MANN: ANTS OF THE FIJI ISLANDS. 455 



Gaster sparsely and rather coarsely punctate. Appendages with sparse 

 punctures. 



Long and fine hairs abundant on head, body, and appendages. 



Black; mandibles and appendages reddish brown. 



Male. Length 2.10 mm. 



Head, excluding eyes, a little longer than broad, narrowed and rounded 

 behind. Mandibles moderately well developed. Clypeus convex, anterior 

 border veiy feebly rounded. Eyes large, a little less than half as long as head. 

 Antennae 13-jointed, scapes less than half as long as head and rather thick, 

 second funicular joint shorter than the first, as long as the third, and more than 

 twice as long as broad, joints 4-11 gradually increasing in length, terminal 

 joint slender, about as long as the two preceding joints together. Alesothorax 

 with strong MajTian and parapsidal furrows. Scutellum convex, a little 

 broader than long, strongly declivous behind. Base of epinotum longer than 

 the declivity, surface flat. Petiolar node evenly rounded above, from above, 

 subcircular. Postpetiole subquadrate, broader than long; in profile rounded 

 above. Gaster elongate. Genitalia small. 



Moderately shining. Head, thorax, petiole, and postpetiole punctate, 

 gaster more finely so. 



Fine, semierect pilosity abundant on head, body and appendages. 



Reddish brown, appendages lighter; wings hyaline, with pale veins and 

 stigma. 



Kadavu: Vanua Ava (Type-locality), Buke Levu. Viti Levu: 

 Nasoqo. 



Distinguished by the elongate head, with its delicate striation, and 

 the large epinotal spines. Only one %vorker was found on Viti hevn 

 but the species is abundant in parts of Kadavu, nesting beneath stones 

 in small colonies. Type. — M. C. Z. 8,706. 



41. RoGERiA (Irogera) rugosa, sp. nov. Fig. 20. 



Worker. Length 2.50-3.00 mm. 



Head barely broader than long, sides convex, posterior angles broadly 

 rounded, border nearly straight. Mandibles with three strong teeth on apical 

 half and four small teeth on basal half. Clypeus rather strongly rounded at 

 anterior border. Antennal scapes extending nearly four fifths the distance to 

 occipital corners; first funicular joint longer than the second and third to- 

 gether; joints 2-8 strongly transverse; funicular joint much longer than the 

 two preceding joints together. Eyes situated in front of middle of sides of 

 head. Pronotum little convex at middle, humeri I'ounded. Mesoepinotal 



