226 Mu. M. .TACOBT ON THE [Mar. 15, 



have been twice described by me under different names ; the names 

 of 1895, being the older, ought to be retained. 



Cheiuidisia, gen. nov. {Eumolpidce). 



Oblong, subcylindrical, pubescent; antennae filiform; thorax 

 broader than long, subdepressed, the sides rounded, strongly 

 serrate ; elytra alutaceous, minutely punctured in rows and pubes- 

 cent ; legs slender, the femora dentate, the intermediate tibise 

 deeply emarginate at the apex, claws biHd ; prosternum elongate, 

 very narrow, convex ; the anterior margin of the thoracic episternum 

 concave. 



The insect for which this genus is proposed can only be com- 

 pared to Cheiridea Baly on account of the filiform antennae and 

 the emargination of the intermediate tibiae only, but the thorax is 

 not subglobose, the sculpture of the upper parts is totally different, 

 and the femora are all armed with a tooth ; one or other of these 

 diiferences separates the genus also from Nerissus, Nerissidius 

 Weise, and Stratioderus Weise. The present little insect is 

 interesting in another respect, for the sculpture of the head and 

 thorax is very peculiar and unlike any other with which I am 

 acquainted among the enormous numbers of Phytophaga. It may 

 be compared in a miniature way to the skin of a crocodile, the 

 surface being divided into numerous small fields, between which 

 single hairs are placed at regular intervals. 



Cheieidisia inoenata, sp. nov. (Plate XXII. fig. 10.) 



Black, opaque, the basal joints of the antennae and the tibiae and 

 tarsi fulvous ; head and thorax impunctate, coriaceous, pubescent ; 

 elytra minutely granulate, scarcely perceptibly punctured, fur- 

 nished with rows of white hairs. 



Length 3 millim. 



Head broader than long, without punctures, sparingly clothed 

 with whitish rather long hairs ; the clypeus not separated from the 

 face, bounded at the sides by a distinctly raised, short, perpendicular 

 ridge ; labrum and mandibles dark fulvous, palpi slender ; antennae 

 extending beyond the middle of the elytra, fiavous, the terminal 

 joints fuscous, basal joint subquadrate, thickened, second one-half 

 the length, the third one-half longer, the following joints more 

 elongate ; thorax about one-half broader than long, slightly 

 narrowed at the base, the sides strongly rounded, with a regular 

 row of large teeth, the surface sculptured like the head, opaque, 

 without puncttires, clothed with long whitish hairs ; scutellum 

 subpentagoual, pubescent ; elytra smaller than the thorax at the 

 base, finely coriaceous, obsoletely depressed below the base, the 

 disc with rows of extremely fine punctures and of stiff white 

 hairs ; femora and underside black, tibiae and tarsi fulvous, the 

 metatarsus of the posterior legs nearly as long as the following 

 joints together. 



Hab. Salisbury, Mashonaland ((?. Marshall). 



In one specimen the underside and legs are entirely fulvous. 



