86 
AUSTRALIAN FORMICIDAE 
Chalcoponera pulchra sp. nov. 
Plate XIII, Pig. 16. 
Worker. Length 4 -5-5 -5 mm. 
^ Head bright metallic violet, thorax and node bright metallic coppery 
violet, postpetiole and gaster bright metallic bluish violet. Mandibles, 
funiculi and tarsi reddish brown, scapes and legs blackish brown. 
Mandibles very finely striate longitudinally, with large shallow punctures 
on disc. Clypeus longitudinally rugose. Head longitudinally punctate- 
rugose, the rugae diverging outward behind. Scapes finely striate longitu- 
dinally. Pronotum and mesonotum coarsely punctate-rugose, the punctures 
large and shallow, shining at the bottom ; epinotum more transversely 
punctate-rugose. Postpetiole finely and densely striate, transversely arched, 
with some scattered obsolete punctures. First segment of gaster more 
delicately striate transversely. 
Hair yellow, long and erect but not abundant, shorter, finer and suberect 
on antennae and legs. Pubescence nil. 
Head a fraction longer than broad, sides convex, occipital border straight, 
crest sharp slightly raised, angles sharply rounded. Alandibles furnished 
With large sharp teeth. Clypeus broadly convex above and in front. Frontal 
area small, triangular. Frontal carinae almost twice as long as broad in 
front, parallel, raised; head slightly depressed on outer sides of carinae. 
bcapes extend beyond occipital border by barely their thickness ; first segment 
of funiculus orie-third longer than second, remainder gradually increasing 
m thickness, apical as long as the two preceding combined. Eyes small and 
globular, placed at middle of sides. Thorax one and one-third times longer 
than broad, pro-mesonotal suture sharply impressed, meso-epinotal suture 
faintly indicated. Pronotum almost twice as broad as long, sides and front 
strongly convex, dorsum flatly convex. Mesonotum one-third broader than 
long, oval, convex transversely. Epinotum one-fourth broader than long, 
convex transversely; in profile strongly and evenly convex from apex of 
pronoturn to apex of epinotal declivity, pro-mesonotal suture sharply 
impressed meso-epinotal suture indicated. Node one and one-half times 
broader than long, broadest behind, convex in front, straight behind; in 
prohle higher than long, anterior face vertical, convex and rounded into 
dorsum, posterior face vertical and straight, shorter than dorsum, top edge 
steep, ventral process one-third longer than broad, with a shallow puncture 
near the anterior edge, a long sharp spine in front directed very slightly 
forward. Postpetiole almost one-third broader than long, convex in front 
and on sides, constriction deep and wide. First segment of gaster slightly 
broader than long, convex behind. Legs slender. 
Male and female unknown. 
Habitat. — Western Australia: Forrest (C. L. Barrett, April, 1930). 
The colour, shape of the thorax and node separate this 
from all the known species. 
Chalcoponera brimnea sp. nov. 
Plate XIII, Fig. 17. 
Worker. Length 4-4 5 mm. 
Head, thorax and node chocolate brown, gaster darker, mandibles yellow. 
Mandibles very finely striate longitudinally. Clypeus coarsely rugose 
