African Phytophagous Coleoptera. 255 



Head with a few minute punctures, the clypeus distinctly separated 

 by oblique grooves, palpi black, the last joint scarcely shorter than 

 the preceding one, antennae short, extending to the base of the thorax 

 only, black, the lower two joints flavous, terminal joints strongly 

 transverse ; thorax three times broader than long, the sides straight, 

 rounded anteriorly, the anterior margin deeply concave below the 

 eyes, nearly straight at the middle, the disc very minutely and rather 

 sparingly punctured, variolose -punctate near the lateral margins, of 

 a pale brick-red colour, with four round black spots of which two 

 small ones are placed at the middle near the base and the others 

 rather larger a little higher near the sides, scutellum deep black, 

 impunctate, elytra rather finely punctate-striate, the punctures not 

 very regularly placed, below coloured like the upper side, the breast 

 at the sides and the legs black, claws simple, the anterior coxal 

 cavities open. 



Hab. Mashon aland, Salisbury (G. Marshall). 



Mr. Marshall has sent two specimens of this interesting 

 variety which he took in company with the normal form. 



Chrysomela salisburiensis, sp. n. 



Metallic aeneous below, the basal joints of the antennas flavous, 

 thorax metallic green, the sides with a large cupreous patch, deeply 

 depressed and confluently punctured, elytra reddish cupreous, with 

 five metallic green narrow bands, the latter limited by rows of fine 

 punctures, the interstices impunctate. 



Length 7 millim. 



Hab. Mashonaland, Salisbury ; in swamp (G. Marshall). 



I am obliged to separate this species from C. americana, 

 L., to which insect it is otherwise closely allied, for several 

 reasons, the sculpturing of the thorax, that of the elytra 

 and the structure of the male organ is quite different ; in 

 C. americana the lateral margins of the thorax are scarcely 

 raised, and the punctures preceding them are well separ- 

 ated and distinct ; in the present insect, on the contrary, 

 the margins are strongly raised, and preceded by a broad 

 and flattened depression, within which the punctures are 

 so crowded (in the male insect) as to be almost indistinct ; 

 this is not so much the case in the female, but more 

 marked also here than in the allied species, the punctua- 

 tion of the elytra is not deep and regular, but tine, and 

 the rows of punctures are not anything so regularly placed 



