132 Mr. W. C. Crawley 07i Ants from 



No. 215 c. Rhytidoponera (s. str.) incisx, ."^p. n. 



$ .— L. 10-10-5 mm. 



Mandibles striate, feebly and irregularly dentate. Frontal 

 area very distinct, triangular. Head somewiiat longer than 

 broad, feebly convex at sides, witli a small oblong impression 

 on the vertex. Eyes very convex, placed behind the centre 

 of sides. Posterior angles of head formed into blunt points. 

 Thorax convex, sutures distinct. Pronotum with a small 

 tooth at each inferior angle. Node of pedicel rounded, 

 broadei- than long, notched at tlie top. (31a\\ s with one tooth. 



Clypeus feebly rugose and finely reticulate ; front and 

 vertex longitudinally rugose, the ridges spreading fanvvise to 

 the posterior angles of tlie head, leaving a space between not 

 rugose; cheeks near base of mandibles somewhat rugose. 

 Head, thorax, and pedicel with shallow irregular punctures ; 

 whole of body and legs finely reticulate, the reticulation 

 extending to the bottom of the punctures. Antennal scapes 

 and tarsi longitudinally striate ; a few punctures on coxse 

 and very indistinct ones on first segment of gaster. 



Pilosity almost nil ; stiff hairs along the tibiaj and a few 

 under the coxEe and femora. 



Dull black ; mandibles, legs, and antennae dark reddl&li 

 brown, apical joints of funiculi and tarsi dull red. 



Alice Springs, Central Australia, 1913. 



No. 30. Rhytidoponera (? Chalcoponera) duhia, sp. n. 



^ . — L. 4-6 mm. 



Mandibles triangular, finely striate, with minute teeth, 

 apical tooth long and pointed. Clypeus feebly arched at 

 anterior border, w^th a median ridge reaching to the posterior 

 border, the latter narrowly rounded between the frontal 

 carina?. Frontal carinse wide apart in front, converging 

 slightly behind the lobe, then parallel. Frontal area not very 

 distinct. Eyes large (larger than in metallica), hemispheri- 

 cal, placed slightly behind the middle of sides of head. Head 

 longer than broad. First joint of funiculus as long as the 

 second, which is less than twice as long as broad ; funiculus 

 slighily thicker at apex, but not clubbed. The scapes extend 

 slightly beyond the occipital border. Head longer than 

 broad, very slightly convex at sides, emarginate behind. 

 Thorax slightly convex, at each inferior angle of prothoi'ax 

 is a small tooth ; pro-mesonotal suture distinct, breaking the 

 sculpture, suture meso-epinotal almost entirely effaced. 

 Node of pedicel rounded, slightly longer than broad, under- 



