COLLECTED AT BACUIAN, KAISAA, ETC. 103 



Worker. Length 5 lines. Ferruginous ; the head very shghtly nar- 

 rowed posteriorly ; the hinder portion of the sulcation of the head in 

 front with divergent striaj opposite, and before the eyes it is smooth 

 and shining ; from the sulcation to the posterior margin of the head 

 runs a deeply-impressed channel ; the head is faintly striated obliquely 

 behind the sulcation, there is also an oblique depression on each side ; 

 the mandibles with a row of short teeth on their inner margin, and 

 terminating in two incurved long, stout, blunt teeth. Thorax very 

 delicately and closely striated transversely. Abdomen smooth and 

 shining ; the node of the petiole with a long, acute, upright spine, 



Hab. Dory. 



3. Odontomachus nigriceps. O. ferrugineus ; capite nigro, supra 

 longitudinaliter striato ; lateribus la^vibus nitidis, thorace transversim 

 striato. 



Worker. Length 6} lines. Ferruginous ; the head black, smooth and 

 shining; the anterior portion longitudinally striated, the striation 

 terminating at the oblique smooth ridges behind the eyes, which meet 

 in the middle of the head, whence a deep longitudinal channel runs 

 to the hinder margin ; the antennae and mandibles ferruginous, the 

 latter denticulate on their inner margin, and terminating in two long 

 incurved blunt teeth, which have a minute tooth in the middle of their 

 fork. The prothorax smooth and shining, with a slight transverse 

 striation on its neck in front ; the meso- and mctathorax finely striated 

 transversely. The node of the peduncle unispinose, and, as well as 

 the abdomen, smooth and shining, (PI. L fig. 9,) 



Hab, Dory, 



Gen. PoNEEA, Latr. 



1 , Ponera laeviceps. Smith, Proc. Linn. Soc. ii, 69. 

 Hab. Bachian; Borneo. 



2, PoNERA SOLITARIA. P. pallidc tcstacca ; antennis elongatis; alis 

 hyalinis ; capite postice angustato ; abdominis nodo conico, 



Male. Length 4f lines. Pale rufo-testaceous, smooth and shiniug ; 

 antennse longer than the body ; the legs elongate ; the posterior tarsi 

 longer than the tibiae and femora ; the wings hyaline, and brilliantly 

 iridescent, the nervures ferruginous ; the node of the peduncle conical j 

 the abdomen constricted between the first and second segments, 



Hab. Bachian. 



3, Ponera vagans. P. nigra ; capite, thorace, abdominisque basi 

 striatis ; antennis, capite antice, man(Ubulis pedibusque ferrugineis. 



Worker. Length 4 lines. Black : the clypeus, mandibles, antennae, and 

 legs, ferruginous ; the head finely striated longitudinally ; eyes promi- 

 nent and ovate. The prothorax with a rugose circular striation ; the 

 mctathorax with an even oblique sti-iation. The node of the peduncle 

 has an even curved striation, and two acute spines behind ; the basal 

 segment of the abdomen with an irregular fine curved striation ; the 



