526 Annals of the South African Museum. 



frontal cariuae and including the clypeus longitudinally striate, the 

 rest longitudinally rugulose, a narrow area on each side of the frontal 

 sulcus nearly smooth and shining, with a row of 6 or 7 piligerous 

 punctures. Thorax longitudinally rugulose, with a few stronger rugae 

 on the pronotum and dorsum of epinotum. Sides of prothorax and 

 epithorax moderately shining and reticulate-rugulose, sides of meso- 

 thorax strongly reticulate-punctate and dull. Petiole very lightly 

 reticulate above. Abdomen smooth and shining. Head a little wider 

 than long, not much wider behind than in front, the sides moderately 

 convex, the posterior margin widely but not deeply concave. The 

 scape reaches the hind margin of the head ; all the joints of the 

 flagellum longer than wide, the 1st joint shorter than the 2nd and 

 3rd together, the club 3-jointed. Anterior margin of clypeus almost 

 straight in the middle. Frontal area and sulcus well defined. Eyes 

 placed a little behind the middle of the sides. Pronotum and meso- 

 notum marginate all round, the margin continued on to the epinotuni 

 and joining the lower margin of the spines. Pronotum with a wide 

 and shallow median longitudinal impression, the posterior corners 



Fig. 45. — C. Kneri, Mayr. 



fairly prominent. Pro-mesonotal impression wide, fairly deep at the 

 sides. Mesonotum three-fourths longer than its basal width, furnished 

 with an elongate tubercle or cannula in front, the posterior declivous 

 face forming a little more than one-fourth of its whole length, oblique 

 and merging gradually into the anterior plane. Seen from the side, 

 the profile of the mesonotum forms a continuous convexity, and is 

 distinctly higher than the dorsum of the epinotum. Meso-epinotal 

 suture deep. Dorsum of epinotum very slightly convex lengthwise, 

 trapezoidal, widened towards the apex, its lateral margins continuous 

 with the upper margins of the spines. The latter are long, thin, acute, 

 widely divergent and oblique, longer than the dorsum of the epinotum 

 and as long as the interval between their bases. Declivity of epinotum 

 smooth and shining. Pirst segment of petiole subcordate, wider than 

 long, the anterior angles widely rounded and somewhat raised, the 

 upper face shallowly concave transversely. The sides of the segment 

 are much less sharply bevelled than in the preceding species. Node 

 of 2nd segment oblongo-ovate, one and two-thirds as wide as long, 

 without a median groove. Abdomen one-fourth longer than wide, 

 rather convex above transversely. 



