44 



ME. F. SMITH ON HYMENOPTEEOUS INSECTS 



sub-ovate, the metathorax truncate with the margin of the truncation 

 acute ; the prothorax with two short acute spines. Abdomen globose ; 

 the node of the peduncle widely emarginate above and subdentate at 

 the angles. (PL I. fig. 23.) 

 Hab. Celebes (Tondano). 



Gen. Odontomachtjs, Latr. 



1. Odontomachus rixosus, Smith, Proc. Linn. Soc, ii. 64. 1. 

 Hab. Ternati ; Singapore. 



2. Odontomachus saevissimus, Smith, Proc. Linn. Soc. Supp. v. 102. 1 • 

 Hab. Menado ; Bachian ; Ceram. 



3. Odontomachus tyrannicus. 0. ferrugineus, lsevis nitidus; 

 thorace oblongo, metathorace transversim striato ; abdominis pedun- 

 culo unispinoso. 



Worker. Length 4 lines to the tips of the mandibles. Ferruginous, 

 very smooth and shining ; the head widest at the insertion of the eyes, 

 more than usually so ; the usual deep depressions between the eyes 

 and the prominence at the sides of which the antennae are inserted 

 very smooth without the faintest striation, the prominence slightly 

 striated longitudinally ; the head deeply emarginate behind ; the man- 

 dibles finely serrated on their inner margins, and terminating in two 

 stout teeth, which form a fork abruptly bent inwards. The antennae 

 and legs of a paler colour than the body ; the metathorax transversely 

 striated, the mesothorax above longitudinally so ; the spine on the node 

 of the peduncle of the abdomen short and acute. (PI. L fig. 4.) 



Hab. Celebes. 



Fam. PONEBXD2E, Smith. 



Gen. Poneiia, Latr. 



1. Ponera rugosa, Smith, Proc. Linn. Soc. ii. G6. 5. 

 Hub. Celebes; Borneo. 



2. Ponera parallela, Smith, Proc. Linn. Soc. iv. 143. 3. 

 Hob. Celebes; Aru. 



.'i. Ponera heviceps, Smith, Proc. Linn. Soc. ii. 69. 13 $ . 

 Hab. Celebes ; Bachian ; Borneo. 



\. I'onkka maligna. P, capitc Bubquadrato, margine posteriore trans- 

 verso; thorace abdomineque hevigatis, nitidis; mandibulis, antennis 

 tarsisque pallide ferrugineis. 



Female. Length b\ lines. Jet-black, smooth and shining; the poste- 

 rior margin of the head transver.se, with the lateral angles acute; the 

 elvpeus elevated ; the head is sprinkled with distant punctures; its 

 anterior margin, the mandibles, and antenna: ferruginous; the man- 

 dibles porrcct, with two or three teeth at their apex and a larger one 

 On their inner margin about one-third of their length from their apex. 



