160 " Annals of the South African Museum. 



surface. The superior crests mostly with an enlarged and often 

 sharply pointed posterior tooth ; superior crests of segment 4 some- 

 times single and continuous throughout, but generally more or less 

 distinctly duplicated in its posterior half, the double crests very close 

 together ; superior crests in segment 5 strong and continuous- 

 throughout the whole length of the segment, sometimes slightly 

 weaker in the middle, the accessory superior crest very distinct, 

 composed of 2-4 large, sharp, conical teeth. Teeth of infero-lateral 

 crests in segment 5 often scarcely or not at all enlarged posteriorly. 



Upper surface in all the segments reticularly raised, but otherwise 

 smooth laterally (except for a couple of isolated granules in segment 

 1) but finely shagreened mesially in the anterior and smooth in the 

 posterior segments. Upper surface of segment 1 flattened, or very 

 slightly hollowed out from side to side posteriorly, not grooved 

 mesially, a little longer than wide in the middle, the crests sub- 

 parallel or slightly converging posteriorly ; the shagreened area very 

 large, almost fiat or only slightly concave, occupying at its widest part 

 slightly more than half the width of the upper surface, constricted 

 posteriorly and then widening again, its length almost exactly equal 

 to twice its greatest width ; anterior edge of shagreened area projecting 

 a little forwards in the middle, not so broad as in capcnsis, being 

 somewhat less than half the width of the upper surface, which 

 descends suddenly and perpendicularly along this edge. Segment 2 

 with the upper surface flattened laterally but provided in its anterior 

 tv;o-thirds with a deep, oval, shagreened depression ; the shagreened 

 area occupying only about \ of the width of the upper surface, 2-3- 

 times as long as wide, quite absent from the posterior third of the 

 upper surface, which is slightly depressed but not mesially grooved 

 posteriorly ; anterior edge descending suddenly and perpendicularly 

 or nearly so in the middle. Segments 3-5 mesially grooved, the 

 groove finely granular anteriorly in segment 3, smooth in segment 5. 



Sides and under surface sparsely granular in the anterior and more 

 densely and coarsely granular in the posterior caudal segments ; 

 under surface of segment 5 densely and very coarsely granular 

 throughout, the median and accessory crests being mostly entirely 

 indistinguishable; the sides of segment 5 granular throughout or 

 more or less smooth in the upper part ; vesicle coarsely granular 

 below. 



Pediyalps. — Upper surface of tibia almost smooth, with the 

 anterior crest indistinct or absent ; the anterior side of tibia rather 

 prominent, especially in the ad. S , the length along the upper side 

 in the ? '^l-^'h '^^ the ad. ^ 2-^-2-^ times its width. 



