208 CERAMBYCID^. 



longitudine sulcatis ; thorace elongato, oblongo, ad latera pos- 

 tica in utroque modice binodoso, et supra transversim con- 

 stricto ; scutello elongato, cinereo ; elytris cinereis, singulis 

 nigro bilineatis, planis ; striis dorsalibus quatuor punctatis, bi- 

 fariam dispositis, ad marginem anguste unisulcatis extusque 

 serratis et ruodiee pilosis ; abdomine cinereo. 



Listroptera atra, Dej. Cat. 359. 



Chevr. Rev. et Mag. de Zool. 1855, p. 180. 

 Hab. Brazil. 



4. Listroptera atramentaria, n. s. 15. M. 



L. nigerrmia velutina ; elytris (humeris marginibusque exceptis) 

 subgriseo sericeis, planis, marginibus lsevibus, thorace minus 

 elongato ; antennis articulis elongatis gracilibus, 3-7 apice 

 subnodosis. 

 Long. lin. 5-6. 



Deep velvety black ; thorax rather longer than wide, near the 

 front margin a deep transverse impressed line, somewhat angled 

 in the middle behind ; an angled impressed line behind ; the 

 space between the lines somewhat nodose ; under side and sides 

 of thorax with short greyish silky hairs. Elytra depressed, flat, 

 covered with a short yellowish-grey pile, the base obliquely, the 

 shoulder, and the sides narrowly margined with velvety black ; 

 femora without spine at the tip, shank of the femora grooved 

 longitudinally ; under side of abdomen covered with short 

 greyish hairs. 



Antennae in both sexes with long slender joints, the third to 

 the seventh, especially in the males, slightly nodose at the end ; 

 in the male the terminal joints are much more elongated than in 

 the female. 

 Hab. Amazon (Tapayos) (Coll. W. B. Bates). 



5. Listroptera angulata, n. s. B.M. 



L. nigerrirna; thorace curtulo, quadrinodoso, angulis posticis 



prominulis rubro-notatis ; elytris basi nigro oblique angulatis, 



parte cinereo-tomentosa basi solum punctata. 



Thorax shortish, with four protuberances ; posterior angles 

 somewhat prominent, marked with red; elytra at the base deep 

 black, the black part separated from the grey by an oblique line ; 

 the portion which is grey from a short cinereous pubescence, is 

 almost impunctate, the punctures being confined to the basal 

 portion ; antennae slender (a male), about the length of the body. 



Length A.\ lines. 

 Hab. Brazil (Para) (Coll. W. B. Bates). 



