676 on THE PHYTOPHAGOUS COLEOPTERA OF AFRICA. [May 18, 



PlATYXANTHA (?) SCUTELLATA, 11. Sp. 



Fulvous, the antennae (the basal joint excepted), the scutelkim, 

 and the tibias and tarsi black ; thorax without depression, finely 

 punctured ; elytra very closely and finely punctate. 



Length 3 lines. 



Head broad, impunctate, the frontal tubercles very strongly 

 raised, transverse ; clypeus rather broadly swollen ; eyes large ; 

 antennae slender, fuscous or black, the basal joint (sometimes the 

 first three joints) fulvous, the second small, the third double the 

 length but much smaller than the fourth joint ; thorax transversely 

 subquadrate, rather convex, the sides evenly rounded, the anterior 

 angles slightly produced outwards, posterior ones slightly thickened, 

 the surface very finely and closely punctured, without depressions ; 

 scutellum black, shining ; elytra wider at the base than the thorax, 

 convex, parallel, the punctures like those of the thorax and ex- 

 tremely closely placed : underside and legs fulvous ; the tibiae and 

 tarsi black, finely pubescent, like the rest of the underside ; the 

 metatarsus of the posterior legs as long as the following three 

 joints together ; claws appendiculate. 



Hub. Mashonaland {G. Marshall). British Museum and my 

 own collection. 



The shape of the thorax is quite different in this species from 

 that of the preceding, not being narrowed at the base ; it resembles 

 in this respect that of a species of Malacosoma. I cannot, however, 

 find any structural differences of importance to separate the insect 

 from Platyxantha. 



PlATYXANTHA (?) PALLIDA, n. Sp. 



Pale testaceous, antennae fulvous ; thorax transversely sub- 

 quadrate, minutely punctured ; elytra extremely finely and closely 

 punctured. 



Length 3| lines. 



Head as in the preceding species, impunctate ; antennae nearly 

 extending to the apex of the elytra, pale fulvous, the second joint 

 half the length of the third, the fourth twice as long as the pre- 

 ceding joint, the following joints still more elongate and slender ; 

 thorax of exactly the same shape as in P. scutellata and as finely 

 punctured ; scutellum pale ; elytra punctured like the thorax : 

 underside and legs entirely pale fulvous or testaceous. 



Bah. Mashonaland (6*. Marshall). British Mus. coll. and my 

 own. 



Rather larger than P. scutellata and entirely of pale coloration, 

 the antennae still longer and the punctuation also rather finer. 



Note. — Diorrhahda maculiceps. Jac, doubtfully referred by me 

 to this genus, must find its place in Galerucella, as the coxal 

 cavities are open, not closed. I have lately received specimens 

 of this species from .ther Cameroons which do not differ fronj the 

 Abyssinian type, butsvSry greatly in coloration. 



