MANN: ANTS OF THE FIJI ISLANDS. 463 



very slender, supporting the upper end of a verj' thin, spongiform lamella that 

 borders the sides of declivity. Petiolar node a little longer than the pedicel, 

 longer than broad; in profile, longer than high and convex above. Post- 

 petiole transversely oval, about twice as broad as petiole. 



]\Iandibles unifonnly, shallowly punctate and shining. Head coarsely 

 punctate and opaque. Thorax more finely punctate and with irregular 

 longitudinal striae, subopaque. Epinotum finely punctate on anterior half 

 of base, the rest and the petiole and postpetiole smooth and shining. Gaster 

 with short, parallel costae basally. 



Erect hairs long and flexuous, sparse on head and body; shorter curved 

 hairs on head and thorax and at outer border of antennal scapes. Spongiform 

 hairs forming a very thin lamella at margins of epinotal declivity and well 

 developed on ventral and lateral surfaces and posterior borders of petiole 

 and postpetiole. 



Reddish brown. 



Vanua Lewi: Suene. 



Described from a small series taken from beneath a stone. 



The species resembles godeffroyi but has the head broader and the 

 mandibles much shorter and thicker; the sculpture of the thorax is 

 different (not striate in godeffroyi) and most of the epinotum and the 

 petiole and postpetiole smooth and shining. The spongiform processes 

 on the epinotmn are very thin compared with those in godeffroyi. 



Named in honor of Mr. F. B. Jepson, government entomologist of 

 Fiji. 



51. Struiniigenys scelestus, sp. nov. Fig. 22b. 



Worker. Length L75 mm. 



Head moderately elongate, sides slightly and evenly concave in front, feebly 

 convex behind, posterior corners broadly rounded, border shallowly concave. 

 Mandibles less than half as long as head, thickest basally and narrowed to- 

 ward tip, slightly arcuate, with a pair of slender apical spines, and basal to 

 these a third long, slender spine. CljTjeus flat, feeblj' rounded apically. 

 Antennae stout, their scapes extending three fourths the distance to occipital 

 corners; first funicular joint as long as the second and third together; second 

 and third joints subequal, a little longer than broad; fourth joint as long as the 

 first three together; terminal joint as long as the remainder of funiculus. 

 Eyes small, situated at inferior part of sides of head, well back of middle. 

 Thorax not impressed, in profile convex in pronotal region, flat behind. Base 

 of epinotiun narrowly margined. Epinotal spines short and very acute, 

 extended basally as broad, lamellate margins to the epinotal declivity. 

 Peduncle of petiole thick; shorter than node; node broader than long and 



