254 MB. M. JACOBY Off PHYTOPHAGOUS COLBOPTERA [Mar. 6, 



joints equal, rather short, terminal joints rather thick ; thorax 

 more than twice as broad as long, narrowed io front, the sides feebly 

 rounded, the surface remotely and strongly punctured ; elytra widened 

 towards the middle, the punctures about the same size as those on 

 the thorax and arranged in irregular, very closely approached rows, 

 distinct to the apex ; below and the legs coloured like the upper 

 surface ; the posterior tibia? strongly widened at the apex, with their 

 edges serrate, the emarginate spur at the apex fulvous, as well as- 

 the claws. 



Hah. Nairobi, 550U ft., Kikuyu .Forest, Brit. East Africa 

 (Mr. Mackinder). (Type in the Oxford Mus. Collection.) 



Of rather more robust appearance than D. trimeni Baly, and 

 much more strongly punctured than that species. Differing from 

 B. intermedia Baly in the metallic green legs and the black 

 antenna?. 



Chjetocnema subaterriha, sp. n. 



Black, the antennae, the anterior and posterior tibiae and tarsi 

 flavoua ; bead iinpunctate, deeply foveolate near the eyes ; thorax 

 extremely finely and closely punctured ; elytra deeply punctate- 

 striate, the interstices longitudinally convex. 



Length 2 millim. 



Head entirely impunctate, blackish, opaque, with a deep longi- 

 tudinal fovea near the eyes ; clypeus separated from the face by a 

 deep groove, very broad, nearly subquadrate, its lower portion 

 furnished with some grey hairs ; antennae extending to the middle 

 of the elytra, enthely flavous, the third to the sixth joints slender, 

 the following joints slightly thickened but elongate, basal joint about 

 one-half longer than the second ; thorax about one-half broader 

 than long, the sides slightly rounded, the anterior angles strongly 

 thickened, the surface very minutely, evenly, and closely punctured, 

 the basal margin not accompanied by an impressed line, but with 

 some large punctures at each side; scutellum extremely short, 

 transverse ; elytra very convex, subcylindrical, strongly narrowed 

 and pointed posteriorly, the punctures deep, closely placed and 

 regular, distinct to the apex, the interstices convex, especially so 

 near the sides and apex, impunctate, the fourth, fifth, and sixth 

 interstices shortened and joined at the end, from thence to the apex 

 continued into a single costa ; the anterior legs flavous, as well as 

 the rest of the tibiae and tarsi ; the femora blackish, the posterior 

 ones very greatly incrassate ; underside scarcely punctured ; pro- 

 sternum rugose-punctate. 



Hub. Malvern, Natal (G. Marshall). 



This is one of the few species which show no trace of a metallic 

 gloss, beiug nearly entirely black ; the very convex, posteriorly 

 strongly pointed elytra and their costate interstices, together with 

 the entirely impunctate head, will assist in the recognition of the 

 species. 



