A Monograph of the Formicidae of South Africa. 109 



abdomen black, legs and antennae brown, the tarsi and articulations 

 lighter. Head, antennae and legs with a very fine, dense silky pubes- 

 cence ; on the thorax the pubescence is much sparser, and on the 

 abdomen it is longer but very scanty. Pilosity slight ; a few long 

 hairs on the pronotum, the lower surface of the mandibles and the 

 apex of abdomen. The head is very evenly and finely striate, the 

 striae diagonal. The pronotum has stronger and concentric striae ; 

 the mesonotum is transversely, and the epinotum semicircularly 

 striate, the striae being stronger on the epinotum than on the thorax. 

 Mesopleurae smooth. Abdomen smooth and shining. The anterior 

 portion of the head in front of the eyes is much less than half as 

 long as the portion behind the eyes. Posterior margin of the head 

 very slightly emarginate. Between the postocular hollow and the 

 posterior angle of the head, there is a shallow and ovoid depression. 

 The antennal hollows are wide, deep, smooth and shining in front of 

 the eyes, dull and shallow behind them. A deep furrow reaches 

 from the occiput to the confluence of the antennal hollows. Clypeus 

 narrow, raised on each side above the base of the mandibles. The 

 latter are half as long as the head, shining and shallowly punctured, 

 with the teeth all blunt, and the inner margin feebly serrated. Scape 

 and flagellum very slender and filiform. The thorax is much 

 narrower than the head. Pronotum narrowed in front, convex above 

 and at the sides, and wider than long ; anterior half of mesonotum 

 slightly raised and submarginate. Epinotum about as long as pro- 

 and mesonotum together. The declivity is very steep, -but rounded 

 above and merges gradually into the dorsum. Abdomen pyriform ; 

 1st segment twice as long as the 2nd. Legs slender. 



5 . 10 - 5 mm., excluding the mandibles. Similar to the $ , but 

 winged. The pronotum is shorter than the mesonotum, which is 

 longitudinally striate. The abdomen is wider than in the $ . Wings 

 brownish yellow, nervures and stigma pale brown. 



" $. 6 - 7-7 mm., the characters of the genus. Tegulae raised, 

 thick at the base, acuminate at the apex. Moderately thickly 

 pubescent. Clypeus smooth and shining. The other parts of the 

 head, and also the thorax unevenly wrinkled The pilosity similar 

 to that of the £ . Petiole and abdomen shining, and very feebly 

 sculptured. Colour totally yellowish brown, somewhat testaceous ; 

 legs and antennae a little lighter colour." 



Bulawayo. S. Ehodesia. (P.M., S.A.M., G.A. colls.) 



