A REVISION OF THE GENUS PROMYRMECIA EMERY (FORMICIDAE) 121 
mesonotum higher than pronotum, highest at middle, evenly convex, dropping 
behind; excision deep and wide; epinotum evenly convex from base to foot of 
declivity. Node barely one-fifth broader than long, broadest at middle, convex 
in all directions; in profile higher than long, dome-shaped, anterior and posterior 
faces vertical and short, rounded into convex dorsum, ventral spine long, slender 
and sharp. Postpetiole one-third broader than long, broadest at basal fourth, con- 
striction deep and wide. First segment of gaster one-tenth broader than long, 
broadest at middle, sides evenly convex. Legs long and robust. 
Male and female unknown. 
Habitat —New South Wales: Pilliga (W. W. Froggatt); Narrabri (W. W. 
Froggatt). 
Queensland: Millmerran (J. Macqueen). 
In size and colour this species is similar to P. clarki from 
Western Australia. The formation of the mandibles and nodes 
readily separates them. 
Promyrmecia maloni sp. nov 
Plate XIV, fig. 43 
Worker. Length 10-11 mm. 
Black ; dorsum and sides of pronotum, epinotum and node red, edged with black 
below. Mandibles yellow, funiculus and tibiae brown, tarsi yellowish-brown. 
Basal half of mandibles smooth, apical half coarsely striate-rugose. Head with 
fine, longitudinal, widely spaced striae, clypeus and spaces between the striae finely 
and densely punctate-reticulate. Pronotum and mesonotum longitudinally striate- 
rugose, coarser and more widely spaced than on head. Epinotum and node coarsely 
but shallowly punctate-rugose, the declivity of epinotum transversely rugose, 
densely and finely reticulate-punctate between the rugae. Postpetiole superficially 
punctate-rugose, the punctures large and very shallow, finely and very densely 
reticulate-punctate throughout. Gaster and legs microscopically reticulate. 
Hair yellow, short and erect, abundant on head, thorax and legs, none on antennae, 
long and more abundant on gaster. Pubescence white, very fine and adpressed, 
most abundant on gaster and legs, on most examples the pubescence on dorsum 
of gaster is longer and yellowish, forming a slight covering but not hiding the 
sculpture. 
Head one-seventh broader than long, sides convex, occipital border concave, 
angles rounded. Mandibles not as long as head, external border feebly convex, 
inner border furnished with four large teeth and small teeth between the larger. 
Frontal carinae almost one-fourth longer than broad. Scapes just reach occipital 
border; first and third segments of funiculus equal in length, one-tenth shorter 
than second, apical one-third longer than preceding. Thorax two and one-sixth 
times longer than broad. Pronotum twice as broad as long, convex in all directions. 
Mesonotum as long as broad, circular. Epinotum one-fourth longer than broad, 
broadly rounded in front; in profile pronotum raised, evenly convex. Mesonotum 
highest in front, slightly higher than pronotum, convex and dropping behind, 
constriction between mesonotum and epinotum deep. Dorsum and declivity of 
epinotum united in a broad arch. Node slightly broader than long, almost circular; 
in profile slightly higher than long, anterior face straight and vertical, dorsum and 
posterior face convex, ventral spine short, broad and sharp. Postpetiole barely 
twice as broad as long, strongly convex in all directions, constriction sharply 
impressed, narrow. First segment of gaster broader than long, broadest behind, 
strongly convex. Legs long and robust. 
