African Phytophagous Goleoptera. 253 



Elongate and nearly parallel, the head very strongly convex at the 

 vertex, the latter sparingly punctured, the clypeus bounded at the 

 separation from the face above by two deep oblong fovea which are 

 divided by a narrow central ridge, antennas extending beyond the 

 base of the thorax, the last five joints very strongly widened and 

 flattened, black or purplish j thorax conical, elongate, narrowed 

 anteriorly, the sides straight, very strongly deflexed, the surface 

 extremely minutely and irregularly punctured, very shining ; elytra 

 subcylindrical, punctured in closely approached irregular rows ; 

 below nearly impunctate, the sides of the thorax extremely finely 

 strigose. 



Hob. Dahomey, Porto Novo. 



I must separate this species from any of its African 

 congeners on account of the sculpturing of the thorax and 

 that of the elytra, which is less closely placed and more 

 regular than in G. compressicomis, Fab. This insect is also 

 of different coloration, the thorax is shorter and broader, 

 and the claws are bifid. G. dejeani, Berth., has a strongly 

 punctured thorax and semi-rugose elytra ; there are speci- 

 mens of the present insect before me of blue, violet and 

 semicupreous colour, in the larger probably female insect, 

 the elytral puncturing is very close and fine, and the 

 interstices are often finely aciculate. 



Anomomcra, Fairm. (Ann. Fr. 1887). 



I cannot find any differences to separate this genus from 

 Ccntroscelis, in which the tibiae are likewise widened into 

 a tooth at the apex. Fairmaire compares his genus with 

 Gonioctena only, but not with the first-named genus, and 

 the dilated posterior femora and the structure of the claws 

 are likewise to be found in Centroscelis ; as to the shape of 

 the prosternum and the state of the cavities, or the smooth 

 or pubescent elytral epipleuraa, the author leaves us in 

 ignorance. 



Chrysomela tra?tsvalense, sp. n. 



Dark aeneous, subopaque, the antennas and the under side and 

 legs nearly black, thorax finely and sparingly punctured, more 

 closely so at the sides, elytra much more strongly and irregularly 

 punctate, the space near the lateral margins impunctate. 



Length 6 millim. 



