NEW AUSTRALIAN ANTS. 
Mandibles fully half the length of head, broader near apex than at base, terminal 
border short, edentate. Clypeus greatly produced and bluntly pointed in 
front, a strong central carina above extending from apex to between frontal 
carinac, the latter approximate, parallel, not hiding the antennal insertions 
in front. .Scapes extending beyond occipital border by fully one-third of their 
length ; second segment of funiculus one-third longer than first, the others 
subequal to apical which is as long as second. Eyes large, moderately convex, 
placed at middle of sides. No ocelli. Thorax fully two and a half times 
longer than broad, strongly convex in front and on the sides. Pronotum 
one-fourth broader than long. Mesonotum almost twice as broad as long, 
sutures well defined. Epinotum longer than broad, narrow above, almost 
ridged in front. In profile convex longitudinally, the meso-epinotal suture 
deep and wide, declivity short and abrupt, rounded into dorsum. Node fully 
one-third longer than broad and twice as broad behind as in front, sides straight, 
anterior and posterior borders convex : in profile as high as long, higher behind 
than in front, the anterior and posterior faces vertical for half their height, 
then broadly rounded into dorsum, giving a somewhat dome-shaped appear- 
ance ; a long sharp tooth-like process in front below directed backward. 
Postpetiole bell-shaped, slightly longer than broad, strongly convex ; a deep 
constriction between it and first segment of gaster, the latter broader than 
long. Legs long and slender. 
Habitat. — N. S. Wales : Cascade (F. E. Wilson). Queensland: National 
Park (H. Hacker, Dec., 1919). 
Subfamily Myrmicinae Lepeletier 1836. 
Genus PODOMYRMA Smith 1858. 
Podomyrma tricolor, sp. nov. 
(PI. II, fig. 1.) 
Worker. — Length, 11-13 mm. 
Head ferruginous ; antennae, thorax, nodes, legs, apex of first and the 
whole of three apical segments of gaster chocolate brown ; first segment of 
gaster yellow ; teeth of mandibles black. 
Mandibles finely striate, head, including clypeus, strongly and somewhat 
coarsely striate longitudinally. Pronotum transversely striate, mesonotum, 
epinotum, sides of thorax, and postpetiole longitudinally striate, coarser than 
on head, declivity and top of node smooth and shining, sides of node longitudi- 
nally striate. Gaster smooth and shining, with fine short longitudinal striae 
at base, not reaching to anterior fourth of segment. 
Hair yellowish, long and erect, moderately abundant, shorter on antennae 
and legs. Pubescence confined to apex of antennae. 
Head slightly longer than broad, very slightly broader behind than in 
front, sides straight, occipital border convex, angles rounded. Mandibles 
furnished with seven strong sharp teeth. Clypeus short. Anterior border 
straight or feebly concave. Frontal area large, triangular. Frontal carinae 
rather Hat, slightly longer than broad in front. Scapes not reaching the 
occipital border by one-third their length ; first to seventh segments of 
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