326 bulletin: museum of compakative zoology. 



and thin, rounded at tip. Postpetiole one and a third times as broad as 

 petiole and a Uttle broader than long; in profile, as long as high, rounded 

 above. Legs less swollen than in the related species. 



Feebly shining. Mandibles with sparse, fine punctures. Head, thorax, 

 and base of epinotum rugosely punctate and reticulately striate. Petiole, 

 postpetiole, and first gastric segment with foveolate punctures which are more 

 regular and shallower on the gaster. 



Fine, erect, yellowish hairs moderately abundant on head and body, and 

 shorter, stiffer, semierect ones on appendages. 



Dark, reddish brown, gaster black; mandibles and appendages yellowish 

 brown. 



Male. Length 2.25 mm. 



Head, excluding eyes a little longer than broad, corners broadly rounded, 

 occipital border nearly straight. Mandibles elongate, flat and broadly rounded 

 at tips. Clypeus strongly convex, narrowly rounded in front. Eyes large 

 and convex, more than half as long as head; situated at a distance equal to 

 one fifth their length from the anterior borders of head. Ocelli large. An- 

 tennae slender, 13-jointed, their scapes two thirds as long as the eyes; first 

 funicular joint scarcely longer than the second; all joints longer than broad, 

 increasing in length toward apex; apical joint slender, about as long as the 

 two preceding joints together. Thorax robust. Mesothorax flat. Mayrian 

 furrows not present; parapsidal furrows short and broad. Scutellum trans- 

 verse, flattened. Epinotum with a rounded angle between base and declivity. 

 Petiole in profile longer than high, broadly rounded above; beneath with a 

 minute sharp tooth in front of middle; from above, longer than broad, 

 with moderately rounded sides. Postpetiole subglobose, a little broader 

 than petiole. Gaster narrow. Genitalia prominent, legs long and very 

 slender. 



Feebly shining. Head subopaque, densely punctate. Thorax, petiole, 

 postpetiole, and first gastric segment finely, shallowly, and rather densely 

 punctate, the gaster less densely than the rest. 



Short, silky hairs abundant on head, body, and appendages. 



Color dark brown to black; legs brown, antennae yellowish brown. Wings 

 evenly infuscated. 



Ugi: Pawa. 



This species differs from the other Papuasian forms in the denticu- 

 late margins of the epinotal dechvity, in the coarse punctation of the 

 first gastric segment, and the generally coarser sculpture of head and 

 thorax. It was fairly common on Ugi, nesting beneath bark like the 

 other species. I did not find it on other islands, but took the following 

 subspecies on Malaita. Typc.— M. C. Z. 9,170. 



