A Monograph of the Formicidae of South Africa. 27 



behind than in front, roundly truncate in front and behind. 

 Puncturation similar to that of P. cribrinodis. 

 Valdezia, Transvaal. (Rev. P. Berthoud.) " 



Race longinoda. Var. rhodesiana, Forel. (Plate I., fig. 3.) 



Ann. Soc. Ent. Belg., vol. 57, iv. p. 110, £ $ , 1913. Ibid., p. 317, 



2 , 1913. 



£ . 12-13 mm. This variety differs from lamellosa, in being more 

 finely punctured, especially on the petiole ; the latter is almost twice 

 as long as wide, and is widest in its posterior half, whereas in the 

 type it is hardly more than one-quarter as long again as wide, and 

 is widest in the middle ; the projection of the ventral lamella is 

 smaller and more acute, not widely truncated at the apex as in the 

 type ; the two obtuse tubercles or teeth of the epinotum are also 

 much less prominent in this variety. It differs from race longinoda 

 by its stronger puncturation, its larger size, the slightly longer 

 petiole, and the greater width of the head behind. 



" 5 . 14 mm. Almost identical with the £ . Thorax nearly as 

 wide as the head. Mesonotum and scutellum short. The teeth of 

 the epinotum broader and more noticeable than in the $ ; other- 

 wise identical, but the antennae, tarsi, and mandibles are distinctly 

 reddish. Dealated." 



$ . 13*5 mm. Black, tarsi brown, extreme base of scape 

 ferruginous. Pruinose pubescence as in the £ . Whole body finely 

 rugulose and irregularly punctured with small shining punctures, 

 most abundant on the head and thorax, sparser and much shallower 

 on the abdomen. Head, including the mandibles, nearly half as 

 long again as wide, widest across the eyes, posterior angles con- 

 siderably rounded. Clypeus large and convex, posterior margin 

 clearly defined. Mandibles large, triangular, shining and finely 

 punctured ; masticatory margin denticulate, with an elongate sub- 

 apical tooth, apex incurved and moderately acute. Antennae reach 

 back as far as the base of the 1st abdominal segment; the scape is 

 very nearly as long as the 2nd joint of flagellum ; the 1st joint of 

 the latter is very short, not one-third as long as the scape ; 2nd-10th 

 joints sinuate externally, so that they are all much wider at the apex 

 than at the base. Frontal carinae wide. Eyes large and convex, 

 the ocelli situated on a raised area. 



Pronotum exposed, sides slightly concave, anterior margin round ; 

 pro-mesonotal suture distinct. Mesonotum very convex in front, 

 flatter at the base, and raised well above the level of the pronotum. 



