96 HYMENOPTERA. 



4(>. POXERA PEDUNCULATA. PL VI. fig. 25. B.M. 



Worker. Length 6 lines. Black : covered with a pale golden- 

 yellow pubescence ; the head rather wider than the thorax ; the 

 mandibles produced forwards, forming an elongated triangle, 

 their inner edge serrated ; the antennae nearly as long as the 

 thorax. Thorax : the disk somewhat flattened anteriorly, with 

 the angles of the anterior margin acute ; the meso- and meta- 

 thorax pinched above, forming a central sharp edge down the 

 middle above ; the apex of the metathorax obliquely truncated ; 

 the calcar at the apex of the tibiae pale testaceous. Abdomen : 

 the node of the peduncle incrassate, its anterior margin vertical, 

 from the apex of which it is gradually rounded behind to its 

 base ; a deep strangulation between the first and second seg- 

 ments, the apex of the abdomen acute. 



Hab. Brazil. Rio (Constantia). 



Specimens of this species have the golden pubescence usually 

 more or less obliterated. 



47. PONERA LINEARIS. B.M. 



Worker. Length 2 lines. Black : smooth, shining, and 

 thinly covered with a pale downy pile ; the antennae, mandibles 

 and legs ferruginous, their apex acute, their inner margin not 

 toothed or serrated ; the clypeus triangular, the sides oblique, 

 forming an acute edge down the middle.- Thorax elongate, the 

 sides nearly parallel, or very slightly swollen anteriorly ; the apex 

 of the metathorax obliquely truncate. Abdomen oblong-ovate, 

 the apex pale rufo-testaceous, the node of the abdomen incras- 

 sate, rounded in front and truncate behind. 



Male. Length 2 lines. Obscure rufo-testaceous, or some- 

 times pale rufo-testaceous ; the antennae and legs pale testaceous; 

 the thorax oblong-ovate ; the wings hyaline, with the nervures 

 pale testaceous-yellow ; the abdomen and also the node of the 

 peduncle of the same form as in the worker. 



Hab. Brazil; Santarein. 



The males and workers of this species were taken from the 

 nest by Mr. H. W. Bates. 



48. PONERA INVERSA. B.M. 



Worker. Length 5 lines. Black : the head longitudinally 

 rugulose ; the mandibles large, their inner edge with a row of 

 sharp teeth. Thorax somewhat flattened anteriorly, closely and 

 rather finely punctured, the lateral margins acute; the meta- 

 thorax narrower and finely rugulose ; the legs obscurely ruf 



