MANN! INTfl 01 i in. ll.ii ISLANDS. 469 



long, in pn»tilc higher than Long, lit I le narrower above than al bate, with nearly 

 Btraight anterior and posterior surfaces and broadly rounded dorsum. Post- 

 petiole aboul as Long as petiole, rounded] from above :i little broader than 



petiole, rather narrowly rounded at sides. 



Shining. Mandibles finery punctate; coarse, foveolate, widely separated 

 punctures on head, (lacking on a narrow strip on front mid vertex), thorax, 

 (lacking on most of mesonotal disc), and abdomen, more regular on gaster than 



on Other parts. Scapes sparsely punctate. 



Head, body, and appendages with copious, Long, and very fine and silky 

 hans, which are shorter and somewhat less abundant on the appendages. 



Puscopiceous; Legs and antennae Lighter. 



Vanua Levu: Lasema. 



Described from one worker found beneath a stone. It is evidently 

 hypogaeic in habit. 



43. Tetramorium (Tetrogmus) simillimum (Xylander). 



Myrmioa simUlima (Nyl.). Smith, List. anim. Brit. mus. Acul., 1851, p. 

 118, 9 . 



Taviuni: Somo Somo. 



Occurs as a house-ant, probably throughout the islands. 



44. Tetramorium (Tetramorium) guineense (Fabricius). 

 Formica guineensis Fabr., Entom. syst., 1793, 11, p. 357, n. 31, § . 



Throughout the islands, most commonly in cultivated districts. 



45. Tetramorium (Tetramorium) tonganum Mayr. 

 Verh. Zool. bot. gesellsch. Wien, 1870, 20, p. 972, 976, § . 



Viti Levu: Waiyanitu. Vanua Levu: Lasema. Taviuni: Somo 

 Somo. 



Nests in small colonies in rotten wood. It is much less common 

 than the following species. 



46. Tetramorium (Tetramorium) pacificu.m Mayr. 



Verh. Zool. hot. gesellsch. Wien, 1870, 20, p. 972, 976, £ 9. 



Viti Levu: Xadarivatu, Waiyanitu, Xasoqo. Vanua Levu: 

 Lasema, Labasa, Wainunu. Taviuni: Somo Somo, Nagasau. 

 Ovalau; Levuka. Kadavu: BukeLevu. 



