A Monograph of the Formicidae of South Africa. 17 



in the less developed carina above the base of the antennae, and in 

 the much less distinct pro-mesonotal suture. The 1st segment of 

 the abdomen is also much wider than long, whereas in the type it is 

 as wide as long. The thorax is also a little shorter. 

 Hab. Bulawayo. (G.A. coll.) 



Genus PHYRACACES, Emery. 

 Rend. Accad. Sc. Bologna, p. 27, 1901. 



Characters. 



$ and 5 . Antennae 12-jointed, apical joint not clubbed and not 

 longer than the two preceding together. Petiole, and sometimes the 

 1st abdominal segment with distinctly defined lateral margins. Eyes 

 in the £ large, otherwise resembling Cerapachys. 



$ . Unknown. 



This small genus, with the exception of two species from Mada- 

 gascar and the two described below, is confined to the Australian 

 region. 



P. Beaunsi, Emery. 

 Loc. cit. 



" $ . 3 - 5 mm. Piceous ; mouth, antennae, apex of abdomen a little 

 lighter, shining, with numerous fine hairs which are most abundant 

 on the abdomen. Pubescence on the legs obliquely exserted, scape 

 with some long hairs ; all the body finely punctured, more densely 

 so on the abdomen. 



Head with rounded sides and with the occipital margin almost 

 straight, or arcuate ; the eyes occupy a little less than one-half of 

 the sides. The mandible, narrow at the base, gradually enlarges 

 towards the masticatory margin which is obtusely dentelate on the 

 buccal portion. The frontal carinae are raised and parallel, but 

 dip down and converge abruptly posteriorly. The scape does not 

 extend further back than the eye, is shorter than the half of the 

 flagellum, and is incrassate towards its apex ; the 2nd-6th joints of 

 the flagellum are wider than long, the terminal joint being longer 

 than the preceding but not wider. 



Thorax short and stout ; the declivity of the epinotum marginate. 

 Petiole with sharp, lateral margins, seen from above, much wider 

 than long, the anterior face fairly straight, the sides arcuate, and the 



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