68 Mr. F. Smith's descriptions of new species 



60. Pseitdomyrma unicolor. 



Worker. — Length 3 — 3;^ lines. Luteous and shining ; 

 head oblong, widest in front; eyes moderately large, black 

 and oblong-ovate ; mandibles paler than the head. Thorax 

 much narrower than the head, slightly strangulated in the 

 middle; the apex of the metathorax obliquely curved to 

 the petiole of the abdomen, Avhich is short, the node being 

 clavate ; the second node short and subglobose ; the 

 abdomen oblong, and pointed at the apex. 



Hab. — Brazil. 



This species resembles P. ligniseca, of Brazil, but it 

 differs from that insect in having the basal node of the 

 abdomen very short and stout. 



Genus Teteaponera. 



Tetraponera, Smith, Ann. & Mag. Nat. Hist. ix. 44 



(1852). 

 Sima, Roger, Berl. Ent. Zeitschr. p. 178 (1862). 



Head longitudinally quadrangular, sides parallel, obtuse 

 anteriorly; ocelli three in male and female, obliterated in 

 the worker; eyes ovate, occupying about one-third of the 

 length of the head; antennre 12-jointed, clavate, inserted 

 at the sides of an elevated prominence above the base of 

 the clypeus; mandibles stout and dentate. Thorax elon- 

 gate. Abdomen petiolated and bi-nodose. Wings as in 

 the genus Pseudomyrma. 



*1. Tetraponera atrata. Smith, Ann. & Mag. Nat. Hist. 

 (1852), ix. p. 44, fig. ?. 

 Hab. — Bombay. 



2. Tetraponera rufonigra {Pseudomyrma), Smith, 



Cat. Hym. Ins. Form. 159. 

 Eciton rufonigrum, Jerdon, Madr. Journ. Lit. & 



Sc. (1851), p. Ill, 5. 

 Sima rufonigra, Roger, Berl. Ent. Zeitschr. (1863), 



p. 25. 

 Hab. — Malabar; Calcutta; Siam. 



3. Tetraponera nigra {Pseudomyrma), Smith, Cat. 



Hym. Ins. Form. 159. 

 Eciton nigrum, Jerdon, Madr, Journ. Lit. & Sc. 

 (1851), 112, 5. 



