90 FORMICIDvE. 



109. Ponera ceylonensis, Mayr, Termesz. Filzetek, xx (1897), p. 422, $ ; 



Forel, Jour. Bomb. N. H. Soc. xiii (1900), p. 322, $ . 



" . Reddish yellow, in parts more brownish, the abdomen 

 light brown ; the mandibles, antennae and legs, and also the apex 

 of the abdomen, yellow. Pilosity very sparse, the hairs long, fine 

 and nearly erect ; the pubescence relatively dense, long, fine and 

 nearly recumbent. The head, pedicel and abdomen in part 

 densely and finely punctured, and only moderately shining. The 

 sides of the head, the thorax and the node of the pedicel above 

 with scattered shallow fine punctures, and somewhat more 

 polished and shining. The smooth, shining, only sparsely punc- 

 tured mandible has a masticatory margin armed with 9 or 10 teeth, 

 of which the anterior tooth is the largest, the posterior the 

 smallest. The head is half as long again as broad, and is dis- 

 tinctly broader than the pronotum ; its sides are feebly arched, 

 only just at the posterior lateral angles are they bent more 

 strongly inwards ; the posterior margin of the head is widely, not 



deeply emarginate Antennal carinse short. Eyes and 



ocelli entirely absent. Pronotum broadest anteriorly, narrowed 

 towards the apex of the metanotum. The dorsum of the thorax 

 is not level from front to back, but a little depressed from the 

 very distinct pro-mesonotal suture to the apex of the basal 



portion of the metanotum Node of pedicel very thick ; 



meso-metanotal suture not distinct above ; the node about as long 

 as it is broad posteriorly, . . . and as high as the front of the 1st 

 abdominal segment. Node seen from above trapeziform. . . . 

 The constriction between the basal two abdominal segments 

 moderately well marked." (Mayr.) 



Length,' % 2-6 mm. 



Hab. Ceylon. 



Unknown to me, but very distinct apparently by the entire 

 absence of eyes or ocelli. 



110. Ponera truncata, Smith, Jour. Linn. Soc. v (1861), p. 72, $; 



Forel, Jour. Bomb. N. H. Soc. xiii (1900), p. 324, . 



$ . Dark castaneous brown, densely reticulate, punctate and 

 pubescent ; the mandibles, antennae and legs pale reddish brown. 

 Head nearly transverse posteriorly ; eyes comparatively large ; 

 mandibles with an extremely broad masticatory margin ; clypeus 

 carinate, the carina bifurcate anteriorly. Thorax as long as the 

 abdomen, above slightly emarginate at the meso-metanotal suture, 

 the metanotum slightly compressed. Node of the pedicel flat, 

 very much broader than long, but distinctly thick and rounded 

 above, not with a sharp margin; abdomen with the constriction 

 between the basal two segments well marked ; sting exserted. 



Length, $ 3-3-5 mm. 



Hab. Upper Burma, the Shan plateau up to 6000 ft. (Thompson); 

 Karennee (Fea). Described originally from the Celebes. 



