266 Mr. J, 8. Baly on new Genera and Species of Hispidee. 



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 Bonvouloirii. Amazons. 



The produced humeral angles of this genus will at once sepa- 

 rate it from its allies. 



Stethispa Bonvouloirii, n. sp. 



(S. elongata, subdepressa, fulva, subnitida ; antennis nigris : elytris 

 apice oblique rotundatis, serratis, angulo postico in laminam com- 

 pressam trigonam, apice acutam, posticc 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-eeneis. 



Long. 4-4| lin. 



Hab. Amazons; Peru. 



Epistome produced at the base into a flattened ridge, armed 

 (in the d ) with two short teeth ; front produced, just above the 

 insertion of the antennae, 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 sides, 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 lateral! 

 antennarumque dimidio basali nigris ; thorace lateribus medio 

 angulatis, obtuse dentatis, utrinque vitta lateral! 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 



