102 A REVISION OF THE GENUS PROMYRMECIA EMERY (FORMICIDAE) 
strongly convex above and on sides. First segment of gaster broader than long. 
Legs long and robust. 
Habitat—W estern Australia: Merriden (L. J. Newman); National Park and 
Mundaring (J. Clark); Yellowdine (W. Joyce). ; 
South Australia: Adelaide; Mt. Lofty (A. H. Elston); Port Lincoln (F. E. 
Wilson). 
Victoria: Maldon (J. C. Goudie) ; Mallee (J. E. Dixon) ; Wyperfield (J. Clark). 
New South Wales: Broken Hill (F. W. Shepherd) ; Narrabri (W. W. Froggatt). 
The colour varies considerably in the individuals of a single 
colony. Many specimens are entirely black, with the exception of 
mandibles, front of face, antennae and anterior legs. Others have 
thorax, petiole and anterior half of postpetiole entirely red or 
variously marked with red. The extent of yellow area on front 
of face also varies slightly, on some examples this does not pass 
anterior margin of eyes, whilst on others it extends well beyond 
posterior margin. Although the colour varies considerably, the 
sculpture, pilosity and pubescence are constant. The same colour 
varieties occur in all colonies obtained from each State. 
Promyrmecia fucosa Clark. 
Plate XII, figs. 14-16. 
Myrmecia (Promyrmecia) fucosa Clark, Mem. Nat. Mus, Vict., viii, p. 15, 
pl. 1) -iips.5; 6; I9S4 Fy. 
Worker. Length 10-11-5 mm. 
Red. Posterior half of head and two apical segments of gaster black. Mandibles 
and front of face to about the middle of eyes yellow; antennae and anterior legs 
testaceous ; middle and posterior legs brownish. 
Head longitudinally and irregularly rugose, densely and finely reticulate between 
the rugae. Mandibles smooth and shining, with some scattered shallow punctures. 
Pronotum transversely arched-rugose. Mesonotum finely striate transversely. 
Epinotum transversely striate-rugose, coarser than on mesonotum but not as coarse 
as on pronotum. Node strongly and irregularly rugose. Postpetiole and gaster 
very finely and densely punctate. 
Hair greyish, long and erect, abundant on whole body, except the scapes, shorter 
and suberect on funiculus and legs. Pubescence greyish, long and abundant on 
postpetiole and gaster, forming a distinct covering, sometimes hiding the sculpture; 
sparse elsewhere. 
Head slightly longer than broad, broadest in front, occipital border feebly concave, 
angles rounded. Mandibles not as long as head; external border almost straight to 
apical third; inner border nearly straight to basal third, then greatly reduced to 
base; furnished with nine teeth, the third, fifth, seventh, eighth and ninth twice 
as large as the first two; the eighth forms the angle between the two apparent 
borders, the ninth placed just in front of middle of basal border. Frontal carinae 
extending to the posterior margin of eyes. Clypeus obtusely excised at middle 
in front; anterior corners produced as blunt tqoth-like angles. Labrum broadly 
rounded, extending outward to apex of clypeus. Scapes not extending to the 
occipital border ; first segment of funiculus slightly shorter than second, but longer 
than tenth. Thorax two and one-half times as long as broad. Pronotum broader 
than long. Epinotum about one and one-half times as long as broad. Boundary 
