MANN: ANTS OF THE BRITISH SOLOMON ISLANDS. 



297 



Color black; legs and antennae lighter; mandibles red. 

 white. 



Pilosity yellowish 



Santa Cruz: Graciosa Bay. 



The description is based on a single worker. This species is closely 

 related to cmcryi Forel from the Bismarck Archipelago, but the clypeus 

 is entirely different, with the middle projection bisinuate instead of 

 trisinuate. 



26. Leptogenys (Leptogenys) foreli, sp. nov. 



Worker. Length 6.5-7 mm. 



Head a little broader than long, broadest in front, posterior border straight. 

 Mandibles about as long as sides of head, strongly curved basally and then 

 slightly arcuate and of even thickness to 

 tips. Clypeus sharply carinate at middle; 

 median lobe longer than broad, with sides 

 parallel for half their length, then slightly 

 concave and converging to form a triang- 

 ular pointed tip; lobes on either side of 

 middle broadly rounded. Antennal scapes 

 surpassing occipital corners by about one 

 third of their length; first and third joints 

 subequal; terminal joint shorter than the 

 two preceding joints together. Thorax 

 broadly and shallowly impressed between 

 meso- and epinotum. Base of epinotum 

 convex above, much longer than the de- 

 clivity (in emeryi Forel but little longer) 

 and rounding into it. Petiolar node slightly 

 broader than long, convex above, highest 

 behind, with straight posterior and nearly straight anterior surfaces. 



Head and thorax subopaque. Mandibles striate. Head rugose and with 

 coarse foveolate punctures scattered on front and occiput. Pro- and mesono- 

 tum coarsely, foveolately punctate, the interspaces finely rugulose and more 

 shining than the rest. Epinotal declivity transversely striate, the base and 

 the petiolar node rugose. Gaster shining, with two sizes of punctures. Scapes 

 and legs finely punctate. 



Long erect pilosity abundant everywhere. 



Black; mandibles, antennae, apex of gaster, tibiae, and tarsi reddish brown. 



Male. Length 6.5 mm. 



Head a httle longer than broad, broadly and evenly rounded behind. 

 Mandibles small and spatulate. Clypeus with an elongate tubercle a little 



Fig. 10. — Leptogenys (Leptogenys) 

 foreli Mann. Worker. Head show- 

 ing epinotum and clypeus. 



