1892,] of the CoUoptera of South Africa. 89 



slightly grooved in the centre and finely plicated ; elytra elongated, 

 narrow, slightly ampliated past the middle in the female, acuminated 

 behind with the outer margin ending apically in a short spine, and the 

 suture also produced in two sharp spines, longer in the male ; they 

 are covered with closely set, deep, punctures which make them look 

 finely shagreened, and have on each side, above the outer margin, 

 an uninterrupted white band, beginning at a little distance from the 

 base ; the male has also a small humeral spot of the same colour, 

 always wanting in the female. 



Length, 9-10 ; width, 2^-3'"'°" 



This is the only Gosmema known to me, in which the outer margin 

 (as well as the suture) is produced behind in an acute spine. 



Transvaal (Potchefstroom). 



' C. MAEGiNELLA. Bohem. 



Insect. Cafer. 1, p. 22. 



C. ALBICINCTELLA. Bates. Cistula. Entomolog. 1882, p. 334. 



C. ALBOCLAVATA. Dokht. Eev. Mens. d'Ent. p. 4. 



Elongated, brassy, moderately shining on the upper part, underside 



and legs bright bluish-black ; head strigose, labrum broadly infuscated 



at the base and apex in both sexes, and sometimes entirely black in the 



female ; prothorax short, sub-cylindrical, deeply impressed in front and 



behind, slightly grooved in the centre, the sides of the disk very little 



raised ; elytra elongated, nearly parallel in the male, slightly ampliated 



past the middle in the female, convex, closely covered with narrow 



punctures, with the suture ending in two long, sharp spines, shorter in 



the female ; they have on each side, above the outer margin an 



uninterrupted, narrow, yellowish-white band, reaching from base to 



apex. 



Length, 11-13; width, 3-4J™-™- 



Transvaal (Potchefstroom, Boksburg.) 



In my examples, the labrum of the female, although more infuscated 

 on the sides than the male's, is not black in the centre.^ 



'It is the C. alhicinctella of Bates. 



