AUSTRALIAN FORMICIDAE 
83 
funiculus equal in length, apical as long as the two preceding combined. 
Eyes globular, placed behind the middle of sides. Thorax twice as long 
as broad, pro-mesonotal suture sharply impressed, meso-epinotal suture 
indicated. Pronotum one-fourth broader than long, convex in all directions, 
a slight depression on sides. Mesonotum one-fourth broader than long, 
convex in all directions. Epinotum barely as long as broad, convex laterally ; 
in profile pronotum raised and convex from apex to base, pro-mesonotal 
suture deep and sharp. Mesonotum flatly convex, meso-epinotal suture 
faintly impressed. Epinotum feebly convex, almost straight from base to 
front of declivity. Node barely twice as broad as long, oval, convex trans- 
versely; in profile twice as high as long, anterior and posterior faces 
vertical, parallel, dorsum flatly convex, edges sharply rounded ; ventral 
spine short, slender and sharp. Postpetiole almost one-fourth broader than 
long, cone-shaped in front, constriction wide but shallow. First segment 
of gaster almost as long as broad, broadest in front. Legs long, rather 
slender. 
Habitat. — Northern Territory. Alexandria station (T. Greaves). 
Genus CHALCOPONERA Emery. 
Ann. Mus. Stor. Nat., Genova, xxxviii, p. 548, 1897. 
Chalcoponera viridis sp. nov. 
Plate XIII, Fig. 13. 
Worker. Length 6 5-7 mm. 
Head, thorax and gaster bright metallic green ; mandibles, antennae and 
legs brown. 
Mandibles very finely striate-rugose longitudinally. Head longitudinally 
rugose on the middle, irregularly punctate-rugose on sides and behind. Scapes 
finely and densely striate-reticulate. Thorax and node coarsely punctate- 
rugose, the punctures large and deep, finely and densely reticulate at the 
bottom. Postpetiole transversely arched striate and with numerous large 
shallow punctures, more abundant in front than behind. First segment of 
gaster very finely and densely striate-reticulate circularly, almost trans- 
verse in front. Legs finely reticulate. 
Hair yellow, long and erect, abundant throughout, ^shorter and suberect on 
antennae and legs. Pubescence apparent only on antennae. 
Head very slightly longer than broad, sides convex, occipital border concave, 
angles rounded. Mandibles furnished with numerous small sharp teeth. 
Clypeus convex above, produced and straight or feebly concave in front. 
Frontal area small, triangular. Frontal carinae as long as broad behind. 
Scapes extend beyond occipital border by twice their thickness; first and 
second segments of funiculus equal length, one-fifth longer than third, apical 
as long as the two preceding combined. Eyes large, globular, placed behind 
the middle of sides. Thorax one-third longer than broad, pro-mesonotal 
suture sharply defined, meso-epinotal suture faintly indicated. Pronotum 
twice as broad as long, sides and front strongly convex, concave behind, 
dorsum flatly convex. Mesonotum fully one-fourth broader than long, 
convex in all directions. Epinotum as long as broad, convex laterally; in 
profile pronotum raised abruptly, convex, dorsum of pronotum, mesonotum 
and epinotum evenly convex to foot of declivity, sutures feebly impressed. 
