NEW AUSTRALIAN ANTS. 
broader than long. Sides and anterior border of pronotum convex, anterior 
angles bluntly rounded, a short sharp tooth at each side of mesonotum, 
directed outward. In profile anterior edge and sides of pronotum submarginate, 
angles blunt and submarginate downward midway to inferior angle, latter 
bluntly rounded. Mesonotal spine short, directed upward. Epinotum convex, 
rounded into declivity, spines long and sharp, directed upward and backward. 
Node almost twice as long as petiole, as long as broad, with a long sharp spine 
on each side in front, and indication of a spine at centre of front ; in profile 
the anterior face at an oblique angle, convex, with a sharp spine at each side, 
longer than thick at base, directed backward, dorsum inclined backward, 
straight ; ventral surface concave, with indications of a tubercle in front. 
Postpetiole broader than long, oval, in profile evenly convex above. Gaster 
slightly longer than broad, oval. Legs robust, femora thickened near middle. 
Female. — Length, 4.5 mm. 
Colour, sculpture and pilosity similar to worker. Eyes larger. Ocelli 
prominent but placed in small pits. From above the pronotum broadly 
convex in front and sides, no trace of anterior angles. Mesonotum as long as 
broad. Scutellum as long as broad, circular. Spines on epinotum similar 
but further apart. In profile pronotum submarginate in front, concave below, 
convex above. Anterior superior angle feebly denoted, inferior angle bluntly 
rounded. Mesonotum convex above, without trace of spines. Scutellum 
convex above, overhanging metanotum and base of epinotum. Metanotum 
convex, narrow. Epinotum and declivity combined, convex, almost vertical, 
concave below, spines stout and sharp, as long as broad at base. Nodes, gaster 
and legs similar. Wings missing. 
Habitat . — Victoria : Ferntree Gully (C. Barrett and J. Clark). 
Readily separated from L. punctiventris Wheeler, the only 
other Australian species in the genus, by the colour as well as 
by the shape of the nodes. 
Subfamily Dolichoderinae Forel 1878. 
Genus BOTHRIOMYRMEX Emery 1865. 
Bothriomyrmex wilsoni, sp. nov. 
(PI. Ill, fig. 5.) 
Worker. — Length, 3.5 mm. 
Brownish yellow ; mandibles, clypeus, antennae and legs lighter. 
Shining, microscopically punctate throughout, larger on head than else- 
where. Clypeus smooth, mandibles very finely striate. 
Hair yellow, short and erect, confined to mandibles, clypeus and apex of 
gaster. Pubescence yellow, very fine and adpressed. 
Head slightly longer than broad, sides convex, occipital borders straight, 
angles rounded. Mandibles furnished with four strong sharp teeth, apex long 
and sharply pointed. Clypeus convex above, produced and convex in front. 
Frontal area elongate triangular. Frontal carinae diverging behind. Scapes 
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