ANTS FROM THE OTWAY RANGES. 
the mesonotum raised above the level of pronoturn and epinotum, the latter 
distinctly concave in the middle, the sutures deeply impressed ; epinotal 
declivity rounded into dorsum, the lateral borders submarginate. Node twice 
as broad as long, front and sides united in one convexity, posterior face flat ; 
in profile twice as high as long, twice as long at the base as on top, anterior 
face vertical, posterior face stmight, inclined forward, dorsum convex ; a 
broad flat plate-like projection in front, longer than high. Postpetiole broader 
than long, anterior face straight and truncate, sides convex. A distinct 
constriction between postpetiole and first segment of gaster, the latter broader 
than long, strongly convex on sides. Legs short and stout. 
Female. — Length, 3.8 mm. 
Differs from the worker as follows: Head broader behind than in front. 
Eyes large, placed about their diameter from the anterior angle of head. 
Ocelli large. Mesonotum flattened above, parapsidal furrows deeply impressed. 
Epinotal declivity almost twice as long as dorsum. Node much more slender, 
almost sharp above. Wings missing. 
Habitat . — Gellibrand ; under logs. 
P oner a rectidens, sp. nov. 
(PI. IV, fig. 14.) 
Worker. — Length, 2.5 mm. 
Black ; mandibles, clypeus, antennae and legs dull reddish yellow. 
Mandibles and clypeus shining, finely and sparsely punctate. Head very 
densely and finely punctate, rest of body shining, with very fine, shallow, 
scattered piligerous punctures. 
Hair yellow, long and erect, abundant only on gaster, not apparent else- 
where. Pubescence yellow, rather long and adpressed, abundant throughout, 
shorter on antennae and legs. 
Head one-fourth longer than broad, slightly broader behind than in front, 
sides convex, occipital border straight or feebly concave, angles rounded. 
Mandibles not half the length of head, terminal border long, furnished with 
three strong sharp teeth in front, three or four obsolete teeth behind. Clypeus 
short, broadly rounded and feebly produced in front, carinate on top behind, 
the carinae feeble and somewhat bifurcated in front. Frontal carinae approxi- 
mate, short and narrow, separated by a very feeble suture which is not continued 
behind. Scapes just reach occipital border ; first segment of funiculus as long 
as the three following, others subequal to apical which is twice as long as broad 
and longer than the three preceding together. Thorax barely twice as long 
as broad. Pronotum one-third broader than long, strongly convex in all 
directions. Mesonotum one-fifth broader than long, almost circular. Epi- 
notum twice as long as broad on top, dorsum narrow, parallel and convex 
laterally. In profile the pronotum convex, lower than mesonotum, a sharp 
excision between the two. Mesonotum and epinotum together straight, suture 
hardly visible, declivity flat, at an acute angle, long as the dorsum, sides 
submarginate forming a distinct sharp angle at sides of superior border, middle 
of this border bluntly rounded, giving a somewhat concave appearance from 
above. Node fully three times broader than long, flat behind, sides and front 
hemispherical ; in profile one-third longer at base than on top, anterior face 
[57] 
