last segment of which terminates 

 in a long, stout, downwardly curved spine. GenitaUa deeply retracted. Legs 

 slender. 



Subopaque; postpetiole, gaster, and legs shining. Head very finely punc- 

 tate; thorax densely punctate, the pro- and mesonotum and mesopleurae 

 also with indistinct, scattered foveolae. Scutellum and epinotum irregularly 

 rugose, the declivity of the latter more finely, so that its surface is somewhat 

 shining. Petiole coarsely reticulate-rugose, its truncated posterior surface 

 finely rugulose. Postpetiole, gaster, and legs smooth, with fine piligerous 

 punctures. 



Hairs and pubescence as in the worker, but shorter. 



Head, postpetiole, and gaster castaneous; thorax and petiole black, neck 

 and discal portion of mesonotum red; antennae, palpi, and legs, including 

 the coxae, yellow, the tibiae streaked with fuscous or black. Wings clear yel- 

 lowish hyaline; pterostigma brown, veins yellow. 



A single specimen, which I have described in detail, because very 

 few Bothroponera males have been seen. 



*6. Pseudoponera amblyops (Emer}') 9 . 

 *7. Trapeziopelta breviloba, sp. nov. 

 Female. Length 5.8 mm. 



Head, excluding the mandibles, a little broader than long, slightly broader 

 behind than in front, with feebly rounded sides and feebly and broadly excised 

 occipital border. Eyes rather convex, longer than their distance from the 

 anterior corners of the head. Ocelli small and close together. Mandibles 

 distinctly shorter than the head, slender and terete at the base, dilated and 

 flattened apically, their inner borders with three separated teeth; /the most 

 basal merely a low, rounded convexity, the others stronger and decidedly 

 acute. Lobe of clypeus very short, rectangular, more than twice as broad as 

 long, its anterior border slightly concave. Oral border of clypeus with a 

 median, slender, truncated tooth. Frontal groove strongly impressed. An- 

 tenna] scapes not reaching to the posterior border of the head; funiculi with 

 distinctly 4-jointed club; joints 2-7 slightly broader than long; joints 8-10 

 onger than broad; terminal joint nearly as long as the three remaining joints 



