STENISPA. 15 



3. Stenispa Batesii, n. sp. 



/S. filiformis, convexa, nigro-chalybca, nitida ; thoracc quadi'ato, la- 



teribns rectis, cuprco-scneo, sparse punctato. 

 Long. 2f lin. 



S. filiform, convex above, darlc shining chalybeate. Head smooth ; 

 antenna3 black. Thorax quadrate ; sides narrowly margined, 

 straight and parallel, narrowed and rounded at their extreme 

 apex, anterior angles subacute, the posterior slightly produced 

 laterally, acute ; above coppery green with a brassy tinge, smooth 

 and shining, impressed here and there -with, a few distinct punc- 

 tiu-es. Scutellum smooth, obsciu'e coppery green. Elytra rather 

 broader than the thorax, scarcely four times its length ; sides 

 parallel, subsinuate, narrowed behind to the apex, the latter acutely 

 rounded, obsoletely tliickened ; above convex, slightly excavated 

 at the base ; sides narrowly margined ; siu'face smooth, punctate- 

 striate. Beneath smooth and shining. 



Hah. Amazons. Collected by H. ^Y. Bates, Esq. ; a single specimen 

 in that gentleman's private collection. 



4. Stenispa vidua, n. sp. B.M. 



S. filiformis, convexa, nigro-chalybea, nitida ; thorace quadrato, late- 

 ribus leniter curvatis, postice paullo angustato, disperse punctato. 

 Long. 2i lin. 



S. filiform, convex above, dark shining chalybeate. Head smooth ; 

 antennae black. Thorax quadi'ate, narrowed behind ; sides shghtly 

 rounded, narrowly margined, anterior angles subacute, posterior 

 acute ; above subcylindrical, rather less distantly punctured than 

 in the preceding species. Scutellum smooth, impunctate. Elytra 

 rather shorter and more convex than in the former, similar in 

 j)unctm-ing, but without the depressions at their base. 



Hab. Santarem. Also collected by Mr. Bates. 

 Unique in the Museum Collection. 



These two species are very closely allied, and possibly varieties 

 of the same insect ; not possessing, however, a series, and knowing 

 only a single specimen of each, I have for the present considered 

 them distinct. S. vicina differs from S. Batesii in having the thorax 

 rather broader in front, its surface being somewhat more closely 

 punctured and concolorous with the rest of the body ; the elytra, 

 also, are without the basal depressions visible in the former species. 



b. Antennarum articulo tertio secundo breviori. 



5. Stenispa Clarkella, n. sp. 



S. fihformis, convexa, nigra, nitida ; thorace quadrato, lateribus rec- 



