OF CEKAM, CELEBES, TERNATE, AND GILOLO. 



41 



seven of the apical joints entirely ferruginous ; the thorax convex 

 above, the anterior spines short, stout, and acute ; the metathorax 

 with two very stout, acute divergent spines ; the node of the petiole 

 with two long spines very stout, acute, and curving round the base of 

 the abdomen ; the abdomen globose. The anterior tibiae obscurely 

 ferruginous, their base black. (PI. I. fig. 12.) 

 Hab. Celebes (Toudano). 



15. Polyrhachis Amanus. P. niger, lsevis, nitidus ; thorace antice 

 et postice spinis duabus longis acutis armato ; squama spinis duabus 

 longis curvatis ; femoribus basi pallide ferrugineis. 



Worker. Length 3 lines. Jet black, smooth and shining, the thorax 

 finely roughened and sub-opake ; head very prominent in front, tips 

 of the mandibles and of the joints of the flagellum, as well as the 

 palpi, rufo-testaceous, five or six of the apical joints of the flagellum 

 entirely so. Thorax, the spines in front short, stout, acute, and 

 curved inwards ; those on the metathorax elongate, extending over the 

 base of the abdomen and very acute ; the spines on the node of the 

 peduncle slender, very acute, and curved to the shape of the base of 

 the abdomen ; legs elongate, obscurely ferruginous, with the coxae, 

 trochanters, and base of the femora pale testaceous, the claws of the 

 tarsi testaceous. Abdomen globose, highly polished and impunctate. 

 (PL I. fig. 13.) 



Hab. Celebes (Tondano). 



16. Polyrhachis Cleophanes. P. niger, pube argentea vestitus ; 

 capite thoraceque rude punctatis, spinis acutis antice et postice armatis; 

 petioli squamula bispinosa ; femoribus basi ferrugineis. 



Worker. Length 3£ lines. Black, the abdomen shining; head and 

 thorax coarsely and closely punctured, rugose, and covered with sil- 

 very pubescent pile ; the prominence on the front of the head, under 

 the sides of which the antennae are inserted, very much elevated; the 

 eyes very prominent ; the spines on the thorax in front short, diver- 

 gent, stout, and acute ; those on the metathorax more slender, acute, 

 and curved backwards ; the node of the peduncle with acute spines, 

 which curve backwards over the base of the abdomen ; the base of 

 the femora more or less ferruginous, sometimes totally black. (PI. I. 

 fig. 14.) 



Hab. Celebes (Tondano). 



This is very probably the worker of P. Vibidia. 



17. Polyrhachis exasperatus. P. niger, capite thoraceque rude 

 punctatis, abdomine nitido ; thorace antice et postice spinis duabus 

 longis acutis armato ; squama spinis duabus longis curvatis acutis 

 armata; pedibus obscure ferrugineis. 



Worker. Length 2| lines. Black; the head anteriorly, the mandibles 

 and flagellum obscure ferruginous ; the head, thorax, and node of the 



