420 bulletin: museum of comparative zoology. 



length; funicular joints all much longer than broad, gradually decreasing in 

 length toward apex, terminal joint shorter than the next two joints together. 

 Eyes convex, situated at a distance from base of mandibles equal to 1§ times 

 their diameter. Pronotum about as broad as long. Mesoepinotum without 

 trace of suture, three times as long as broad and evenly rounding into the short, 

 flat declivous portion. Petiole from above longer than broad, narrowed and 

 rounded in front, straight behind; in profile about as long as high, with the 

 anterior and posterior surfaces together forming an even arc, posterior surface 

 with a shallowly concave disc. Gaster and legs slender. 



Shining. Mandibles with several coarse punctures. Sides of clypeus 

 irregularly and coarsely striate. Head with coarse punctures, which are 

 regular and separated on the occiput, vertex, and upper portion of front, but 

 become confluent and interspersed with irregular striae on the anterior i^ortions 

 of head inward from the eyes. Punctation of thorax and abdomen distinct 

 and regular, though much finer than that of head. 



Very fine and silky erect hairs moderately abundant on head and body and 

 shorter and stiffer ones on appendages. 



Jet black; appendages and apex of gaster ferruginous. 



Female. Length 7 mm. 



Ergatoid. Differing from the worker only in the greatly enlarged gaster 

 and the shape of the petiole which in profile is much higher than long, with 

 distinct dorsal and anterior surfaces, the latter impressed basally. The 

 mesoepinotal suture is feebly indicated. 



Male. Length 6 mm. 



Head, excluding eyes, longer than broad, rather broadly rounded behind. 

 Mandibles elongate, spatulate. Clypeus carinate at middle, sloping on either 

 side, broadly rounded in front. Antennal scapes more than half as long as 

 eyes; first funicular joint thicker than the second and about a third as long, 

 remaining joints cylindrical, elongate, gradually decreasing in length toward 

 apex, terminal joint one and one third times as long as penultimate. Eyes 

 occupying four fifths of sides of head. Ocelli very large. Thorax robust. 

 Mayrian and parapsidal furrows very strong. Scutellum convex. Petiole 

 similar to that of worker, but proportionately longer and impressed at middle 

 of dorsoposterior border. Gaster long and slender. 



Shining and finely punctate throughout. 



Black. Legs and antennae (except the scapes) brown. Wings hyaline, 

 with brown veins and stigma. 



Viti Levu: Nadarivatu. 



Occurs in small colonies of which I found numbers, generally beneath 

 logs or stones. Each of the four colonies contained a single female. 



