A REVISION OF THE GENUS PROMYRMECIA EMERY (FORMICIDAE) 109 
base. Mesonotum higher than pronotum, dropping behind, strongly convex. 
Epinotum feebly convex on dorsum, strongly rounded into declivity. Node slightly 
broader than long, fully twice as long as the stalk in front, convex in all directions; 
in profile slightly higher than long, apical third straight and vertical, sloping 
gradually to apex of stalk in front, dorsum convex, rounded into posterior face, 
ventral spine long and broad, sharp-pointed, directed forward. Postpetiole almost 
one-third broader than long, broadest at middle, strongly convex in all directions; 
constriction deep and wide. Gaster one and two-thirds times longer than broad. 
First segment of gaster one-fifth broader than long, much broader behind than 
in front, sides convex. Legs long and slender. 
Female. Length 24:5-26 mm. 
Colour, sculpture and pilosity similar to worker. | Mandibles broader and 
straighter, teeth larger. Pronotum twice as broad as long, convex in all direc- 
tions. Mesonotum short, one-fourth broader than long, sides and front semi- 
circular, convex both ways on top, parapsidal furrows distinct. Wing stumps 
present. Scutellum circular, as long as broad, dome-shaped above. Epinotum 
feebly convex transversely. Node one-fifth broader than long. Postpetiole almost 
twice as broad as long. Legs slender. 
Male. Length 9:5 mm. 
Head and gaster black. Thorax, node, postpetiole and legs brownish-yellow, 
mandibles and scapes brown, funiculi yellowish-red. 
Head finely punctate-reticulate, more coarsely punctate behind. Thorax and 
node finely and densely reticulate, with numerous large shallow punctures scattered 
throughout, coarser and more abundant on epinotum. Postpetiole and gaster finely 
and densely reticulate. Pilosity as in worker but the erect hairs longer. 
Head almost one-third broader than long, strongly convex behind. Mandibles 
short, furnished with four strong sharp teeth. Clypeus broad, convex above, 
concave in middle in front. Frontal area large, triangular. Frontal carinae one- 
third longer than broad in front. Scapes two and one-half times longer than first 
segment of funiculus, second segment six times longer than first, remainder sub- 
equal to apical. Eyes large, occupying almost all the sides. Ocelli large. Thorax 
two and one-half times longer than broad. Pronotum short, strongly convex. 
Mesonotum one-fifth broader than long, convex in front, mayrian and parapsidal 
furrows and frontal groove in centre deeply impressed. Scutellum one-third 
broader than long, anterior edge feebly convex, sides and posterior edge strongly 
convex. Epinotum strongly convex transversely. Node circular, as long as broad, 
fully four times as long as the stalk in front, in profile like node of worker but 
ventral spine straight. Postpetiole as long as broad, almost three and one-half 
times broader behind than in front, sides straight to basal third then strongly 
convex. Gaster fully twice as long as broad. First segment almost one-third 
broader than long, much broader behind than in front. Genitalia retracted. Legs 
long and slender. Wings hyaline. 
Habitat —South Australia: Reevesby Island. 
Promyrmecia pilosula Smith 
Plate XIV, figs. 37-39 
Myrmecia pilosula Smith, Cat. Hymen. Brit. Mus., vi, p. 146, 1858, ¥ 9 2 ; 
Roger, Berl. Ent. Zeitschr., v, p. 35, 1861; Mayr, Verh. Zool. Bot. Ges. 
Wien, xii, p. 726, 1862. 
Formica forficata Latreille, Fourmis, p. 216, pl. 8, fig. 50, 1802, ¥ 
Myrmecia (Myrmecia) pilosula Emery, Genera Insect., fasc. 118, p. 21, 1911. 
