1899.] PHYTOPHAGOUS COLEOPTEBA OP ATRICA. 357 



NoTOMBLA, gen. n. 



Body oblong ; antennae widely separated, very short, the terminal 

 joints transverse, palpi subfiliform ; thorax transverse, without 

 depressions ; elytra glabrous, geminate punctate-striate ; legs short 

 and robust, the posterior femora strongly incrassate, the tibiss 

 widened at the apex, deeply sulcate, the four posterior ones 

 mucronate ; claws appendiculate ; prosternum much narrowed 

 between the coxae ; mesosternum short, deeply bih)bed posteriorly ; 

 the anterior cotyloid cavities closed. 



There are but few genera of Haltiddm which agree with the 

 present one in the widely separated antennae and the punctate- 

 striate elytra ; and although I have only a single specimen before 

 me, the structural differences of the species are so well marked 

 that it will be easy to recognize the insect, which would perhaps 

 best be placed near Am phimela Chap., which is, however, of strongly 

 rounded shape. 



NOTOMELA CYANIPENNIS, sp. n. 



Eeddish fulvous, the apical joints of the antennae fuscous ; 

 thorax strongly and closely punctured ; elytra dark metallic blue, 

 strongly geminate punctate-striate, longitudinally costate near the 

 lateral margin. 



Length 3 millim. 



Head fulvous, closely and strongly punctured, the frontal 

 tubercles in shape of narrow transverse ridges ; clypeus deeply 

 separated from the face by a transverse groove, broader than long ; 

 antennte scarcely extending beyond the base of the thorax, fulvous, 

 the last four or five joints fuscous, the basal joint thickened, 

 curved and moderately long, the second short, the third twice as 

 long, the others shorter and gradually transversely thickened ; 

 thorax more than twice as broad as long, widened at the middle, 

 the sides rounded before the middle, the anterior angles thickened, 

 the surface closely and strongly punctured, but more so at the 

 sides, where the punctures are large and round ; scutellum tri- 

 angular, fulvous ; elytra not wider at the base than the thorax, dark 

 metallic blue, each elytron with nine or ten double rows of strong 

 punctures, the lateral margin strongly thickened in shape of a 

 costa ; underside and legs fulvous, abdomen subremotely punctured ; 

 the first joint of the posterior tarsi shorter than the following two 

 joints together. 



Hab. Cameroons, West Africa {Conrad). 



This species much resembles those of the genus Australica 

 amongst the Chrysomelidce in its general shape. I received a 

 specimen from Dr. Kraatz, of Berlin. 



Halticella, gen. n. 



Bounded, convex ; the eyes surrounded by a sulcus ; the antennae 

 subfiliform ; thorax transverse, without depressions or sulci ; elytra 

 semiregularly punctate-striate, their epipleurae broad ; posterior 



Pkoc. Zool. Soc— 1899, No. XXIV. 24 



