246 MR. M. JACOBY ON PHYTOPHAGOUS COLEOPTEEA [Mar. 6, 



deeper punctures is placed near the lateral margins ; below and the 

 posterior femora piceous ; metatarsus of the posterior legs as long 

 as the following joints together. 



Bab. Salisbury, Mashonaland (&'. Marshall). 



Smaller than A. durbanensis Jac.the thorax less transverse, the 

 punctuation of the elytra and the striae more widely placed, and 

 the whole insect of half the size only and much less robust. 



Aphtiiona bicoloPv, sp. n. 



Below bluish black, the head, basal joints of the antenna?, the 

 thorax, and the legs flavous ; thorax transverse, microscopically 

 punctured ; elytra metallic blue, strongly punctured in closely 

 approached rows ; posterior femora dark blue : abdomen fulvous. 



Length 3 millim. 



Of elongate, nearly parallel shape ; the head impunctate, the 

 frontal elevations strongly raised ; the clypeus broadly convex 

 between the antenna?, these extending to about the middle of the 

 elytra, black, the four or five lower joints flavous, the second joint 

 scarcely shorter than the third, the following nearly equal ; 

 thorax one-half broader than long, the sides rounded, narrowed 

 towards the apex, the posterior margin feebly rounded, the surface 

 convex, flavous, with some extremely fine punctures, visible only 

 under a strong lens ; scutellum black ; elytra wider at the base 

 than the thorax, very convex, metallic blue or greenish, the 

 shoulders prominent, the punctures rather strong and arranged in 

 closely approached, somewhat irregular rows, the punctures much 

 finer towards the apex, the interstices somewhat wrinkled; the 

 breast and the posterior femora bluish black ; the rest of the legs 

 and the abdomen fulvous or flavous ; posterior tibiae strongly 

 widened and deeply sulcate ; the metatarsus as long as the following 

 joints together. 



Hab. Headlands, Mashonaland (G. Marshall). 



Of the same coloration as A. bohemani Jac, likewise an African 

 species, but of double the size, and with sttbng and very closely 

 approached rows of elytral punctures. 



APHTHONA MARGINA.TA, sp.U. 



Fulvous, the thorax subquadrate, impunctate ; elytra very closely 

 and finely punctured, metallic blue, the lateral margins flavous ; 

 apex of the posterior femora piceous. 



Length 2| millim. 



Head impunctate, the frontal elevations feebly raised, broadly tri- 

 gonate, the carina rather elongate, distinct ; antennae extending below 

 the middle of the elytra, entirely fulvous, the second joint one-half 

 shorter than the third, this and the fourth equal, the following 

 joints more elongate and slender ; thorax one-half broader than 

 long, the sides feebly rounded, scarcely narrowed anteriorly, the 

 angles distinct, the surface convex, fulvous, impunctate ; scutellum 

 black ; elytra slightly wider at the base than the thorax, the 

 shoulders prominent, the surface very closely and finely punctured, 



