AUSTRALIAN FORMICIDAE 
79 
which it is separated by a sharp ridge. Node one and three-quarters times 
broader than long, oval ; in profile almost twice as long as high, hemispherical. 
Postpetiole one-fifth broader than long, broadest behind, sides convex, anterior 
edge straight, angles rounded ; constriction between postpetiole and first 
segment of gaster deep and wide. First segment of gaster one-third broader 
than long, broadest behind, sides strongly convex. Genitalia retracted; legs 
long and slender. 
Habitat. — Victoria: Red Cliffs (Miss G. Claringbull). 
In size and colour somewhat similar to N. potteri but sepa- 
rated by the shape of the head and nodes. 
N eophyracaces macrops sp. nov. 
Plate XIII, Fig. 8. 
Worker. Length 6 mm. 
Bright ferruginous throughout ; eyes, ocelli and margins of thorax and node 
black. 
Smooth and shining, microscopically reticulate throughout, with numerous 
shallow scattered piligerous punctures. 
Hair yellow, erect, long and rather abundant, shorter on antennae and legs. 
Head one-ninth longer than broad, almost as broad in front as behind, sides 
and occipital border feebly convex, angles rounded. Mandibles large, furnished 
with numerous very small sharp teeth. Frontal carinae erect, converging 
gradually behind, one-third longer than broad in front. Carinae of cheeks 
short and sharp, extend backward level with frontal carinae. Eyes large, 
rather flatly convex, placed at middle of sides. Ocelli large and convex. 
Scapes short, not extending to the posterior margin of eyes by fully their 
thickness: first segment of funiculus longer than broad, second to eighth 
broader than long, apical bluntly pointed, longer than the two preceding 
combined. Thorax twice as long as broad, feebly constricted at mesonotal 
region, pro-mesonotal and meso-epinotal sutures indistinct. Pronotum one- 
fourth broader than long, sides and front convex, angles bluntly rounded. 
Mesonotum one-third broader than long, sides straight. Epinotum one-third 
broader than long, sides strongly convex, posterior border straight or feebly 
convex, angles sharp, all edges of thorax sharply margined ; m profile evenly 
convex from apex to base, pronotum truncate in front, epinotal declivity feebly 
concave, sides margined, separated from dorsum by a sharp ridge. Node 
one-fifth broader than long, sides convex, sharply margined, anterior border 
concave, angles sharp, posterior border convex, the angles produced backward 
and curved inward as broad flat spines half as long as broad at base ; in profile 
anterior face straight, sharply margined on sides, superior angle sharp, 
dorsum convex, highest behind middle, margin sharp, ending behind in a 
slender spine directed backward and slightly upward. Postpetiole one-fifth 
broader than long, broadest behind, sides and front feebly convex, angles 
bluntly rounded ; constriction between postpetiole and first segment of gaster 
deep and wide. First segment of gaster one-third broader than long, strongly 
convex. Legs long and robust. 
Habitat.— Victoria: Patho (H. A. Potter). 
A small colony was found whilst they were robbing a nest 
of Iridomyrmex rufoniger Lowne. 
G 
