AUSTRALIAN CERAPACHYINI. 261 



a row of minute spinules. Legs rather stout; tip of hind coxae on the 

 inner side produced as a rounded, transhicent lamella. 



IVIandiblcs shining, coarsely punctate; head and thorax smooth and 

 shining, aboA'e with coarse, sparse, piligerous punctures; petiole, post- 

 petiole and gaster, except the intersegmental regions, more opaque, 

 finely and densely punctate. 



Hairs white, rather long and delicate, suberect and pointed ; on 

 the petiole, postpetiole and gaster in part appressed and more abun- 

 dant, but not concealing the sculpture. Pubescence abundant and 

 rather long, whitish, confined to the coxpe, legs and venter. 



Black; mandibles, pygidium, sting, funiculi, tips of scapes, tarsi, 

 coxfc and bases and tips of femora and tibiae castaneous. 



Described from numerous workers taken at Salisbury Court, near 

 Uralla, New South Wales, from a single colony which was running 

 about on a foraging expedition. 



This species is easily distinguished from the other black species of 

 Phyracaces by its subopaque abdomen and its long, appressed, pale 

 hairs, which give it a grayish appearance. 



32. Phyracaces binodis Forel. 



(Fig. 17.) 

 Cerapachys (Phyracaces) binodis Forel, Rev. Suisse Zool. 18, 1910, 



p. 20, y . 



Phyracaces binodis Emery, Gen. Insect. Fasc. 118, 1911, p. 11. 



W^orker. Length 3.8-4 mm. 



Head longer than broad, nearly as broad in front as behind, moder- 

 ately convex above and truncated in the occipital region. Eyes 

 rather large and flat, situated a little in front of the middle of the 

 sides. Ocelli absent. Carina of cheeks forming a prominent angle. 

 Postocular carina absent. Occipital border of head broadly excised, 

 strongly marginate, the margination surrounding the acute infero- 

 posterior corners and running forward on each side of the gular sur- 

 face about I the length of the head. Mandibles triangular, convex, 

 deflected, their apical borders minutely denticulate, their external 

 borders slightly concave. Clypeus short and vertical. Frontal 

 carinse erect, rounded, truncated behind where they meet. Antennae 

 rather long; scapes about | as long as the head, all the funicular 

 joints, except the last, distinctly broader than long, last joint rather 



