A Monograph of the Formicidae of South Africa. 235 



somewhat narrower. The 1st and 2nd joint of the antennal club not 

 longer than wide (in dispar both are distinctly longer than wide, the 

 first joint of the club decidedly smaller than the 2nd), the last joint of 

 the club distinctly wider than in dispar, and nearly twice as long as 

 the two joints preceding taken together, whereas in dispar it is 

 certainly clearly, but very little longer than the two preceding." 

 Port Elizabeth. (Dr. Brauns.) In hollow stems. 



Var. shilohensis, Forel. 

 Deutsch. Ent. Zeit. Beiheft, p. 217, £ , 1913. 



^ , 1*4 mm. Colour as in the type. The scape is shorter, and the 

 thorax is less constricted at the meso-epinotal suture. The head is 

 more quadrangular, the sides straighter. The dorsal profile of the 

 thorax is almost straight. The 3rd-7th joints of the flagellum twice 

 as wide as long, the 2nd and 8th joints one and a half times as wide 

 as loug. The ventral surface of the 1st node is strongly convex, the 

 node is but slightly higher than the 2nd. 



Shiloh, S. Rhodesia. In grassy soil. (Gr.A. coll.) 



M. destructor, Jerdon, race kalahariense, Forel. 



Madras Journ. Litt. and Sc, vol. 17, p. 105, $ , 1851. Race, 

 Schultze Reise Siiclafrica, vol. 4, p. 18, $ , 1910. 



" 5 • l'7-3 mm. Differs from the subspecies gracillimum, Smith, by 

 the shorter scape, which even in the smallest £' by no means reaches 

 the posterior margin of the head, and by the very small, flat eyes, 

 which comprise only 16-18 distinct facets (quite 40 in the larger 

 and more convex eyes of the type species and the race gracillimum) . 

 The head is even more strongly and closely punctured than in gracilli- 

 mum. Brownish yellow-red ; abdomen brownish. Upper surface of 

 the first two abdominal segments, antennae and legs yellowish. 

 Polymorphic as in gracillimum. Larger than dispar, Em., in which 

 the epinotum is smooth — in this species transversely rugose. 



" Kooa-Sekgoma, Kalahari. (Schultze.) In a small subterranean 

 sand-nest ; also found on another occasion in the nest of Hamitermes 

 runconifer, attacking Ocymyrmex picardi?'' 



M. dispar, Emery. 



Ann. Soc. Ent. France, vol. 63, p. 24, g , 1895. 



" $ . Maxima, 3 mm. Testaceous; abdomen fuscous, veiy shining, 

 and sparsely punctured. Head hardly longer than wide ; the cheeks 



