A REVISION OF THE GENUS PROMYRMECIA EMERY (FORMICIDAE) 99 
and node bright red, mesonotum and epinotum reddish-brown, postpetiole and 
gaster black, legs brown, tarsi reddish. 
Mandibles coarsely striate obliquely, the striae very large. Head longitudinally 
striate, some large shallow punctures between the striae. Pronotum and mesonotum 
longitudinally striate-rugose, coarser than on head. Epinotum and node coarsely 
and irregularly rugose, transverse on declivity. Postpetiole, gaster and all the 
body densely and very finely reticulate-punctate. 
Hair yellow, long, erect and abundant throughout, short and suberect on antennae 
and legs. Pubescence yellow, very fine and adpressed, forming a distinct covering 
on postpetiole and gaster but not hiding the sculpture. 
Head a fraction broader than long, sides convex, angles very broadly rounded, 
occipital border deeply indented at middle. Mandibles one-fourth shorter than 
head, as long as scapes, apical half of external border convex, inner border straight, 
furnished with eight large, broad, blunt teeth, the eighth forms the basal angle. 
Scapes not reaching the occipital border by fully twice their width at apex; first 
and second segments of funiculus equal length, third one-fourth shorter. Thorax 
fully twice as long as broad. Pronotum three times broader than long, sides 
strongly convex, dorsum feebly convex. Mesonotum twice as long as pronotum, 
one-seventh broader than long, strongly convex in all directions. Scutellum very 
small, twice as broad as long, appearing as if embedded in mesonotum, excision 
deep and wide; metanotum small but prominent; epinotum longer than broad, 
feebly convex transversely; in profile centre of mesonotum slightly higher than 
pronotum and epinotum, excision deep. Pronotum high, strongly convex. Meso- 
notum convex, highest at middle, dropping behind; scutellum small, just apparent 
in epinotal excision; epinotum raised in front, convex from base to bottom of 
declivity. Node one-seventh broader than long, broadest at middle, broader behind 
than in front; in profile higher than long, anterior face high, slightly convex, 
posterior face straight, both faces rounded into the feebly convex dorsum, ventral 
spine short, broad and sharp-pointed. Postpetiole fully one and one-half times 
broader than long, broadest just behind middle, strongly convex in all directions, 
constriction deep and narrow. First segment of gaster broader than long, broader 
behind than in front, sides strongly convex. Leg robust. 
Male and worker unknown. 
Halitat—South Australia: Adelaide (R. Blackwood, 25.8.27). 
The structure of the thorax and nodes as well as the variegated 
colour render this species very distinct. 
Promyrmecia greavesi sp. nov. 
Plate XII, fig. 9. 
Female. Length 15-5 mm. 
Head, thorax and node red, mandibles and antennae testaceous, legs brown, 
gaster black. 
Mandibles strongly and coarsely striate diagonally and a long straight striae at 
base of teeth, base punctate only. Head finely striate-rugose longitudinally, very 
finely and densely punctate between the rugae. Pronotum striate-rugose similar 
to head. Mesonotum coarsely and irregularly punctate-rugose. Metanotum shining. 
Epinotum very coarsely rugose, somewhat transverse on the declivity. Node 
irregularly rugose with a central longitudinal carina. Postpetiole and gaster 
microscopically punctate. 
Hair yellow, short and erect on head, antennae, thorax, nodes and legs, long and 
fine on gaster, longer and coarser on mandibles and clypeus. 
