COLLECTED IN BORNEO, ETC. 69 



stigma brown ; the legs pale testaceous. Abdomen smooth and 

 shining, with thin scattered long pale pubescence, most dense towards 

 the apex ; a deep strangulation between, the first and second segments ; 

 the node incrassate, coarsely rugose, rounded in front and above, 

 truncate behind ; beneath furnished with two short teeth. 

 Hab. Borneo (Sarawak). 



11. Ponera diminuta. P. nigra; vertice delicatule curvato-striato ; 

 pedibus rufo-piceis ; abdomine laevigata nitido squama quadrata. 



Worker. Length 3 lines. Black : the mandibles, and the extreme 

 base of the scape, ferruginous ; the flagellum fusco-ferruginous ; the 

 head elongate, narrowed behind, delicately striated ; the striae curved 

 transversely on the vertex. Thorax elongate, produced into a neck 

 anteriorly; swollen in front, compressed in the middle, and again 

 widened to the apex, which is obliquely truncated ; the truncatiou 

 with a few deep transverse striae ; the thorax above with short irre- 

 gular scratches or abbreviated strise ; the legs elongate, rufo-piceous, 

 the tarsi pale. Abdomen : the scale, viewed laterally, is quadrate ; 

 above slightly narrowed in front, and truncated before and behind; 

 the first segment rounded at the base and constricted at the apex, 

 the second segment narrowed at the base ; the abdomen smooth and 

 shining, with the apical margins of the segments, and the apex, rufo- 

 piceous. 



Hab. Borneo (Sarawak). 



This species is nearly an exact representative in form, on a reduced scale, 

 of the P. tarsata. 



12. Ponera pompiloides. P. nigra, Pompilum simulans; thorace 

 elongato-ovato ; abdomine elongato nodo conico. 



Male. Length 3 lines. Black : antennas elongate, and finely pubes- 

 cent. Thorax in front and behind obscurely ferruginous ; the wings 

 subhyaline, the nervures pale testaceous, the stigma brown ; the apex 

 of the coxae, and the base of the femora, rufo-piceous; the apical 

 joints of the tarsi pale ferruginous. Abdomen elongate, with a 

 scattered pale downy pubescence ; the apical margin of the first seg- 

 ment slightly constricted ; the node conical and rufo-piceous. 



Hab. Borneo (Sarawak). 



13. Ponera LiEviCEPS. P. nigra ; capite elongato laevi nitido ; thorace 

 abdomineque laevigatis nitidis ; tarsis pallidis ferrugineis. 



Worker. Length 3 lines. Black, smooth and shining : a few striae on 

 the face on each side of the clypeus; the latter triangular, with a 

 central raised longitudinal carina; a longitudinal impressed line runs 

 from the insertion of the antennae half-way towards the posterior 

 margin of the vertex. Thorax : in front forming a short neck, be- 

 hind which it is swollen ; from thence it is much narrowed and com- 

 pressed ; the apex oblique and transversely rugose ; the tarsi pale 



