NEW AUSTRALIAN ANTS. 
apical which is twice as long as the preceding. Thorax one and three-quarters 
times longer than broad, as broad in front as behind, strongly constricted at 
mesonotal region ; anterior border of pronotum convex and feebly margined, 
sides strongly convex and margined. Mesonotal sutures very feebly indicated, 
the sides not margined. Epinotum strongly convex and margined. In profile 
the thorax convex longitudinally, the declivity short and steep, flat, the sides 
margined. Node broader than long, anterior border straight, submarginate, 
the sides strongly convex and margined, posterior border one-third shorter 
than anterior, deeply concave, terminating in teeth-like angles behind, raised 
slightly upward ; in profile slightly longer than high, the dorsum flat, or very 
feebly convex, anterior face vertical ; the ventral surface with a short, broad, 
bifid projection directed backward. Postpetiole one-third broader than long, 
broader behind than in front. Pygidium feebly concave, sides submarginate, 
carrying a row of short, sharp, brown bristles. Legs robust ; posterior coxae 
with a broad translucent lamina on top behind. 
Habitat . — South Australia. Type in British Museupi (F. Smith collection). 
Near P. her os Wheeler, from Queensland. Readily dis- 
tinguished by the shape of the head, thorax, node and post- 
petiole, as well as by the colour. 
It is interesting to note that of the forty species contained 
in this genus the workers of three are provided with ocelli. In 
the present work other four of this ocellied group are added, 
making a total of seven. With the exception of P. greavesi n. sp. 
all are large and appear to form a distinct group. The sexes, 
however, cannot be separated from those of the non-ocellied 
group. 
Phyracaces pictus, sp. nov. 
(PL II, fig. 3.) 
Worker. — Length, 8.8 mm. 
Mandibles, thorax and node red ; head brown ; antennae, legs and post- 
petiole blackish brown ; eyes, margins of head, thorax, nodes and whole of 
gaster black. 
Smooth and shining, with scattered, shallow piligerous punctures. Man- 
dibles strongly punctate, front of face finely reticulate. 
Hair reddish yellow, long, suberect, abundant throughout, particularly at 
apex of gaster, rather long and erect on antennae, shorter and adpressed on 
legs. Pubescence whitish, very fine and adpressed, apparent only on antennae 
and legs. 
Head as long as broad, broadest behind, sides and occipital border convex, 
angles strongly rounded. Mandibles edentate. Clypeus very short and abrupt. 
Frontal carinae short, erect and rounded, truncate behind. Carinae of cheeks 
prominent. Eyes large and convex, slightly in front of middle of sides. Ocelli 
prominent, anterior largest. A strong carina extends from the inferior-posterior 
angle to posterior margin qf eye. Scapes extending beyond posterior border 
of eyes by their thickness at apex ; first to sixth segment of funiculus longer 
than broad, seventh to tenth as broad as long, apical barely as long as two 
preceding together. Thorax barely one and three-quarters times longer than 
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