112 A REVISION OF THE GENUS PROMYRMECIA EMERY (FORMICIDAE) 
long as broad. Pronotum twice as broad as long, sides and front strongly convex, 
depressed above. Mesonotum one-third broader than long, sides and front strongly 
convex, weakly convex behind. Meso-epinotal depression deep. Epinotum one- 
third longer than broad, convex in all directions; in profile pronotum and meso- 
notum united in a long convexity, slightly flattened at pro-mesonotal suture. 
Meso-epinotal suture deep and wide, epinotum strongly arched into declivity. Node 
as broad as long, much broader behind than in front, sides and posterior border 
convex, anterior border short and straight; in profile as high as long, anterior 
and posterior faces straight, vertical, dorsum concave, angles bluntly pointed, 
ventral spine long, broad and sharp. Postpetiole one-third broader than long, 
strongly convex in front. First segment of gaster one-sixth broader than long, 
strongly convex. Legs slender. 
Female. Length 13:5-15 mm. 
Colour, sculpture and pilosity as in the worker. Larger and more robust. 
Mandibles similar but larger and broader. Node one-fourth broader than long. 
Postpetiole one-third broader than long. Wings with a slight brownish tinge. 
Male. Unknown. 
Habitat—W estern Australia: Albany; Denmark; Nornalup; Bridgetown; 
Armadale; Perth; Mundaring. 
The worker is described from a co-type received from the late 
Dr. Michaelsen. The female from a nest found at Albany. This 
species is abundant in the Albany district and is found sparingly 
from Albany to Perth. The measurements given by Forel for the 
nodes of this species do not apply to the co-types received nor to 
the majority of large numbers of nests found in various districts. 
The variety described by Crawley from Perth is the typical form. 
Promyrmecia michaelseni Forel s.sp. queenslandica Forel 
Plate XIII, fig. 19 
Myrmecia michaelsenit Forel r. queenslandica Forel, Arkiv. f. Zool., 9, 16, 
p. 4, 1915, &. 
Myrmecia michaelseni s.sp. overbecki Veihmeyer, Ent. Mitteil., xiii, p. 222, 
1924, ¥ @. 
Worker. Length 11-13 mm. 
Colour as in P. michaelseni Forel. Sculpture coarser, more rugose. Hair longer 
and more abundant. Pubescence on gaster not so bright red, more yellowish-red. 
Mandibles as long as head. Scapes not extending to the occipital border by 
fully their thickness; segments of funiculus thicker. In general more robust than 
michaelseni. 
Female. Length 15-5 mm. (after Viehmeyer). 
Mandibles somewhat shorter, not longer than the head, but broader, the fine 
ridge at base of teeth much more distinct than in the worker. Petiole distinctly 
broader than long, its posterior face in profile concave. Wings missing. 
Male. Unknown. 
Habitat—Queensland: Lamington Plateau (type locality, E. Mjoberg) ; 
Fletcher; Stanthorpe (E. Sutton). 
New South Wales: Lismore (C. F. Deuquet) ; Grafton (J. Clark) ; Trial Bay 
(H. Overbeck). 
