HYMENOPTERA. 85 



the thorax with circular striae in front, on the disk it is longitu- 

 dinal and oblique on the sides, curving upwards to the lateral 

 margins of the truncation of the metathorax ; the truncation ob- 

 lique and transversely striated ; the interstices of the striae rough- 

 ened, particularly on the head and thorax anteriorly ; the antennae 

 reaching to the apical margin of the first segment of the abdomen. 

 Abdomen oblong-ovate ; the peduncle compressed, rounded in 

 front, and armed above on the verge of the truncation with two 

 acute spines pointing backwards ; beneath, furnished with an 

 acute spine in the middle ; the truncation transversely striated ; 

 the apical margin of the first segment constricted, those of the 

 following segments and the apex obscurely ferruginous. 



Hob. Northern India. 



10. PONERA IRIDiPENNIS. B.M. 



Male. Length 3% lines. Dark rufo-testaceous : the antennae 

 and mouth pale rufo-testaceous ; the head smooth and shining, 

 the ocelli very prominent. Thorax very smooth and shining ; 

 wings hyaline and beautifully iridescent, the nervures pale tes- 

 taceous, the tegulae, posterior margin of the prothorax, the base 

 and apex of the femora, the tibiae and the tarsi, pale rufo-testa- 

 ceous. Abdomen elongate, slightly strangulated at the apex 

 of the first segment ; the apical margins of the three basal seg- 

 ments and the whole of the following segments pale rufo-testa- 

 ceous ; the node of the abdomen conical ; the insect covered 

 with a short thin downy pile. 



Hab. North Bengal. 



11. PONERA RETICULATA. B.M. 



Male. Length 3.} lines. Black : head transverse, eves pro- 

 minent, the mandibles and palpi pale rufo-testaceous; the an- 

 tennae obscurely fusco -ferruginous, the extreme apex pale testa- 

 ceous. Thorax transversely reticulated ; the pro- and meta- 

 thorax rugose ; the mesothorax with a smooth impressed line 

 on each side over the tegulae ; the wings fusco-hy aline, the ner- 

 vures and stigma testaceous ; the tarsi ferruginous. Abdomen : 

 the peduncle conical, the abdomen with a fine thin sericeous 

 pile and sprinkled with long fuscous hairs. 



Hab. Birmah. 



12. PONERA PALLIDA. B.M. 



Male. Length 3 lines. Pale yellow testaceous : antennae fer- 

 ruginous, the tibiae and tarsi slightly fuscous, the eyes ovate ; 



