68 MR. smith's catalogue op htmenoptebotts insects 



mandibles ferruginous. Thorax : rounded anteriorly ; the disk in 

 front transversely striated, these striae encircled by others which pass 

 round the sides and front; the thorax beyond with a striation, 

 which runs in an elongated oval direction, the sides obliquely 

 striated ; the legs very obscurely ferruginous. Abdomen : the node 

 incrassate, rounded in front and above, truncated behind ; the margin 

 of the truncation deeply emarginate, the lateral angles of the emar- 

 gination produced into long stout acute spines ; the node with a 

 curved striation, the curve being forwards ; the first segment with a 

 beautiful even curved striation; the apical segments smooth and 

 shining, covered with a cinereous silky pubescence. 



Hab. Singapore. 



This species resembles the P. versicolor, but is much more regularly and 

 evenly striated ; the striation on P. versicolor is coarse and uneven, 

 and directed differently on the thorax ; the joints of the antennas in 

 this species are also longer and more slender. T. C. Jerdon has 

 described a striated species of Ponera, but he says, " abdominal 

 pedicle raised, pointing forwards with two small spines " — which does 

 not agree with any of the insects here described. 



9. PoNERA TRANSVERSA. P. obscurc Hifo-fusca ; thorace supra trans- 

 verse rugoso ; pedunculo margine supra emarginato. 



Worker. Length 4 lines. Black : the head deeply striated, the striae 

 on the vertex diverging from the centre; the antennae scarcely 

 as long as the thorax, inserted at the side of two ridges at the base 

 of the clypeus; the elevations, extreme base of the scape, and 

 the mandibles, obscurely ferruginous. Thorax elongate, the sides 

 straight, slightly narrowed from the front towards the abdomen ; the 

 margin of the thorax, in front, rounded, the lateral angles furnished 

 with a short obtuse spine; the thorax is transversely striated its 

 entire length ; the verge of the oblique truncation at the apex with 

 two very short obtuse spines; the legs ferruginous. Abdomen ob- 

 scurely rufo-piceous, covered with a fine cinereous pile, and sprinkled 

 with long pale hairs; the scale, when viewed sideways, is wedge- 

 shaped, the upper edge deeply notched, and the scale transversely 

 striated behind. 



Hab. Singapore. 



10. PoNERA VIDUA. P. rufcsccnti-fusca ; antennis elongatis ; thorace 

 ovato, postice truncato; alis hyalinis; abdominis nodo incrassato, 

 subtus spinis duabus parvis armato. 



Male. Length 4 lines. Red-brown : antennae elongate, fusco-feiru- 

 ginous, the base, and apex of the joints, pale testaceous ; the eyes 

 large and ovate, the ocelli large and of glassy brightness. Thorax 

 ovate, with a thin loose downy pubescence ; the metathorax truncate, 

 the sides rugose ; wings hyaline, the nervures pale yellow, with the 



