A Monograph of the Formicidae of South Africa. 607 



introduced with plants and permanently established in many hothouses 

 in temperate countries. 

 (S.A.M., R.M., G.A. coll.). 



P. Traegaordhi, Forel, var. natalensis, Forel. 

 Bull. Soc. Vaud. Sc. Nat. vol. 50, p. 318, §. 1914. 



^, 2-5-3 mm. Head and abdomen brown, the head darkest, thorax, 

 legs and antennae brownish ochreous, the tarsi and mandibles 

 ochreous. Pubescence moderately abundant, fine, adjacent, and of a 

 pale greyish brown colour, very sparse on the pro-mesonotum. 

 Pilosity coarse, dark brown, pointed, not blunt and not so long as in 

 P. longicornis, shorter and more oblique on the legs, scapes and 

 sides of the head than elsewhere. Pronotum and declivity of the 

 epinotum smooth and very shining, abdomen superficially rugulose 

 and fairly dull, the head shining and very sparsely punctured. 

 Mesonotum and dorsum of the epinotum moderately shining and very 

 feebly punctured. Head, excluding the mandibles, a little longer than 

 wide, hardly narrower in front than behind, the sides subparallel, 

 the posterior angles narrowly rounded. Clypeus very convex, suban- 

 gular in the middle but not carinate, its anterior margin straight. 

 Mandibles narrow, 6-dentate. Eyes placed in front of the middle of 

 the sides. Scapes much shorter than in longicornis, extending beyond 

 the hind margin of the head by about one-third of their length; 

 2nd joint of flagellum hardly longer than wide, 3rd and 4th one and 

 a half times longer than wide, all the rest somewhat longer (in 

 longicornis no joint is less than two and a half times longer than 

 wide). Pronotum convex lengthwise and transversely, one and a half 

 times wider than long. Mesonotum oval, slightly longer than wide, 

 forming in profile with the pronotum a fairly strong convexity, not 

 flat as in longicornis. Metanotum more deeply depressed than in that 

 species, very short in the middle. Dorsum of epinotum distinctly 

 convex lengthwise and transversely, wider than long, a little shorter 

 than the oblique declivity. Scale of petiole slightly wider above than 

 below, its dorsal edge convex from side to side and almost trenchant. 

 Abdomen oval. Legs not long and not very slender. 



Durban. (W. H. B. Marley, C. P. Merve). 



Forel remarks of this variety, "Smaller than the' type species. 

 Head narrower, relatively longer, with the sides less convex. Pubes- 

 cence more feeble. The mesonotum is also less convex and the 

 epinotum lower, with the declivity much shorter and less distinct, 

 whereas the dorsum is loimer and less convex. Otherwise identical, 



