AUSTRALIAN CERAPACHYINI. 257 



its posterior angles produced as small, flattened teeth, its sides, 

 anterior and posterior borders marginate. In profile it is feebly 

 convex above, conca\e on the sides, with abrupt, vertical anterior 

 surface, joining the dorsal surface at a right angle, and the ventral 

 surface with a blunt tooth at the anterior end. Postpetiole rectangu- 

 lar, a little broader than long, and a little broader than the petiole, 

 slightly broader in front than behind, with straight sides, anterior 

 and posterior borders and rounded, flattened anterior angles. The 

 anterior and lateral borders are strongly marginate. First gastric 

 segment a little broader than the postpetiole, with convex dorsum and 

 sides. Pygidium bluntly pointed at the tip, concave above, marginate 

 and minutely spinulose on the sides. Legs rather long; hind coxae 

 with a large, rounded, translucent lamella at the tip on the inner side. 



Smooth and shining; mandibles coarsely punctate; head and body 

 above with sparse, piligerous punctures, which are large and con- 

 spicuous on the vertex. Sides of pygidium and posterior borders of 

 gastric segments densely and finely punctate. Scapes and legs with 

 numerous, minute, piligerous punctures. 



Hairs grayish yellow, erect, pointed, sparse, long and rather uni- 

 formly distributed on the body, shorter and more oblique on the 

 appendages. Legs and scapes with distinct grajash pubescence. 



Black; mandibles, pygidium, sting, antennse and legs brownish red. 



Female (dealated). Length 4.1 mm. 



Like the worker except for the ocelli and thoracic sclerites. Mesono- 

 tum and scutellum very small and flat. Stumps of wings distinct. 



Queensland : IVIackay, type locality (Gilbert Turner) ; Cedar Creek 

 (E. Mjoberg); Kuranda (Wheeler). 



I have redescribed the worker from nine specimens which I found 

 running over dead leaves in the dark tropical "scrub" near Kuranda. 

 The description of the female is taken from Forel. The worker of this 

 species is readily distinguished from that of the other black species of 

 Phyracaces by the longer funicular joints and the shape of the petiole 

 and postpetiole and from all but Ph. senescens by its short, thickset 

 thorax. 



29. Phyracaces larvatus sp. nov. 



(Fig. 15.) 



Worker. Length 3-3.6 mm. 



Head longer than broad, a little narrow^er in front than behind, 

 with feebly convex sides, concave posterior border and short, rather 

 blunt inferoposterior corners. Eyes large and moderately convex, 



