neio Ants from Auslralia, 435 



faintly metallic, but otherwise entirely without the metallic 

 green, blue, or red of violacca. Gaster less shining than in 

 V to lace (I. 



The posterior angles of head are somewhat less rounded, 

 and the sculpture of the pronotum rather coarser, and the 

 first segment of gaster distinctly more finely striated than in 

 tlie type. 



Towns ville and iNIagnetic Island {Hill, nos. 152, 71, 77). 



Type W. C. C. coll. 



Mayr says of convexa : " Mandibula? margine 



inasticatorio acuto, hand dentato, partim indistiucte crenu- 

 lato/' Both viulacea and v&r. subumbrata have two or three 

 very distinct but small teeth, the spaces between them and 

 the rest of the border bearing distinct though minute 

 teeth. 



Rhytidnponera {Chalcoponera) aspera, Roger. 



? (Iiitherto undeseribed). Length 9 mm. 



Colour like the $ , but the red is rather more })re- 

 dominant over the metallic green than in the § . 



Head somewhat broader and eyes are larger tban in g . 

 Scape not so long proportionately. The sculpture on 

 scutellum and scutum tends to become longitudinally 

 rugose. Otherwise like the ^ . 



Wings pale brown and iridescent. 



(^ (hitherto undeseribed). Length 7*5 mm. 



Head and thorax black without metallic sheen, ])etiole 

 and gaster red-brown, legs and anteni.;e and ape.x of man- 

 dibles castaneous. 



Mandil)lcs triangular, with a large terminal and numerous 

 small teeth. Auteunte long, reaching beyond base of 

 gaster. The scapes do not quite reach the back of eyes ; 

 the scape is time to four times as long as the first joint of 

 funiculus, which is broader than long ; second jcjiut the 

 longest, slightly longer than the a[)ical, the joints i^radualiy 

 diminishing to the apical, and all of them verv long and 

 cylindrical. Eyes large, placed obli([uely in centre of sides. 

 Clypeus raised in centre and depressed along the anterior 

 border, which is cojivex. 



Head longer than broad, narrow in front. Occipital 

 border slightly concave. 



Thorax narrower than head, depressed in centre, ^lavrian 

 and parapsidal furrows distinct. Declivity of epinotum 

 plane. 



Node from above more tban twice as long as broad, the 

 sides concave anteriorly. In profile it is depressed an- 



