70 PROSOPODONTA. 



in shape to the last species ; posterior angles more acute ; convex 

 above, closely and coarsely pimctm-ed on the sides and base, an- 

 terior half of disc nearly impimctate. Scutclliim smooth, obscure 

 rufous. Elytra broader than the thorax, oblong ; sides parallel, 

 regularly but moderately dilated all round ; apex regularly rounded ; 

 above convex, outer margin inchstinctly rcflexcd ; each elytron with 

 eleven rows of large deep punctures, the hi'st abbreviated ; inter- 

 stices raised, costate towards their apex. Beneath shining black ; 

 apical margin of abdominal segments rufous ; anterior pair of legs 

 slightly elongate. 



Hah. Peru. 



A single specimen in the collection of J. S. Baly. 



Smaller in size, broader, and less elongate than P. limhata, mth 

 which it agrees in colouiing ; thorax also more closely punctured. 



3. Prosopodonta dichroa (Perty). 



Aliiruus dichrous, Perty, Deled. Anini. Artie, p. 99. tab. 20. fig. 3. 



P. oblongo-ovata, leniter eonvexa, dorso subdepressa, nigra, nitida ; 



scutello, elytris, pectore abdomineque rufis ; thorace remote punc- 



tato, margine lateraU bidentato. 

 Long. 2f lin. 



P. oblong-ovate, subconvex, subdepressed along the back, shining 

 black ; scutellum, elytra, breast and abdomen shining red. Ver- 

 tex smooth, impressed with a deep fovea. Thorax one-third 

 broader than long at the base ; sides roimded, narrowed in front, 

 bidentate, anterior angle also tliickcned, and forming an obtuse 

 tooth ; above slightly convex, smooth and shining, impressed on 

 either side and at the base ; remotely punctured, disc impimctate. 

 Scutellum increasing in width from its base to the apex, the latter 

 obtuse. El}i:ra much broader than the thorax, subovate, their 

 apex rounded ; sides parallel, narrowly dilated all round ; above 

 siibconvex, subdepressed along the suture, outer margin nearly 

 horizontal ; each elytron with eleven rows of distinct i:)unctures, 

 the fii'st abbreviated. Beneath pitchy black ; breast and abdomen 

 bright red ; anterior pair of legs incrassate. 



Jlah. Upper Amazons, H. W. Bates, Esq. Rio Negro (Pei'ty). 

 Collection of J. S. Baly. 



Much smaller and broader than either of the two preceding species ; 

 its thorax more distinctly dentate. 



b. TJioracis Jaterihus inermibus. 



4. Prosopodonta rufipennis, n. sp. B.M. 



P. elongata, subconvexa, nigra, nitida ; scutello elytrisque rufis ; 



thoracis lateribus inermibus. 

 Long, ol lin. 



