Mr. J. 8. Baly on new Genera and Species of Hispidae. 267 



ante apicem emarginata, apice paullo dilatata, angulo postico 

 fasciaque subapicali inter angulos extensa riridi-aeneis. 



F<em. Antennifl totis nigris, spinis minus productis, elytrorum 

 vitta submarginali ante apicem interrupta. 

 Long. 3 J lin. 



Hab. Amazons. 



Epistomc transversely elevated at the base. Thorax not twice 

 as broad as long, sides nearly straight and parallel from their 

 base to the middle, thence obliquely narrowed and sinuate to 

 the apex ; lateral border obsoletely crenulate, produced in the 

 middle into an indistinct tooth, anterior angles armed with an 

 obtuse tooth, the hinder angles unarmed ; upper surface trans- 

 versely convex, flattened and transversely excavated behind the 

 middle, deeply punctate ; middle of disk closely variolose ; me- 

 dial line with an indistinct longitudinal groove. 



Siethispa confusa, n. sp. 



5. subelongata, subdeprcssa, fulva, subnitida, rufo tincta ; antennis 

 nigris; thoracis lateribus medio rotundatis : clytris apice rotundatis, 

 vix serratis, angulo postico in spinam dilatatam, acutam, dorse 

 costatam, retrorsum paullo cur>atam, valde lateraliter productis, 

 hunieris in spinam acutam modice lateraliter extensis ; utroque 

 vitta submarginali paullo pone medium, intus dilatata, fasciai^ue 

 subapicali, rufo-nolaceis, spina humerali auice anguloque postioo 

 metailico-purpureis ; sutura obsolete rufo-fulva. 



Long. 3-3 i lin. 



Hab. Obydos, Amazons. Collected by Mr. H. W. Bates. 



Very similar in form to Stethispa gratiosa ; the keeled spine 

 at the hinder angles of the elytra will, however, at once distin- 

 guish it from that s|)ccies. Base of epistome produced into a 

 transverse ridge ; an indistinctly raised ridge between the inser- 

 tion of the antennae. Thorax somewhat deeply depressed trans- 

 versely behind the middle ; medial line in front impressed with 

 a longitudinal groove ; surface deeply but not closely punctured, 

 opaque on the sides and base, shinmg and still more distantly 

 punctured on the middle of the disk in front : sides nearly 

 straight and parallel behind their middle, thence rounded and 

 narrowed towards the apex, deeply sinuate immediately behind 

 the anterior angles, the latter produced into an acute tooth ; 

 lateral border of elytra minutely denticulate. 



Stethispa conicicoUis, n. sp. 

 S. elongata, subdepressa, fulva, subnitida, antennarum dimidio basali 

 nigro ; thorace subconico, vitta brevi disci medio posita et utrin- 

 que linea marginali rufo-fuscis : elytris apice rotundatis, serratis, 

 angulo postico in spinam compressam, dilatatam, acutam, postice 

 serratem, lateraliter sat extensam, retrorsum paullo curvatam. 



