A REVISION OF THE GENUS PROMYRMECIA EMERY (FORMICIDAE) 111 
with one large tooth at centre between apex and base of inner border. Scapes twice 
as long as first segment of funiculus, second segment of funiculus five times as 
long as first, third segment four and one-half times longer than first. Thorax twice 
as long as broad. Pronotum four times broader than long. Mesonotum with 
sharply defined mayrian and parapsidal furrows. Scutellum as long as broad, 
broadest in front. Node slightly broader than long, convex in all directions; in 
profile higher than long, dome-shaped, higher in front, stalk half as long as node, 
ventral spine long, slender and sharp. Postpetiole one-third broader than long, 
broadest at posterior third, constriction deep and wide; first segment of gaster 
one-eighth broader than long. Legs long and slender. Wings hyaline. 
Habitat—Tasmania: Hobart (type locality). 
New South Wales: Whole State. 
Western Australia: Albany; Mundaring (J. Clark). 
South Australia: Mt. Lofty (A. H. Elston) ; Kangaroo Island (D. J. Mahony) ; 
Normanville (H. Womersley). 
Queensland: Fletcher and Stanthorpe (E. E. Sutton). 
Very abundant in all the eastern States. Commonly known as 
the ‘*‘black jumper,’’ this is the most common and widely dis- 
tributed species in the genus. In Western Australia it is quite 
common in Albany and surrounding district, but is rare farther 
north. In Queensland it ranges north to Rockhampton. 
Promyrmecia michaelseni Forel 
Plate XIII, figs. 17-18 
Myrmecia michaelseni Forel, Fauna Sudwest. Austrl., i, p. 267, 1907, ¥. 
Myrmecia (Myrmecia) michaelseni Emery, Gen. Insect., fasc. 118, p. 21, 
1911, ¥. 
Myrmecia michaelseni var. perthensis Crawley, Ann. Mag. Nat. Hist. (9), 
ix, p. 431, 1922, &. 
Myrmecia (Promyrmecia) michaelseni Wheeler, Colony-founding among 
Ants, p. 59, 1933. 
Worker. Length 10-12 mm. 
Black; mandibles, antennae and legs brown, tarsi reddish. 
Mandibles smooth, some obsolete striae near tips. Head finely striate longi- 
tudinally, very finely and densely punctate between the striae. Pronotum and 
mesonotum finely striate longitudinally. Epinotum more coarsely striate, longi- 
tudinal in front, irregular behind and transverse on the declivity. Node irregularly 
rugose with a longitudinal direction. Postpetiole and gaster densely and micro- 
scopically punctate. 
Hair whitish or yellow, moderately long, abundant and erect throughout, much 
longer on clypeus and apical segments of gaster, hardly apparent on antennae 
except at apex of scapes. Pubescence white, very fine and adpressed on head, 
thorax, antennae and legs, longer and more abundant on postpetiole and sides of 
gaster, top of gaster covered with long golden-red pubescence which hides the 
sculpture. 
Head slightly broader than long, occipital border straight or feebly concave, 
angles rounded. Mandibles very slightly longer than head. Frontal carinae swerving 
behind, as long as broad. Scapes just reach to the posterior border of head; first 
segment of funiculus as long as second, remainder subequal to apical, this is as 
long as the first but shorter than the two preceding combined. Thorax twice as 
