48 bulletin: museum of comparative zoology. 



has the same shape as the postpetiole but is somewhat larger. Terminal 

 gastric segments small. Pygidium minutely and rather bluntly spinulate 

 on the sides. Sting well-developed. Legs short and robust, hind coxae 

 without a lamelliform enlargement at the tip on the inner side. 



Shining; head, thorax, petiole, and postpetiole evenly covered with sparse, 

 coarse umbilicate, piligerous punctures or foveolae, excepting the middorsal 

 portion of the thorax, which is smooth and very shining. Gaster sparsely 

 punctate, more finely than the more anterior regions, legs and scapes with 

 sparser, finer punctures. • 



Hairs pale yellow, sparse, erect, bristly, of uneven length, less numerous on 

 the appendages than on the body. Pubescence absent, except on the funiculi. 



Castaneous; mandibles, antennae, pygidium, sting, and legs, excluding the 

 coxae, red. 



Described from a single specimen sent me by Mr. Horace Donis- 

 thorpe. It was taken by Mr. G. E. Bryant on Mt. Matang in West 

 Sarawak. 



This species has the appearance of a Syscia on account of its small 

 size and the structvire of the thorax and abdomen, but the antennae 

 are 12-jointed as in Cerapachys sens. str. It is allied to C. dohertyi 

 Emery and parvula Emery, but both of these forms are decidedly 

 larger and have the petiole and postpetiole broader than long. 



5. Phyracaces pubescens Emery. 



Phyracaces puhescens Emery, Rend. R. accad. sci. Bologna, 1901, p. 26, 9 ; 

 Emery, Gen. Ins. Ponerinae, 1911, p. 11, 9. 



Type-localiiy : Pulo Laut, Borneo (W. Doherty). 



*6. Phyracaces hewitti, sp. nov. 



Worker. Length 3.5 mm. 



Head a little longer than broad, scarcely broader behind than in front, with 

 feebly rounded sides, broadly excavated posterior border and sharp posterior 

 corners, both strongly marginate. In profile the dorsal surface is moderately 

 convex, subtruncate behind, the gular surface feebly convex. Eyes rather 

 large, feebly convex, distinctly in front of the middle of the head. Mandibles 

 triangular, strongly bent at the base, with nearly straight external and in- 

 distinctly denticulate apical borders. Frontal carinae approximated, erect, 

 rounded, united but not truncated behind. Cheeks with a short, strong 

 carina, terminating in front in an acute, rectangular tooth. Antennal scapes 



