186 Annals of the South African Museum. 



the thorax and the petiole not marginate. 1st node of petiole narrow, 



2nd sub-globose. $ 4 - 5 mm., ? 5'5 mm. 



" Hamman's Kraal and Makapan, Bechuanaland. (Simon.) " 



" <$ . 4 , 5-5 , 5 mm. Head a little longer than wide, narrow in 



front, posterior margin straight. Eyes large. 1st node pedunculate 



in front, twice as long as wide. 2nd node much longer than wide. 



Thorax wider than the head. Shining, scantily and finely punctured. 



Erect pilose hairs absent, the decumbent pubescence very fine and 



scanty. Wings as in penzigi. Brown ; antennae, clypeus, legs and 



narrow bands on the abdomen pale yellow." 



Race ehodesiana, Forel. 



Ann. Soc. Ent. Belg., vol. 57, p. 112, £ , 1913. Arnold, Proc. Rhod. 

 Sc. Assn., vol. 13, pt. 3, p. 31. £ maj. 1914. 



" This race differs from the type species by the almost total absence 

 of the anterior lobe of the clypeus, which, in the type, is very distinct, 

 rectangular and produced. The three segments of the thorax ai-e also 

 more flattened and margined, and less convex. The curve between the 

 dorsum and the declivity of the epinotum is more abrupt and angular 

 than in the type." 



^ . 5 mm. Reddish yellow. Pubescence scanty on the head, 

 thorax and legs, more abundant on the abdomen. A few pale, erect 

 hairs on the head, pronotum, petiole and apical portion of the abdomen. 

 Head, dorsum of thorax and 1st node of petiole very finely reticulate, 

 sides of thorax very finely reticulate -striate. Dull, abdomen nitidulous. 

 Head about one-third longer than wide, wider than the thorax, the 

 sides convex, posterior margin straight. Frontal carinae rather wide 

 in front, raised more above the antennal sockets than in natalensis. 

 Median portion of clypeus raised and projecting slightly forwards, its 

 anterior margin bearing three minute prominences, hardly toothed- 

 Mandibles quadridentate, shining and striate. The scape extends back 

 to the anterior third of the eye. The latter very large, almost half as 

 long as the sides of the head, placed rather obliquely, and nearer the 

 posterior than the anterior margin. The two posterior ocelli faintly 

 indicated. Pronotum very slightly wider in front than behind, as 

 long as wide, and distinctly marginate at the sides. Pro-mesonotal 

 suture deep ; mesonotum as long as wide, two-thirds as long as the 

 pronotum. Dorsum of epinotum as long as the pronotum, about one- 

 quarter longer than the declivity, which is very steep, almost vertical. 

 First joint of petiole hardly pedunculate, twice as long as wide ; the 

 sides of the node are vertical, but the dorsal surface is not marginate ; 



