1892.] of the CoUoptera of South Africa, 85 



acute spines ; they have on each side, above the outer margin, a 

 moderately broad, humeral, yellowish-white band coalescing with a 

 median one, and also a third and disconnected band, of the same colour 

 which reaches the apex ; tibiae reddish. 



Length, 13 ; width, 3'"-"^° 



I only know the male (one example) and it is quite possible that the 

 junction of the humeral band with the median one is accidental. 



Closely allied to G, sex-maculata, Chaud., but a little more deeply 

 pitted ; the prothorax is narrower, and the lateral yellow patches are 

 longer and narrower, 



Transvaal (Barberton). 



C. SEX-MACULATA. Chaud. 



pi. II, fig. 8. 

 Bull. Mosc, 1860, IV. p. 306. 



Bluish-black, shining but little on the upper part, dark metallic- 

 blue underneath, and very shining ; head strigose, labrum of the male 

 yellow, edged with black ; that of the female black and yellow in the 

 centre ; prothorax sub-quadrate, finely plicated, impressed transversely 

 in front and behind, grooved in the centre, the two sides of the disk 

 slightly raised ; elytra narrow in the male, ampliated at about the 

 middle in the female, deeply and closely pitted, the suture ending in 

 two apical acute spines, those of the male longer than the female's ; 

 they have on each side, above the outer margin, a humeral elongated 

 spot, a short one at about the middle, and a third one near the apex 

 which it does not reach ; the knees and tibiae are sometimes reddish. 



Length, 14-15 ; width, 4-5"^ "" 



Transvaal (Lydenburg, Potchefstroom), Delagoa Bay (teste Chaud.). 



C. CITREO-GUTTATA. Chaud. 

 Rev. Zoo]., 1864, p. 41. 



Bluish-black, but little shining on the upper part, dark metallic- 

 blue, very shining underneath ; head strigose, labrum of the male 



