COLLECTEB AT CELEBFS. 69 



Gen. Tapinoma, Foerster. 



1. Tapinoma thoracica. T. nigra, subnitida; capite abdomineque 

 glabris ; thorace rugoso ; antennis pedibusque ferrugineis. 



Worker. Length 2 lines. Black and slightly shining ; the antennae 

 and legs obscure ferruginous. Thorax rugose above, deeply strangu- 

 lated between the meso- and metathorax, the latter abruptly concave 

 truncate ; the peduncle of the abdomen inclining forwards, rounded 

 in front ; flat and oblique behind ; abdomen ovate, produced anteriorly, 

 and overhanging the peduncle. 



Hab, Makassar. 



2. Tapinoma nitida. T. nigra, Isevis, nitida; alis hyahnis, nervuris 

 pallide testaceis. 



Female. Length 4% lines. Shining black ; the antennae and the head, 

 before their insertion, ferruginous. Thorax oblong-ovate ; the legs 

 dark ferruginous, the tai'si palest ; the wings hyaline, the nervures 

 pale testaceous ; the discoidal cell triangular. The scale of the pe- 

 duncle inclining forwards and overhung by the base of the abdomen ; 

 the latter oblong-ovate, very smooth and shining. 



Hab. Makassar. 



Gr3U. POLTEHACHIS, Smith. 



1. PoLYRHACHLS PHYLLOPHiLUS. P. opacus, uigcr ; thorace spiuis 

 duabus acutis antice et postice armato ; abdominis squamula spinis 

 duabus arcuatis armata. 



Worker. Length 4 lines. Opake black, with the abdomen of an obscure 

 rusty red ; the palpi elongate and pale testaceous ; eyes prominent ; 

 the two carinae on the front, at the sides of which the antennae are 

 inserted, veiy much elevated and acute. Thorax : the spines on the 

 prothorax long, acute, and diverging outwards ; the metathorax com- 

 pressed, the upper surface slightly concave, with the lateral margins 

 raised, the carinae continued into two long parallel spines which pro- 

 ject over the peduncle of the abdomen ; the legs slightly shining, de- 

 stitute of spines and hairs, the calcaria pale. Abdomen obscurely red 

 and slightly pilose ; the peduncle armed above with two long acute 

 curved spines, which project over the base of the abdomen. 



Hab. Makassar. 



2. PoLYRHACHis coMPRESSicoRNis. P. uiger et vestitus pube ci- 

 nerea ; thorace spinis duabus acutis antice armato ; abdominis squa- 

 mula spinis duabus brevibus armata ; pedibus ferrugineis. 



Female. Length b\ lines. Black and densely clothed with cinereous 

 pile, which has a silvery brightness in certain lights ; the mandibles 

 shining black, and longitudinally striated ; the antennae inserted at the 

 sides of two prominent carinae ; the scape compressed, much broader 

 than usual, with the apex widest and thinly covered with short pale 

 glittering pubescence. Thorax : the spines at the lateral angles of 



