420 



bulletin: Ml M-.l u 01 comparative zoology 



Length; funicular joints all much longer than broad, gradually d ng in 



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

 i convex, situated at a distance from base of mandibles equal to 11 times 

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

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

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

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

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

 with a shalloAlv eoneave disc. ( raster and lege 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 port ions 

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

 and regular, though much finer than that of head. 



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

 shorter and stif'fer 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 g 

 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 (> 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. Antenna! 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: Xadarivatu. 



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

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



