410 



Annals of the South African Museum. 



Thuuberg figured and described it anew in 1810 ; and he described 

 the ? tinder the name of P. spinulosa; the figure he gave is sufficiently 

 good to make the identity of the two as the sexes of one species 

 certain. He described also another species, P. maculata, which is very 

 distinct from P. variolosa, and I am adding another and equally 

 distinct species. The three kinds now known seem restricted to the 

 South- Western part of the Cape Colony. 



Key to the Species. 



MALES. 

 Median part of anterior lobe of pronotum with two high conical 



tubercles, the posterior one higher than the first and 3- or 4- 



dentate behind ; vertex simple ..... variolosa. 

 Median part of anterior lobe of pronotum with one blunt sloping 



tubercle, 2- or 3-dentate behind ; vertex with two conspicuou.. 



conical tubercles ....... maculata. 



Median part of anterior lobe with a blunt transverse tubercle not 



dentate behind ....... namaqua. 



FEMALES. 



Anterior lobe of pronotum with three conical txibercles, the median 

 bi- or trifid ; face strongly tuberculate ; pronotum irregularly 

 splashed with numerous silver patches . . . variolosa. 



Anterior lobe not cristate, face closely granular, a deep excavation 

 behind the anterior lobe, pronotum with four well-defined 

 bands of silver ....... namaqua. 



PNEUM.ORA NAMAQUA, u. sp. 



< . Pale green with the crest of the pronotum and the legs 

 fiavescent, possibly pinkish in life ; head small, face very closely 

 granulate below the ocelli ; antennae moderately long ; pronotum 

 tectiform, the anterior lobe below the level of the crest of the hind 

 lobe, which is also slightly higher about the middle than the anterior 

 part, and somewhat bluntly serrate along two-thirds of the length of 

 the crest, the anterior lobe is divided from the posterior by a broad 

 and deep transverse impression extending from the crest to the humeral 

 angle, it bears a blunt, slightly post median tubercle, having a 

 yellowish patch on each side, the whole surface is covered with closely 

 set granules which invade also the anterior part of the sides of the 

 hind lobe, which is roughly reticulate as far as a diagonal well-defined 

 silvery yellow band extending from crest to lower margin, and less 

 roughly reticulate behind this band ; tegmiua green but with a yellow 

 band along the longitudinal veins ; pectus and legs briefly pubescent, 



