African Phyto'phagons Golco-ptcra. 3 



cupreous colour above, and in which the elytral punctu- 

 ation is extremely fine and irregular as well as close ; 

 numerous specimens since received from Natal differ in 

 having the thorax of a bright metallic brassy colour, but I 

 am unable to find any other differences of importance, nor 

 in that of the male organ ; the latter is elongate and 

 parallel, the apex rounded with a small projecting point at 

 the middle, the upper surftico below the anterior cavity is 

 finely transversely wrinkled ; the size of the insects differs 

 rather considerably, some being much larger than others, 

 but all are more oblong and convex than the species I 

 refer to H. pyritosa. 



Haltica cyanicoUis, Jac. 



The description of this species was published at the 

 same time and in the same Journal as the preceding one, 

 but whether the insect is really specifically distinct or 

 only represents a local form I am unable to say. The size 

 is larger than the largest specimens of H. cnprea, the 

 thorax is metallic blue or greenish, and the basal sulcus 

 is placed at a longer distance from the basal margin than 

 is the case in the allied species ; other differences consist 

 in the strongly-punctured space in front of the eyes and 

 the more distinctly-punctured elytra. 



Diholia tlioracica, sp. n. 



Black, the basal joints of the antenna and the legs fulvons, head 

 and thorax dark greenish, minutely transversely wrinkled, elytra 

 dark bluish, microscopically punctured, posterior femora black at 

 the apex. 



Length 2i-3 millim. 



Head greenish, minutely granulate or wrinkled, eyes elongate, 

 occupying the entire sides of the head, frontal elevations absent, 

 clypeus broad, antennte not extending to the middle of the elytra, 

 the lower four joints flavous, the others black, basal joint elongate, 

 the following three nearly equal, terminal joints short ; thorax 

 nearly three times broader than long, the sides obliquely narrowed 

 anteriorly, the anterior angles thickened, the entire surface covei'ed 

 with very fine transverse wrinkles, greenish, basal margin broadly 

 and evenly rounded, scutellum small, black ; elytra strongly convex, 

 evenly rounded and widened towards the middle, bluish, with some 

 extremely fine punctures, only visible under a strong lens, legs 

 flavous, the apex of the posterior femora black, posterior tibia? 



