A Monograph of the Formicidae of South Africa. 453 



The species, which have polymorphic $ $ , have been placed by 

 Dr. Forel in a distinct subgenus, Allopheidole (Mem. Soc. Ent. Belg., 

 vol. 19, p. 237, 1912). 



P. spinulosa, Forel. 



Ann. Soc. Ent. Belg., vol. 54, p. 438, 1/, £ , $ , S, 1910. 



"1/. 5-5"6 mm. Mandibles smooth, abundantly punctured, the 

 external margin feebly convex, with 3 or 4 large striae (teeth?). 

 Clypeus carinate and emarginate. Frontal carinae divergent, rather 

 short, as far apart from each other as they are from the sides of the 

 head. Head of a rounded trapeze shape, a little longer than wide, 

 narrowed in front, the sides but little convex, fairly deeply emarginate 

 behind, the occipital groove continuous with the frontal groove. Eyes 

 placed in the anterior third. The scape hardly extends beyond the 

 middle of the head. No trace of a scrobe, only a slight depression 

 present for the base of the scapes. Posterior lateral angles of the 

 pronotum prominent. There is a wide and very superficial transverse 

 impression in the middle of the mesonotum ; behind the same there 

 is a transverse torus which is not high. Dorsum of the epinotum not 

 marginate, as wide as long, a little longer than the declivity. Spines 

 shorter than half the wide space between them. First node high, the 

 dorsal edge emarginate, the peduncle rather short. Second node a 

 little more than twice as wide as long, bearing on each side a fairly 

 long and pointed spine, curved backwards. Epinotum and nodes dull 

 or subopaque, finely reticulate, punctate and transversely striate. The 

 rest shining. Anterior half of the head coarsely and longitudinally 

 striate or rugose. Promesonotum superficially rugose transversely ; 

 the rest more or less smooth. The occiput has some fairly large and 

 scanty punctures, and the abdomen some piligerous punctures. Erect 

 pilosity yellowish, very sparse, inclined slightly backwards on the 

 body. The tibiae and scapes have only adpressed hairs, which are also 

 scattered over the body. Yellowish-red, the abdomen light brown, 

 the limbs yellowish, or the thorax light brown, with the antennae, 

 tarsi and articulations yellowish. The colour varies between these two 

 extremes. 



" $ . 2-2 - 4 mm. Head quadrate, slightly narrowed in front, the 

 posterior margin feebly concave. Eyes placed in the middle of the 

 sides. 



" Clypeus finely carinate. Mandibles dentate, shining, finely 

 striate. The scape extends beyond the occiput by one-fifth to one- 

 sixth of its length. Posterior lateral angles of the pronotum distinct. 



