128 Annals of the South African Museum. 



occipital part of the head, the 6th dorsal abdominal segment, and the 

 legs, which are smooth and shining. 



The head is much wider than long ; seen in profile, rather biconvex. 

 The anterior margin of the clypeus is obtusely angulated ; from the 

 posterior margin to the anterior ocellus there is a narrow impressed 

 line, between which and the inner margins of the eyes the surface 

 of the head is feebly convex on each side. Seen from the front, 

 the dorsal profile of the head is very convex, the convexity being 

 broken by a slight depression between the two posterior ocelli. 

 The latter are very convex, prominent and large. The scape narrows 

 towards its apex, and when directed upwards the apex just reaches 

 the level of the top of the head ; it is as long as the first 7 joints 

 of the flagellum. The latter is 12-jointed, all the joints, except the 

 first, longer than wide. The first joint is glabrous and shining below, 

 the remaining joints pubescent and very finely punctured all over. 

 The whole thorax is somewhat globose, and its dorsum raised much 

 above the level of that of the head and abdomen. Seen from above 

 only a narrow portion of the pronotum is visible, but a,t the sides it 

 can be seen as a large triangular piece between the mesonotum and 

 the mesopleuron. The mesonotum is convex in front and at th& 

 sides, slightly flattened posteriorly, and about one-fifth longer than 

 wide ; anteriorly and on each side of the middle there is a well- 

 defined impressed line, which ends abruptly at about the anterior 

 4th of the mesonotum. The parapsidal sutures are distinct. The 

 scutellum is flat in front, convex behind and at the sides, and has 

 a wide median groove on its posterior half. The metanotum is very 

 short ; seen from the side very convex. The epinotum at the brow 

 of the declivity is nearly four times as wide as long. The petiole is 

 moderately convex above and at the sides, and one-third wider than 

 long. The ventral lamella is produced into a blunt angular projec- 

 tion, truncated behind and in front. Abdomen cylindrical, all the 

 segments decidedly wider than long. The 6th segment is narrowed 

 towards the apex, which is rounded. The stipites, seen from above, 

 are slightly divergent at their apices, and densely fringed with golden 

 hairs ; the volsellae are long, and reach almost to the apex of the 

 stipites. All the femora are compressed and flattened from front to 

 back, and much wider at the base than at the apex. Wings with a. 

 slightly yellowish tinge, the nervures dark brown. 



The 3 $ of this species are exceedingly common at light during 

 the rainy season in South Ehodesia ; the £ £ , however, do not 

 appear to be so frequently met with as helvolus. 

 ? unknown. (G.A., E.M., S.A.M. colls.) 



