750 Annals of the South African Museum. 



Quite distinct from all our other species by having the inner spines 

 of the petiole shorter than the outer. 

 (S.A.M., KM., G.A. colls.). 



P. Aenoldi, Forel. (Plate IX, fig. 126). 



Bui. Soc. Vaud. Sc. Nat., vol. 50, p. 263, «, 1914. 



5, 7-5 mm. Black; a few pilose hairs on the anterior margin of the 

 clypeus and at the apex of the abdomen, legs and scapes very sparsely 

 pubescent, otherwise entirely glabrous. Dorsal surface of the body 

 evenly, sharply and longitudinally striate or sulcate, the spaces 

 between the striae moderately shining. Petiole and sides of thorax 

 fairly coarsely and irregularly reticulate-rugose, the rugae more or 

 less longitudinal on the upper half of the scale. Legs, clypeus and 

 declivity of epinotum shining, feebly reticulate, the clypeus also 

 sparsely and very shallowly punctured. Head subovate, widest 

 across the eyes, hardly longer than wide, narrower in front than 

 behind, the sides in front of the eyes fairly straight and convergent 

 anteriorly, convex behind the eyes, the posterior margin very convex. 

 Clypeus almost flat, the anterior margin arcuate and feebly emarginate 

 in the middle. Mandibles subopaque, finely reticulate, sparsely 

 punctured, 5-dentate. The scapes extend beyond the hind margin 

 by about one-third of their length. Eyes large, moderately convex, 

 placed a little behind the middle. Pronotum feebly narrowed 

 behind, its lateral margins feebly convex, two-thirds wider than long 

 in the middle (excluding the portion in front of the spines), the spines 

 broad, flattened, acute, a little longer than their basal width, their 

 outer margins not forming an angle at their junction with the lateral 

 margins of the pronotum. Mesonotum half as wide again as long, 

 the pro-mesonotal suture distinct, the meso-epinotal also, but 

 shallower. Dorsum of epinotum convex transversely and lengthwise, 

 its lateral margins nearly straight, slightly narrowed towards the 

 apical margin which is distinctly marginate, and furnished at each 

 side with a triangular, subvertical tooth which is a little longer than 

 wide, and with a small and triangular and median tooth. Declivity 

 as long as the dorsum, subvertical, moderately concave from above to 

 below. Scale of petiole thick, as thick below as it is wide above 

 between the two inner spines, both faces very convex, furnished above 

 with 4 spines, the inner pair very little longer than the outer and 

 slightly wider apart at their bases than they are from the outer spines. 



