54 
AUSTRALIAN SPECIES OF RHYTIDOPONERA MAYR 
Rhytidoponera harnardi sp. nov. 
(PI. IV, fig. 31.) 
Worker. — Length, 8-8 5 mm. 
Bright ferrugineus throughout. 
Mandibles, scapes and tiWae very densely and delicately striate longitudi- 
nally. Head coarsely punctate-rugose, the punctures large and shining at 
bottom, three or four longitudinal rugae between frontal carinae. Thorax 
very finely and densely reticulate, coarsely punctured with large, rather deep, 
punctures shining at bottom, coarsely rugose transversely on epinotal declivity. 
Node finely and densely striate-reticulate above, transversely striate on 
anterior face. Gaster very finely and densely striate transversely, with 
numerous very small piligerous punctures. Femora finely striate-reticulate 
transversely with rather large piligerous punctures. 
Hair yellow, very long and erect, but not numerous, on clypeus and apical 
segments of gaster, very short and sparse on body, suberect on antennae and 
legs and more numerous than on body. Funiculi pubescent. 
Head one-fourth longer than broad, sides feebly convex, occipital border 
convex with a slight depression in the middle, angles rounded, a sharp crest 
follows the contour of border and angles. Mandibles strongly dentate in front, 
the teeth small behind. Clypeus broadly convex above and in front. Frontal 
area large and triangular, deep in front, shallow behind. Frontal carinae as 
long as broad in front, twice as broad in front as behind. Scapes extend 
beyond occipital border by almost half their length. Second segment of 
funiculus one-third longer than first and one-fourth longer than third, apical 
barely as long as the two preceding together. Eyes placed just behind the 
middle of sides. Thorax fully twice as long as broad, pro-mesonotal suture 
strongly impressed, meso-epinotal suture weakly impressed. Pronotum as 
long as broad, sides parallel, slightly concave in middle, dorsum feebly convex 
transversely. Mesonotum longer than broad, strongly convex in all direc- 
tions. Epinotum strongly convex transversely. In profile the sutures strongly 
impressed. Pronotum sloping downward in front, flattened, but rounded 
downward at each end. Mesonotum evenly convex, abruptly truncate behind 
and higher than epinotum. Anterior two-thirds of epinotum convex, posterior 
third straight dropping downward behind, feebly rounded into declivity, the 
latter straight, one-third shorter than dorsum. Node one-fourth broader than 
long, strongly convex in all directions, anterior edge sharp. In profile 
one-third higher than long, anterior face straight and vertical, posterior face 
straight inclined forward above, dorsum slightly longer than posterior face 
straight, sloping downward behind, both edges short, the ventral spine short’ 
slender and sharp. Postpetiole one-fifth broader than long, cone-shaped sides 
feebly convex. First segment of gaster one-fourth broader than long, strongly 
convex behind. The constriction between the two segments broad and 
shallow. Legs long and robust. 
Male. — Unknown. 
Habitat. — Northern Queensland: Cape York (W. B. Barnard, 1927). 
Rhytidop)onera carinata sp. nov. 
(PI. IV, fig. 32.) 
Worker. — Length, 7 mm. 
throughout, scapes and occipital crest darker. 
Mandibles and scapes very finely and densely striate longitudinally. Clypeus 
