84 
AUSTRALIAN FORMICIDAE 
Node one-third broader than long, twice as broad behind as in front, sides 
convex, angles rounded, posterior face straight ; in profile much higher than 
long, anterior and posterior faces straight and parallel, dorsum convex, 
dorsum slightly longer than posterior face, ventral spine very long and 
slender, almost four times longer than broad at base. Postpetiole two-fifths 
broader than long, strongly convex in front, sides straight, constriction 
deep and wide. First segment of gaster one-seventh broader than long, 
convex behind. Legs long and slender. 
Male and female unknown. 
Habitat. — South Australia: Kalmurina, Lake Eyre fProf. T. W Greeorv 
17.8.03). J ■ B y 
Distinguished from all the other species by the colour, 
shape of thorax, node and the very long ventral spine. 
__ Chalcoponcra fiavipes sp. nov. 
Plate XIII, Fig. 14. 
Worker. Length 4 5-5 mm. 
Head, thorax, node and first two segments of gaster green. Mandibles, 
clypeus, antennae and legs reddish yellow, apex of gaster brownish. 
Mandibles superficially striate-reticulate in the middle almost smooth near 
the edges. Clypeus longitudinally, head irregularly punctate- rugose, the 
punctures deep and densely and finely punctate-reticulate at the bottom. 
Scapes finely reticulate. Thorax and node coarsely punctate-rugose, more 
coarsely than on head, punctures wider and deeper, similarly reticulate at the 
bottom. Postpetiole very delicately striate transversely, with some shallow 
obsolete punctures. First segment of gaster even more delicately striate 
transversely. Legs shining. 
Hair yellow, short and erect on head, thorax and node, longer on clypeus 
and gaster, short and suberect on antennae and legs. Pubescence nil. 
Head barely one-seventh longer than broad, sides convex, occipital border 
straight or feebly convex, with a small but distinct crest in front, angles 
rounded. Mandibles furnished with three or four small sharp teeth on apical 
half, finely denticulate behind. Qypeus broadly convex above and in front. 
Frontal aiea small. Frontal carinae as long as broad in front. Scapes extend 
beyond occipital border by twice their thickness ; first segment of funiculus 
one-fifth longer than second, apical twice as long as the two preceding 
combined. Eyes globular, placed behind the middle sides. Thorax fully 
one-third broader than long, pro-mesonotal suture sharply impressed, meso- 
epinotal suture faintly indicated. Pronotum one and three-quarters times 
broader than long, front and sides strongly convex, dorsum convex all ways. 
Mesonotum one and three-fifths times broader than long, convex in all 
directions. Epinotum almost twice as broad as long, convex laterally; in 
profile pronotum raised high and convex from apex to base, mesonotum flatly 
convex, dorsum of epinotum short and straight, one-fifth shorter than 
declivity face, declivity straight sloping at an obtuse angle. Node one-third 
broader than long, front and sides strongly convex, weakly convex behind, 
dorsum convex laterally; in profile one-third higher than long, one-fifth 
longer below than on top, anterior face straight sloping backward, posterior 
face vertical, dorsum feebly convex, as long as posterior face, ventral spine 
short, sharp and curved backward, placed at the anterior edge of a broad 
