A Monograph of the Formicidae of South Africa. 355 



3rd). Eyes moderately large, placed in the anterior half of the head. 

 Behind the eyes the head is gradually narrowed towards the posterior 

 angles, the posterior margin above truncate (hardly concave), dis- 

 tinctly and arcuately emarginate below and at the occipital foramen. 

 Thorax unarmed, the mesonotum not overhanging the pronotum in 

 front. The Mayrian furrows become less distinct before the middle of 

 the mesonotum and before their point of junction. In front of, and 

 parallel to the posterior margin of the mesonotum, there is a curved 

 transverse impression, which is probably present in the living insect, 

 even if not so deep. The scutellum is fairly strongly convex length- 

 wise, higher than the mesonotum, less rounded behind than in Tetra- 

 ■morium. The dorsum of the epinotum is long and fairly narrow, with 

 a median longitudinal groove, oblique, merging arcuately into the 

 much more inclined declivity ; the latter marginate at the sides, the 

 margins becoming stronger below. Wings as in the $ . Legs thin 

 and fairly long. Petiole as in the 9 • Port Elizabeth (Dr. H. 

 Brauns)." 



R. transversinodis, Mayr. (Plate VIII, figs. 112, 112a, 113, 113a,) 

 Ann. K.K.N.H. Mus. Wien, vol. 16, p. 22, £ , 1901. 



£ t 3 mm. Brownish-ochreous ; the tarsi, mandibles, and flagellum 

 more reddish-yellow. Smooth and very shining. Sparsely and ex- 

 ceedingly finely punctured, the pubescent hairs arising from the 

 punctures. Under a low magnification practically impunctate. 

 Pubescence adpressed and very scanty, more abundant on the abdomen 

 than on the head and thorax, longer and denser on the legs and 

 antennae. The anterior angles of the head, between the eyes and 

 antennal sockets, finely striate, much more finely so than in globuli- 

 nodis. Very similar to that species, differing from it chiefly in the 

 following characters : 



The sides of the head are much more convex, the portion in front 

 of the eyes narrowing gradually towards the clypeus. The posterior 

 margin more deeply and widely emarginate, the posterior angles 

 more prominent. The eyes are placed a little behind the middle of 

 the sides. Frontal carinae shorter, wider apart and more divergent. 

 Thoracic sutures faintly indicated above at the sides, obsolete in the 

 middle. The mesonotum lacks the transverse impression which is 

 present in globulinodis, and, seen in profile, the dorsum is not depressed 

 between the meso- and epinotum. The chief distinction lies in the 

 shape of the petiole. The 1st segment, seen in profile, has a short 

 and vertical posterior face ; the dorsal face is convex and passes 



