414 bulletin: museum of comparative zoology. 



declivity by an obtuse margin; declivity concave above, convex below, 

 margined at sides, the margins developed into very large stout angles at upper 

 corners. 



Sculpture, pilosity, and color as in worker. 



Taviuni: Somo Somo. 



Described from seven females and a solitary worker found under 

 different stones in the hills back of the village. The adults are very 

 slow in movement, but active with their stings. 



6a. EupoNERA (Trachymesopus) stigma (Fabricius), var. quadri- 



dentata (F. Smith). 



Ponera quadridentata Smith, Journ. proc. Linn. soc. London. Zool., 1858, 3, p. 

 143, y . 



Viti Levu: Waiyanitu. Vanua Levu: Lasema. 



A very few workers and females found in decaying logs, belong 

 to this variety, which is known to be distributed through the islands 

 from Aru to Fiji. It probably occurs also in Samoa and the other 

 larger and wooded Polynesian Islands. 



7. PoNERA viTiENSis, sp. nov. Fig. 4. 



Worker. Length 3.10-3.25 mm. 



Head a little longer than broad, shghtly narrowed in front, with moderately 

 convex sides, broadly rounded occipital angles and narrowly and distinctly 

 concave border. Mandibles with 10-11 small triangular teeth. Clypeus 

 convex at middle, not carinate, rounded at anterior border. Antennal scapes 

 slender at basal half, moderately thickened apically, barely attaining occipital 

 corners; first funicular joint as long as the second and third together, all the 

 joints longer than broad, terminal joint a little longer than the two preceding 

 joints together. Eyes small, but distinct, situated in front of anterior third 

 of sides. Thorax slender, with strong sutures. Pronotum about as long as 

 broad, rounded at sides and feebly convex above. Mesonotum suboval, a 

 little broader than long. Base of epinotum as long as the declivity, narrowed 

 above, separated from declivity by a very broad angle. Declivity flat, rather 

 narrowly margined at basal half of sides. Petiolar node in profile narrowly 

 rounded above, with convex anterior and slightly concave posterior surfaces, 

 from above three times as broad as long, convex in front and at sides and 

 narrowly concave at middle of posterior border. 



Shining. Mandibles with a few coarse punctures. Head and body finely, 

 not very densely, punctate. 



