Mr. J.8. Baly on new Genera and Species of Hispide. 267 
ante apicem emarginata, apice paullo dilatata, angulo postico 
fasciaque subapicali inter angulos extensa viridi-zneis. 
Fem. Antennis totis nigris, spinis minus productis, elytrorum 
vitta submarginali ante apicem interrupta. 
Long. 33 lin. 
Hab. Amazons. 
Epistome 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. 
Stethispa confusa, n. sp. 
S. subelongata, subdepressa, fulva, subnitida, rufo tincta ; antennis 
nigris; thoracis lateribus medio rotundatis : elytris apice rotundatis, 
vix serratis, angulo postico in spinam dilatatam, acutam, dorso 
costatam, retrorsum paullo curvatam, valde lateraliter productis, 
humeris in spinam acutam modice lateraliter extensis ; utroque 
vitta submarginali paullo pone medium, intus dilatata, fasciaque 
subapicali, rufo-violaceis, spina humerali apice anguloque postico 
metallico-purpureis ; sutura obsolete rufo-fulva. 
Long. 3-33 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 species. Base of epistome produced into a 
transverse ridge ; an indistinctly raised ridge between the fnser- 
tion of the antennz. 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, shining 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 conicicollis, 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 
serratam, lateraliter sat extensam, retrorsum paullo curvatam, 
