136 A REVISION OF THE GENUS PROMYRMECIA EMERY (FORMICIDAE) 
Habitat.—Victoria: Eltham (J. E. Dixon, F. E. Wilson). 
New South Wales: Albury (F, E. Wilson). 
Federal Capital Territory: Canberra (T. Greaves). 
Promyrmecia gilberti Forel 
Plate XVI, figs. 79, 80 
Myrmecia fulvipes Roger var. gilberti Forel, Rev. Suisse Zool., x, p. 6, 
1910, ¥ 
Myrmecia (Pristomyrmecia) fulvipes Roger var. gilberti Emery, Genera 
Insect., fasc. 118, p. 21, 1911. 
Myrmecia (pristomyrmecia) fulvipes Roger race gilberti Forel, Bull. Soc. 
Vaudoise des Sc. Nat., xlix, p. 173, 1913, ¥. 
Myrmecia (Pristomyrmecia) regina Santschi, Bull. Soc. Vaud. Sc. Nat., 
Ivi, p. 465, 1928, &. 
Myrmecia (Promyrmecia) gilberti Wheeler, Colony-founding among Ants, 
p. 72, 1933, ¥ 9. 
Worker, Length 9:5-15 mm. 
Black, mandibles, antennae and legs brown, tarsi lighter. 
Apical half of mandibles coarsely striate-rugose, basal half more finely striate- 
Tugose, punctate between the rugae. Head finely striate-rugose, longitudinally in 
front, more irregularly behind, the rugae widely spaced, the interstices very finely 
and densely reticulate-punctate. Pronotum irregularly and coarsely striate-rugose, 
almost transversely. Mesonotum longitudinally striate-rugose. Epinotum punctate- 
rugose on top, the punctures very large and shallow, more striate-rugose trans- 
versely on declivity. Node irregularly and coarsely punctate-rugose, the punctures 
large. Postpetiole and gaster densely and microscopically punctate, with scattered 
shallow, almost obsolete, punctures, more numerous on postpetiole. 
Hair grey, long and erect, abundant throughout, but longer and more numerous 
on mandibles and apical segments of gaster, short and suberect on legs, sparse on 
antennae; pubescence grey, very fine and abundant, longer and more abundant 
on postpetiole, yellow, and hiding the sculpture on gaster. 
Head as long as broad, sides and, occipital border feebly convex, angles rounded. 
Mandibles not as long as head, about one-ninth shorter, outer border straight or 
feebly concave at middle; inner border straight, furnished with twelve erect sharp 
teeth, long and broad on apical half, shorter and inclined backwards on basal half. 
Scapes not extending to occipital border by fully their thickness, second segment 
of funiculus very slightly longer than first, the remainder shorter, subequal to 
apical, which is as long as first. Thorax fully twice as long as broad. Pronotum 
twice as broad as long, sides and front strongly convex, dorsum feebly convex. 
Mesonotum one-fourth broader than long, convex in all directions, constriction 
between mesonotum and epinotum deep and wide. Epinotum one-sixth longer 
than broad, convex in all directions; in profile pronotum raised strongly and 
evenly convex from apex to base, mesonotum higher than pronotum and epinotum, 
highest in front, evenly convex, meso-epinotal constriction deep and wide, epinotum 
strongly and evenly convex from base to bottom of declivity, highest at anterior 
fourth. Node as long as broad, broadest at middle, almost twice as broad there 
as in front, convex in all directions; in profile as high as long, anterior face straight, 
vertical, rounded into dorsum, posterior face short and vertical, dorsum feebly 
convex, ventral spine long and sharp, broad at base. Postpetiole one-third broader 
than long, broadest just behind middle, strongly convex. First segment of gaster 
one-sixth broader than long, broader behind than in front, sides strongly convex. 
Legs robust. 
