SOME NEW AUSTRALIAN ANTS. 87 
erect hairs only on the under surface. The whole body furnished with long hairs, 
dark on thorax, yellow and particularly long and abundant on the scale and gaster. 
The ¢?, doubtfully attributed to this species by Mayr, is consider- 
ably larger, measuring 10 mm. in length, and black in colour, whereas 
the above-described insect is similarly coloured to the %, which it 
resembles otherwise very closely. It was taken with the whole nest 
of %s under a stone (Nest EK) on Aug. Ist, 1914, Picton Junction, nr. 
Perth, W. Australia. It is noteworthy that a single specimen, with- 
out &s, of Mayr’s ?, was taken in the Perth district by H. M. Giles 
in 1914y about the same time, and 1 ¢ with 5 gs (Mayr) also with- 
out %s, on Aug. 3rd, 1914. 
The 3 taken in a different nest of H. lutea, and which I hope to 
describe later, is also entirely different in size and form from the ¢ 
described by Mayr as belonging to this species. 
(2) Rhytidoponera (sensu stricto) foreli, sp.nov. %. 
L. 5:7 mm. 
: Dark brown, almost black; mandibles, seapes, legs and apex of gaster red- 
rown. 
Head much longer than broad, with feebly convex sides, widest at cheeks, 
narrowest at occiput, which i8 deeply emarginate and produced into acute angles. 
Mandibles large, broad, and minutely denticulate, the denticles increasing in 
size towards the apex. Clypeus convex, with the anterior border obtusely angu- 
late; frontal area deeply impressed. Frontal carinae converging behind, with a 
small angle in the middle at each side; they extend half way to the occiput. The 
antennal scapes extend for nearly half their length beyond the occiput; the second 
joint of funiculus somewhat longer than the first, and more than twice as long as 
broad ; all the joints are longer than broad, the last twice as long as the penulti- 
mate. Eyes situated immediately behind the middle of the sides of the head, 
medium-sized, and very prominent. 
Thorax hardly, if at all, wider in front than behind; pro-mesonotum only 
slightly convex ; there is a slight emargination between the meso- and epinotum. 
Pro-mesonotal suture distinct and angular. Teeth at the inferior angles of pro- 
notum small. Base of epinotum nearly flat, passing by a very obtuse angle to the 
declivity, which is shorter than the base, and hollowed to receive the petiole. The 
node of the latter viewed from above, broader than long, with convex sides ; viewed 
from the side, slightly higher than the angle of the epinotum, rounded and some- 
what narrower at top, and underneath in front armed with an acute, almost 
vertical, spine. First segment of gaster rounded in front, where it is narrower 
than behind, shorter than the second segment. The ventral lamella of first gastric 
segment is produced into a blunt projection beneath the petiole. 
Mandibles finely and densely striated longitudinally. Clypeus coarsely reticu- 
late-punctate, the bottom of the punctures perfectly smooth and shining, without 
‘any trace of reticulation; on the occiput the punctures have a tendency to merge 
into each other. The whole of the back of thorax sculptured like the vertex, with 
the exception of the front of the pronotum, which has a few irregular transverse 
lines. The sculpture on the sides of the thorax becomes finely reticulate in patches. 
Scapes and anterior tibiae finely striate longitudinally, the anterior coxae circularly 
striate. Node of peticle coarsely rugose transversely, but the sculpture is less 
coarse than that on the thorax. 
First segment of gaster finely striate transversely, the striae on the base of the 
segment semicircular, curving round the sides until they reach the anterior mar- 
gin ; second segment very superficially striate, the lines assuming more of a horse- 
shoe form than those on the first segment. The remaining segments faintly 
reticulate. 
The whole body covered with short erect hairs; scapes and tibiae with short 
erect hairs; apical section of gaster fringed with longer hairs. The effect of the 
polished sculpture is to give the whole insect a shining appearance under a lens. 
v 
Koolpinyah, Northern Territory, 1915 (G. F. Hill). No. 589. 
