128 A REVISION OF THE GENUS PROMYRMECIA EMERY (FORMICIDAE) 
Head, pronotum and mesonotum and the anterior third of epinotum finely striate- 
rugose longitudinally, declivity of epinotum transversely rugose, node irregularly 
rugose. Apical half of mandibles strongly striate longitudinally, finely punctate 
near base. Postpetiole and gaster finely and densely punctate. 
Hair yellow, fine and erect, long and abundant throughout, short and suberect 
on legs, none on antennae. Pubescence white, very fine and adpressed, most 
abundant on postpetiole and gaster, but not hiding the sculpture. 
Head slightly broader than long, sides and occipital border feebly convex, angles 
rounded. Mandibles a fraction longer than head, external border concave in middle, 
inner border furnished with fifteen teeth, the third, fifth, sixth, eighth, ninth, 
eleventh, twelfth and fifteenth large, sharp and directed backwards. Frontal 
carinad longer than broad behind. Scapes extend beyond the occipital border by 
fully their thickness; second segment of funiculus barely one-sixth longer than 
first, remainder subequal. Thorax twice as long as broad. Pronotum twice as 
broad as long, convex in all directions. Mesonotum about one-sixth broader than 
long, convex; constriction between mesonotum and epinotum deep and wide. 
Epinotum almost as long as broad, not defined behind; in profile the pronotum 
and mesonotum united and evenly arched, the constriction feebly impressed. Meso- 
epinotal constriction deep and wide. Epinotum as high as mesonotum, evenly 
convex from base to foot of declivity. Node one-fifth broader than long, almost 
circular; in profile as high as long, anterior face short and vertical, dorsum convex, 
rounded into posterior face. Postpetiole almost one-fourth broader than long, 
sides strongly convex; constriction wide and shallow. First segment of gaster 
one-fourth broader than long. Legs slender. 
Female and male unknown. 
Habitat—North Queensland: Mutchilba (A. D. Selby). 
Four examples received from F. E. Wilson. This species 
resembles P. varians Mayr; the shape of the thorax and nodes 
distinguish them. 
Promyrmecia shepherdi sp. nov 
Plate XV, fig. 50-52 
Worker, Length 10-11 mm. 
Head and gaster blackish-brown, apex of pronotum and anterior coxae brown. 
Mandibles, anterior edge of clypeus, labrum and antennae yellow, apical segment 
brown; thorax, node, postpetiole and all legs reddish-yellow. 
Apical half of mandibles striate, basal half reticulate-punctate. Head finely 
striate-rugose, densely reticulate between striae. Pronotum, mesonotum and anterior 
half of epinotum longitudinally striate, posterior half of epinotum and the declivity 
transversely striate. Node circularly rugose with a strong central longitudinal 
striae. Postpetiole and gaster densely and very finely punctate-reticulate. 
Hair yellow, short and erect, abundant throughout, shorter and suberect on legs, 
none on antennae. Pubescence white, very fine and adpressed, forming a fine 
covering on postpetiole and gaster but not hiding the sculpture. 
Head as long as broad behind eyes, occipital border straight or feebly convex, 
sides convex, posterior angles rounded. Mandibles as long as head, external border 
feebly concave, inner border straight, furnished with five large sharp teeth and 
two small teeth between the larger teeth. Frontal carinae as long as broad. Scapes 
just reach the occipital border; first and second segments of funiculus equal in 
length. Thorax two and one-fifth times longer than broad, pro-mesonotal suture 
sharply impressed, meso-epinotal suture deep and wide. Pronotum one and three- 
