HYMENOPTERA. 9? 



piceous ; the anterior tarsi densely clothed beneath with fulvous 

 pubescence. Abdomen oblong subcylindrical, the base truncate ; 

 the node incrassate, anteriorly curving forwards over the meta- 

 thorax, the upper surface nearly oval, shining and finely punc- 

 tured. 



Var. The legs and base of the abdomen castaneous. 



Hab. South America (Napo). 



49. PONERA CRUDELIS. PI. VI. figs. 23, 24. B.M. 



Worker. Length 3-J- lines. Black, elongate, smooth and 

 shining : the mandibles, clypeus, antennae and legs rufo-testa- 

 ceous ; apex of the abdomen pale rufo-testaceous. Head oblong- 

 ovate ; the clypeus with a sharp carina down the middle, the scape 

 more or less fuscous above, the base and apex pale ; the posterior 

 margin of the head emarginate. Thorax elongate, narrowed or 

 compressed in the middle, the apex emarginate, the lateral angles 

 of the emargination acute or subspinose; the apical joints of 

 the tarsi pale. Abdomen rounded at the base, strangulated at 

 the apex of the first segment, and tapering to an acute point at 

 the apex ; the sting exserted, half the length of the abdomen ; the 

 node of the peduncle subquadrate, rounded in front and trun- 

 cate behind ; the insect thinly sprinkled with short pale hairs. 



Hab. Brazil; Rio (Constancia). 



50. PONERA CARBONARIA. 



Worker. Length 4^ lines. Jet-black, shining and impunc- 

 tate : mandibles obscurely ferruginous, with seven or eight strong 

 teeth on their inner margin ; the head, thorax and abdomen with 

 a thin short yellowish pubescence; the tip of the antennae fer- 

 ruginous. Thorax elongate, narrowed posteriorly, the apex ob- 

 liquely truncated ; the calcaria and claw-joint of the tarsi rufo- 

 testaceous. Abdomen : the node of the peduncle incrassate, ver- 

 tical in front and obliquely curved behind ; the extreme apex of 

 the abdomen rufo-testaceous. 



Hab. South America (Quito). (Coll. F. Smith.) 



This species resembles P. inversa, particularly in the form of 

 the node of the peduncle ; but the latter species has the head 

 striated, the thorax punctured, the prothorax flattened above, and 

 the legs and base of the abdomen more or less ferruginous. 



51. PONERA APICALIS. B.M. 

 Formica apicalis, Latr. Hist. Nat. Fourm. 204. pi. 7. f. 42. A. 

 Hab. South America ; Brazil (Para). 



