Genera and Species of Coleoptera. 31 



not at all ; tibiio short, the distal extremity of the posterior scarcely 

 reaohinp: to the end of the abdomen ; antenna) black, the basal joints 

 with a slight pubescence. Length 1) lines. 



Of the two species of Promeces mentioned by Scrville, one, the 

 Saperda clavicornis of Fubricius, is a Polyzonus. The error is the 

 more remarkable, as he has perfectly well distinguislied Promeces by 

 the setaceous, twelve-jointed antenna) of the males. Pohjzonus 

 clavicornis, a common Cape insect, on the contrary, has the antenna) 

 claviform and eleven -jointed in both sexes. The Comte de Castelnau 

 has failed to notice any peculiarity in the antenna) either of Pro- 

 meces or Polyzonus, and is apparently ignorant of the females of the 

 former, since he ascribes filiform antennae to both sexes, the fact 

 being that they are setaceous, not filiform, in themal^s and clavicorn 

 in the females. With regard to Pohjzonus, the species described 

 above is remarkable for its subcylindrical prothorax rather closely 

 covered with a short decumbent pile, and is distinguished from all 

 others of the genus known to me by the yellow apex of the elytra. 



Polyzonus scalar is (Dej.). 



P. angustus, chalybeatus ; prothorace breviter subovato, rugoso-punctato ; 

 elytris luteis, fasciis tribus latis chalybeatis. 



Hub. Cape of Good Hope. 



Nan'ow, dark steel-blue; head coarsely pimctured, epistome very 

 short, lip large, broader anteriorly, scarcely emarginate, eyes black ; 

 prothorax shortly subovate, very roughly punctm-ed, scarcely pubes- 

 cent ; scutellum narrowly triangular ; elytra strongly and closely punc- 

 tured, luteous yellow, with three broad dark chalybeate bands, the first 

 towards the base, the second in the middle, the third apical ; body 

 beneath steel-blue, with a silvery-grey pubescence ; legs steel-blue, 

 femora of the anterior and intermediate pairs only moderately clavate ; 

 antennoe very dark steel-blue. Length 7 lines. 



In the disposition of the bands on the elytra this species comes 

 nearest Polyzonus Mellyi, White, but is smaller, narrower, with a 

 more ovate prothorax, which is scarcely or not at all pubescent, and 

 with very much broader bands on the elytra. I believe it to have 

 been hitherto unpublished. 



Peomeces [Cerambycidae]. 

 Serville, Ann. de Soc. Ent. de Fr. iii. p. 27. 



Promeces viridis (Dej.). 

 P. viridi-caeruleus, corrugatus ; prothorace brevi, lateribus irregulariter 



rotundatis ; femoribus posticis subclavatis. 

 Hab. Natal. 



