SOME GENERA OF VORMlCWsE. 393 



faintly convex. The scape does not quite reach the posterior edge 

 of the head. Mandibles narrow, crossed, the terminal edge short, 

 armed with 4 stout teeth. Epistome truncate anteriorly, very high 

 and vaulted posteriorly. The eyes have rather straight lateral 

 edges, and the anterior extremity almost pointed. Mesonotum small. 

 Pro-mesonotal suture faint ; meso-metathoracic constriction consider- 

 able. Basal area of the metanotum horizontal, narrow, much longer 

 than broad, longer than the sloping area. Knot of first joint of 

 pedicle attenuate at its summit. 



Mandibles rugose, rather shiny. The whole body, from one end 

 to the other, including the sloping area of the metanotum, densely 

 and finely reticulate-punctate, and lustreless or almost sub-opaque. 

 Legs and scapes reticulate. Some coarser longitudinal wrinkles on 

 the cheeks. 



Pubescence sparse, short on the whole body, slightly more abun- 

 dant on the legs and scape ; the recumbent hairs are curved. The 

 erect hairs very sparse, stiff, blunt, rather short ; the erect hairs 

 (except about the mouth and under the abdomen) are very distinctly 

 denticulate under the microscope, which gives them a somewhat 

 ragged look under a magnifying glass ; they are identical with those 

 of the genus Leptothorax. 



Reddish yellow ; legs, mandibles, antennae, pedicle, and abdomen a 

 paler yellow. A brownish band very indistinct and interrupted in 

 the middle of the abdomen. 



Poona (India), collected by Mr. R. C. Wroughton. 



Genus EMERY r A, n. gen. 



£ Mandibles very long, very narrow, without a terminal edge, 

 nearly straight for the basal half, curved beyond, terminating in a 

 long sharp point, slightly broadened and flattened about the middle, 

 narrowed near the base, without any trace of teeth. They leave 

 between them a large empty space, and resemble those of the "soldier" 

 of Mynneeocystus bombycinus. Epistome furnished with two keels, 

 hollowed and deeply grooved between. This groove is produced 

 between the frontal ridges, and as a frontal groove as far as the 

 middle of the vertex. No ocelli. Head broadened and rounded pos- 

 teriorly, narrowed anteriorly ; it has however a posterior edge ; eyes 



