300 BILLETIN: MISEIM OF f OMPAHATIVK ZOOLOGY. 



Color fuscous; with mandibles, antennae, and {lenieulae lighter. Wings 

 (length 4 mm.) hyaline, with semierect and moderately long hairs; veins and 

 stigma pale. 



Three Sisters : IVIalapaina (Type-locality). San Cristoval: Wai-ai, 

 Paniua. Ugi : Paw a. 



Type. — M. C. Z. 9,157. On several occasions I found masses of 

 workers, accompanied by males, swarming on the ground, always in 

 the forest, and numerous larvae and pupae beneath pieces of bark 

 lying on the ground . Probably these were temporary nesting places. 



This form was found onlv in the eastern end of the Solomons. 



27b. Leptogexys (Lobgpelt.v) dimixuta (F. Smith), var. laevicep.s 



(F. Smith). 



Ponera laeviceps F. Smith, Journ. proc. Linn. soc. London. Zool., 1858, 2, 

 p. 69, g . 



Malaita: near Fourafi, in the interior. 



A small series of workers taken running in file on the ground, 

 across a trail, evidently belong to this variety. 



28. Anochetus graeffei Mayr. 

 Verb. K. K. zool.-bot. gesellsch. Wien, 1870, 20, p. 961, ^ . 



Santa Cruz: Graciosa Bay. 



One dead and broken worker of this widely distributed Polynesian 

 species was found. 



29a. Anochetus punctiventris Mayr, subsp. oceanicus Emery. 

 Ann. Mus. civ. stor. nat. Genova., 1884, 21, p. 378, ^ {nee. Mayr). 



San Cristoval: Wainoni Bay, Wai-ai, Pamua. Malaita: Auki. 

 Florida: Tulagi. New Georgia: Maravo Lagoon. 



There is some variation among workers from the same colony in 

 the shape of the petiole, which in some specimens is more rounded 

 above than in others. Three females among my specimens have the 

 upper border distinctly emarginate at the center. 



