266 Mr.J.S. Baly on new Genera and Species of Hispide. 
fere rectis, medio rotundato- vel oblique angustatis, ante apicem si- 
nuatis. Scutellum transversum, apice obtusum. Elytra thorace 
latiora, lateribus parallelis, prope angulum posticum vix ampliatas, 
apice rotundata, angulo postico in spinam vel laminam compressam 
producto, dorso depressa ; humeris in spinam validam lateraliter 
extensis; uterque 4-costatum, interspatiis profunde bifariam punctatis. 
Pedes validi, simplices ; unguiculis approximatis. 
Type, Stethispa Bonvouloirti. Amazons. 
The produced humeral angles of this genus will at once sepa- 
rate it from its allies. 
Stethispa Bonvouloirit, n. sp. 
S. elongata, subdepressa, fulva, subnitida; antennis nigris: elytris 
apice oblique rotundatis, serratis, angulo postico in laminam com- 
pressam trigonam, apice acutam, postice concavam, lateraliter vix 
dilatatam, productis, humeris in spinam validam obliquam, apice 
truncatam, lateraliter extensis; utroque spina humerali, vitta lata 
obliqua submarginali ab humero ad longe pone medium extensa, 
apice dilatata, angulo postico fasciaque subapicali purpureo-eneis. 
Long. 4—43 lin. 
Hab. Amazons; Peru. 
Epistome produced at the base into a flattened ridge, armed 
(in the 3) with two short teeth ; front produced, just above the 
insertion of the antenne, into a longitudinal ridge. Thorax 
nearly twice as broad as long, sides nearly straight and parallel 
at their base, rounded and slightly narrowed in the middle, 
narrowed and sinuate in front; anterior angles armed with an 
obtuse, the hinder with an acute, tooth; disk convex in front, 
flattened behind the middle, surface impressed with large deep 
punctures, which, crowded at the base, become subremote on 
the srdes, and still more distant on the anterior half of the disk; 
lateral border bounded within by a single row of deep punctures; 
medial line impressed with a longitudinal groove, which extends 
from just behind the apical nearly to the basal margin. 
Owing to the indefatigable industry of Mr. Bates, this insect 
is now to be found in most of our collections. 
. 
Stethispa gratiosa, n. sp. 
S. elongata, subdepressa, fulva, subnitida, collo utrinque vitta laterali 
antennarumque dimidio basali uigris; thorace lateribus medio 
angulatis, obtuse dentatis, utrinque vitta laterali obscure nigro- 
purpurea, disci medio linea longitudinali antice abbreviata rufo- 
purpurea : elytris apice obtuse rotundatis, serratis, angulo postico 
in spinam acutam, retrorsum vix curvatam, dorso concavam, late- 
raliter valde productis, humeris in spinam acutam recte lateraliter 
extensis ; utroque sutura ante medium, spina humerali, vitta 
lata submarginali ab humero ad longe pone medium extensa, intus 
