MANN: ANTS OF THE FIJI ISLANDS. 491 



Head and body coriaceous-rup;ulose, gaster transversely so; head and gaster 

 with very sparse setigerous punctures and finer punctation. 



Stiff, black, erect hairs very sparse on head and posterior margins of gastric 

 segments. Microscopic pubescence sparse on head, gaster, and appendages. 



Dead-black, with th^ last tarsal joint and the tip of the terminal joint of the 

 funiculus and the mandibles brownish red. 



Viti Levu: Nadarivatu. 



Described from a large series of workers found on the ground and on 

 the trunks of kauri trees. The nests are probably situated high in 

 these trees. As they run about, the workers elevate the gaster and 

 carry it held forward over the thorax. 



The elongate, flattened thorax, the curious petiole, the depressed 

 gaster, the very long slender and compressed legs and the dead-black 

 color are characteristic of this species, which, if it does belong to the 

 subgenus Colobopsis as I believe, is an unusually large form. Type. — 

 M. C. Z. 8,723. 



74. CAMPONaTus (Colobopsis) dentatus Mayr. Fig. 37. 

 Sitz. Akad. wiss Wien, 1866, 53, p. 492, fig. 5, S . 



Soldier. Length 4.75-5.25 mm. 



Head one fifth longer than broad, about as broad in front as behind, sides 

 feebly convex, posterior corners rounded, border shallowly concave. Mandi- 

 bles 5-dentate. Clypeus broad, quadrate, shallcwly, longitudinally impressed 

 at middle and roundly elevated at sides, anterior border nearly straight; 

 portion above truncation three times as broad as long. Cheeks at sides of 

 clj-peus shallowly impressed. Frontal carinae thick, moderately elevated, 

 not extending to opposite anterior border of eyes. Middle of front indis- 

 tinctly carinate. Antennal scapes stout, slightly surpassing occipital corners; 

 funicular joints, excepting the first and the terminal, less than twice as long as 

 broad. Eyes nearly flat, situated at posterior fourth of sides of head. Thorax 

 and epinotum robust, broad and flattened above. Mesonotum indistinctly 

 carinate at middle. Epinotum armed with a pair of erect, rather bluntly 

 pointed spines, which are a little longer than half their distance apart at base; 

 the surface slightly convex in front, concave between the spines; declivity 

 shorter than the base, and concave in profile. Petiolar node from above one 

 and one half times as long as broad, broadest in front, anterior corners narrowly 

 rounded, sides straight, posterior border strongly excised, with the corners 

 bluntly conical, dorsal surface flat, except posteriorly where it is impressed at 

 middle; in profile higher than long, anterior surface straight and narrowly 

 rounding into the dorsum, which is flat, posterior surface concave. Legs, 

 short and stout. 



