new Ants from Australia. 435 
faintly metallic, but otherwise entirely without the metallic 
green, blue, or red of violacea. Gaster less shining than in 
violacea, 
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 
the type. 
Townsville and Magnetic Island (Hill, nos. 152, 71, 77). 
Type. W. C.-C, eoll. 
Mayr says of convera: “‘Mandibule ...... margine 
masticatorio acuto, hand dentato, partim indistincte crenu- 
lato.” Both violacea and var. 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. 
Rhytidoponera ( Chalcoponera) aspera, Roger. 
Q (hitherto undescribed). Length 9 mm. 
Colour like the %, but the red is rather more pre- 
dominant over the metallic green than in the 3. 
Head somewhat broader and eyes are larger than in 3. 
Scape not so long proportionately. The sculpture on 
scutellum and scutum tends to become longitudinally 
rugose, Otherwise like the 3. 
Wings pale brown and iridescent. 
& (hitherto undescribed), Length 7°5 mm. 
Head and thorax black without metallic sheen, petiole 
and gaster red-brown, legs and antenne and apex of man- 
dibles castaneous. 
Mandibles triangular, with a large terminal and numerous 
small teeth. Antenne long, reaching beyond base of 
gaster. The scapes do not quite reach the back of eyes ; 
the scape is three to four times as long as the first joint of 
fiuniculus, which is broader than long; second joint the 
longest, slightly longer than the apical, the joints gradually 
diminishing to the apical, and all of them very long and 
cylindrical. Eyes large, placed obliquely in centre of sides. 
Clypeus raised in centre and depressed along the anterior 
border, which is convex. 
Head longer than broad, narrow in front. Occipital 
border slightly concave. 
Thorax narrower than head, depressed in centre, Mayrian 
and parapsidal furrows distinct. Declivity of epinotum 
plane. 
Node from above more than twice as long as broad, the 
sides concave anteriorly. In profile it is depressed an- 
