NEW AUSTRALIAN ANTS. 
Shining. Mandibles very finely striate longitudinally. Head and thorax 
finely reticulate, having a circular direction, on pronotum and mesonotum. 
Node and gaster smooth. 
Hair yellow, long, erect, very sparse throughout. Pubescence very fine 
and adpressed, abundant on antennae, sparse on legs, hardly apparent on body. 
Head a fraction longer than broad, much broader behind than in front, 
sides and occipital border convex, angles broadly rounded. Mandibles tri- 
angular, furnished with eight strong, sharp teeth. Clypeus produced, the anterior 
border straight in middle. Frontal area transversely triangular. Frontal 
carinae one-fourth broader than long. Scapes extending beyond occipital 
border bv one-fifth their length ; first segment of funiculus as long as the 
three following together, second to ninth as broad as long, tenth slightly 
longer than broad, apical as long as the two preceding together. Eyes large, 
convex, placed about three-quarters of their length from anterior angle. Ocelli 
large. Thorax one and three-quarters times longer than broad. Pronotum 
one and two-thirds times broader than long, strongly convex, suture strongly 
impressed. Mesonotum almost circular, slightly broader than long. Con- 
striction between meso- and epinotum wide and deep, the spiracles placed on 
top at sides of the depression. Epinotum slightly broader than long, strongly 
convex, posterior border almost straight. In profile pronotum and mesonotum 
convex, suture hardly indicated. Spiracles prominent in meso-epinotal 
depression. Epinotum strongly convex, rounded into declivity, the latter 
longer than dorsum. Node oval, fully twice as broad as long, convex laterally ; 
in profile almost twice as high as long, anterior and posterior faces feebly 
convex, almost parallel, rounded into dorsum ; a short blunt tooth in front 
below. Gaster one and two-third times longer than broad. Legs slender. 
Worker minor. — Length, 3-3.3 mm. 
Colour, sculpture and pilosity as in major from which it differs as follows: 
Head one-seventh longer than broad, sides and occipital border strongly 
convex. Mandibles slightly longer and narrower. Scapes extending beyond 
occipital border by one-fourth their length. Dorsum of thorax similar, but in 
profile the epinotum higher and more convex. The node a little more slender, 
more pointed above. 
Habitat.— N.S. Wales : Barrington Tops (H. J. Carter). Victoria : King- 
lake (T. Greaves). 
Myrmecorhynchus nitidus, sp. nov. 
(PI. Ill, fig. 13-16.) 
Worker major .• — Length, 5.5 mm. 
Black. Mandibles and clypeus yellow, the latter with a blackish patch 
on the middle behind ; antennae, trochanters, tibiae and tarsi reddish-yellow. 
Many examples have the apex of mandibles darker. 
Smooth and shining, microscopically reticulate throughout. 
Hair yellow, very sparse, short and erect. Pubescence absent except on 
funiculus where it is short and depressed. 
Head very slightly longer than broad, broader behind than in front, sides 
convex, posterior border feebly convex, almost straight. Mandibles almost 
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