1892.] of the GoUoptera of South Africa. 79 



cyaneous- black underneath ; head strigose, labrum of the male yellowish- 

 white narrowly edged with black, that of the female black with a 

 median yellowish band ; prothorax very quadrate, irregularly plicated, 

 the discoidal protuberances much raised, and the posterior angles Tery 

 acute ; elytra oblong, somewhat depressed on the upper part in the 

 male, those of the female very convex, acuminated behind, with the 

 sutural apical part a little divaricating and slightly spinose ; they are 

 covered with closely set punctures and have on each side a short 

 ridge running from the base to one-fourth of the length, a dorsal one 

 consisting of four oblique disconnected ridges, and an external uninter- 

 rupted one above the outer margin and reaching from the shoulder to 

 three-fourths of the length ; in the outer margin there is a sub- 

 humeral white dot, a broad one a little past the middle, and an elon- 

 gated band of the same colour near the apex ; the sub-humeral dot is 

 wanting in the female examples which I have examined. 



Extremely near tuberculata ; the carin93 of the elytra are more raised 

 and the marginal dot and patches larger and more clearly defined. 



Length, 15-17 ; width, 4.-b\^-'^' 



Natal (D'Urban) ; Zululand (Eshowe). 



D. TUBERCULATA. 



Var. Transvaalensis. 



Brassy or coppery-green, very shining, underside dark-blue, head 

 strigose, labrum yellowish-white, narrowly edged with black in both 

 sexes ; prothorax irregularly plicated, quadrate with the protuberances 

 of the disk much raised and the posterior angles very acute ; elytra 

 oblong, hardly depressed on the upper part in the male, convex but not 

 much ampliated in the female, acuminated behind, the male with two 

 long, sharp sutural spines, the female's are nearly blunt ; they are 

 covered with closely set punctures, and have on each side a short 

 basal ridge, a dorsal one consisting of four oblique disconnected 

 ridges, and an external uninterrupted one above the outer margin 

 reaching from the shoulder to a little past the middle ; in the outer 

 margin there is a long sub-humeral yellowish-white band, a broad 



