NEW AUSTRALIAN ANTS. 
Head as long as broad, almost circular. Mandibles furnished with twelve 
small teeth. Clypeus broad, convex above with a slight longitudinal depression 
extending to anterior border, latter strongly convex, with a slight concave 
indention at the middle. Frontal carinae diverging strongly behind, not 
covering the antennal insertions. Scapes extending beyond occipital border 
by one-fourth their length ; first segment of funiculus one-third longer than 
second, second to fifth longer than broad, sixth to eleventh at least as broad 
as long, apical pointed, one-fourth longer than broad. Eves small, circular, 
placed at middle of sides. The anterior ocellus only is present. Thorax one 
and three-fourths times long as broad. Pronotum twice as broad as long, 
broader in front than behind, the anterior angles produced forward as broad, 
short, blunt spines, as long as their width at base, dorsum convex laterally 
behind. Mesonotum circular, as long as broad, separated from epinotum by 
a deep and wide constriction, spiracles placed almost on dorsum. Posterior 
border with two long broad spines directed laterally, almost at right angles, 
their posterior margins slightly concave. In profile pronotum strongly convex, 
the spines short and blunt, directed forward. Suture deeply impressed. 
Mesonotum strongly convex. Meso-epinotal suture deep and wide. Epinotum 
feebly concave at the middle, rounded into declivity, both about same length, 
spines short and thick, directed very slight backward. Node three times 
broader than long, concave in front, convex behind and on sides ; in profile 
very low, equal to half the height of epinotal declivity. Gaster large, longer 
than broad. Legs short and robust. 
Habitat. — N.S. Wales : Mt. Victoria (F. E. Wilson, Oct. 1930). 
Taken in the nest with workers. The specimen has no 
traces of either scutellum or wing sclerites. 
Subfamily Formicinae Lepeletier 1836. 
Genus MYRMECORHYNCHUS Andre 1896. 
Myrmecorhynchus emeryi Andre. 
(PI. Ill, fig. 7-8-9.) 
Andre, Rev. d’Ent. xv, p. 254, 1896, 'i . 
Emery, Rend. Accad. Sc. Bologna, N.S. 2, p. 237, figs. 9-10, 1898, § . 
Wheeler, Trans. Roy. Soc. S. Aust. xli, p. 16, pi. 1, figs. 1-4, 1917, § , 4. 
Female. — Length, 6-6.5 mm. (not previously described). 
Head yellowish red ; mandibles darker ; thorax, node, gaster and femora 
brownish ; scapes, coxae, trochanters, and tibia yellow ; funiculus and tarsi 
darker. 
Mandibles very finely and densely striate, with large scattered punctures. 
Clvpeus coarsely and irregularly striate. Head finely and densely reticulate. 
Pronotum and mesonotum more superficially reticulate. Scutellum smooth 
and shining. Epinotum finely transversely striate-reticulate. Node finely 
reticulate. 
Hair yellow, long and erect, abundant throughout, shorter and oblique on 
antennae and legs. Pubescence not apparent except on funiculus. 
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