394 JOURNAL, BOMBAY NATURAL HISTORY SOCIETY, 1890. 



rather small, situated in the anterior one-third of the head. Frontal 

 ridges rather short. Antennas 11-jointed; the last joint, very large 

 and very thick, alone forms the club. The scape is far from reaching 

 the posterior edge of the head. The pronotum has two distinct 

 shoulders, and forms anteriorly near its articulation distinct steps. 

 The mesono turn is short and very broad; its lateral edge forms on each 

 side a triangular protuberance like a large festoon. Metanotum armed 

 with two short spines. Pedicle as in the genus Cardiocondyla. The 

 first joint is petiolate anteriorly, and has a flattened knot, longer than 

 broad. The second joint is broad, broader than long, narrowed and 

 concave anteriorly, slightly less narrowed and concave posteriorly, 

 rounded at the sides, flattened above, fmmished beneath with a blunt 

 tooth. Abdomen truncate anteriorly. 



By its mandibles this genus, otherwise closely allied to Cardiocondyla, 

 differs from all other Myrmecidm;. It differs also from Cardiocondyla 

 by its 11-jointed antennas and its mesonotum. 



Emery ia Wroughtomi, n. sp. 



5 Length 1*7 mm. Characters of the genus. Mandibles smooth 

 and shining. Head, for the most part, smooth and shining, with some 

 large, sparse, hair-pearing pits, somewhat effaced and somewhat 

 rough at the bottom. These pits are more abundant on the foi-ehead, 

 and are accompanied by a few very short and fine striations. Back 

 of thorax bounded by a faint rim. Pro-mesonotal suture 

 nearly obsolete ; meso-metanotal suture very deep, but without any 

 constriction between the meso and meta-thorax. Basal area of 

 metanotum more or less horizontal, much longer than broad. Spines 

 rather short and rather blunt. Thorax irregularly reticulate, 

 punctate, and nearly lustreless, the lateral expansions of the mesono- 

 tum give it a peculiar aspect. Abdomen and pedicle rather smooth, 

 shining, very finely and very sparsely punctate. 



The whole body, the legs, and the antennas rather abundantly fur- 

 nished with pale yellowish, rather long, pubescence, which, however, 

 does not form a nap. Erect hairs almost absolutely absent. 



Pale testaceous-yellow ; mandibles reddish ; abdomen brownish- 

 yellow. 



This curious ant (a single ? ) was found by Mr. R. C. Wroughton, 



