20 MB. F. SMITH ON HTMENOPTEHOUS I>SECTS 



differs from the former in having the thorax oblong-ovate, with a few striae 

 down the middle, leaving the sides smooth ; the striae do not extend beyond 

 the scutellum, the metathorax being smooth and shining ; the first node 

 of the peduncle is oblong, slightly curving downwards, and not toothed 

 either above or beneath ; the second node is globose and longitudinally 

 striated. Abdomen oblong-ovate, pale ferruginous or rather clay-coloured ; 

 the apical margin of the first segment with a broad black band, which is 

 toothed in the middle ; the second segment has a narrower band. 



2. PoDOMYRMA L^vissiMA. P. nigro-fcrruginca ; thorace abdomine- 

 que Isevissimis lucidisque ; capite delicatule punctate ; femoribus me- 

 dio valde incrassatis, basi tenuissimis. 



Worker. Length 2| lines. Dark castaneous, nearly black, with the 

 mandibles, abdomen at the base, and the legs in parts obscure ferru- 

 ginous, the mandibles palest ; the head obloug-quadrate, with the 

 augles rounded, delicately striated between the antennae, and very 

 finely punctured behind their insertion. Thorax deeply strangulated 

 in the middle, the anterior angles produced and acute. 



Hab. Mysol. 



3. PoDOMYRMA RUFicEPS. P. fusco-fcrruginea ; capite rubro ; capite 

 thoraceque longitudinaliter striatim rugulosis ; femoribus medio valde 

 incrassatis, basi tenuissimis; pedibus abdomineque laevissimis luci- 

 disque. 



Worker. Length 4 lines. Head ferruginous, the antennae and teeth of 

 the mandibles black ; the thorax, abdomen, and legs dark fusco-ferru- 

 ginous ; the head, thorax, and nodes of the petiole coarsely and longi- 

 tudinally rugose, on the disk of the thorax running into irregular coarse 

 striae ; on each side of the thorax in front is a stout blunt spine ; the 

 metathorax has two short teeth or spines, and the first node of the ab- 

 domen has a tooth in the middle above, and another at the base be- 

 neath. The abdomen is oblong-ovate, and pointed at the apex ; the 

 legs smooth and shining, with the femora much swollen in the middle ; 

 the antennae, thorax, abdomen, and legs thinly sprinkled with erect 

 pale hairs. 



Hab. Mysol. 



Gen. PsEUDOMTRMA, Guer. 



1. Pseudomyrma laeviceps. Smith, Proc. Linn. Soc. iii. 145. \. 

 Hab. Ceram ; Dory ; Aru ; Waigiou. 



2. Pseudomyrma carbonaria. P. aterrima, laevis, nitida; antennis, 

 mandibulis, tibiis tarsisque rufo-testaceis. 



Worker. Length 2 lines. Jet-black, smooth and shining; the eyes 

 large, oblong-ovate, occupying a considerable portion of the sides of 

 the head; the antennae and mandibles rufo-testaceous. Thorax ob- 

 long, widest in front, the divisions strongly impressed ; the tibiae and 



