A Monograph of the Formicidae of South Africa. 729 



According to Santschi's key, Grandidieri s. str. is limited to Mada- 

 gascar. It is, like foraminosus, distinct from auropubens by having 

 fewer pits on the head, which are smaller than the intervals be- 

 tween them. 



Auropubens, var. Absalon, Santschi. 

 Log. cit., pp. 267 and 274, 2J., & ?. 



"5-5-9-5 mm. Very close to the type from which it differs by the 

 red or brownish red tibiae, (black or slightly brownish black in the 

 type). The dorsum of the epinotum is straight, the angle which it 

 forms with the declivity being less open than in auropubens, in which 

 the dorsum of the epinotum is also a little convex. The pubescence 

 of the cheeks is as long and as much exserted as in auropubens — 

 that is, the hairs are as long as the width of the apex of the scape, and 

 as long as those on the abdomen. 



$, 10 mm. Head trapezoidal, longer than wide, about one-fourth 

 narrower in front, the sides and the posterior margin straight, the 

 angles rounded. Mesonotum dull like the rest of the thorax. Scale 

 high and thin, obtuse at the summit. Wings tinged with brownish 

 yellow, nervures and stigma brown. The anterior wing 12 mm. long. 



Natal, (Traegaordh). Hitherto confused with the type of the 

 species, as was also the following variety." 



Auropubens, var. Jacob, Santschi. 

 hoc. cit., pp. 267 and 275, 2L, g. 



"'Differs from the type and from the variety Absalon by having the 

 pubescence on the cheeks entirely decumbent, although they extend 

 beyond the pits. It is also shorter, the hairs being shorter than 

 the apical width of the scape. The pubescence on the abdomen is 

 also shorter and less plentiful. The tibiae are reddish like the 

 antennae and mandibles. The pits on the head are hardly less large 

 than in the type, but much larger than in Grandidieri, Forel, and more 

 confluent ; the cheeks dull. Mozambique, Pungwe Valley, (Vasse) ; 

 Bulawayo, Rhodesia, (Arnold). 



C. auropubens has the pit-like puncturation so different from that 

 of the other Myrmotrema that I believe it may be considered as a 

 species distinct from Grandidieri, to which it is the nearest allied." 



2J., 7-3-10 mm. $ media, 6-8 mm. $ minor, 5-5-5 mm. 



