ir{(» CKPHALODONTA. 



back, convex on the sides ; shoulders very prominent, elevated 

 obliquely upwards and outwards into a stout process, the apex of 

 which is produced into a broad, flattened, acute spine ; surface 

 regularly and deeply punctate-striate, the second and fourth in- 

 terstices from the suture costate, the fii'st of these abbreviated at 

 the base, the alternate interstices on the outer disc towards their 

 apex, together with the sutiu'e, also elevated ; rufo-fuscous with 

 a faint metallic reflexion, each elytron vnth eight bright fulvous 

 spots : the fii'st transverse, on the basal margin ; the second ovate, 

 just below the scutellum, common ; the next two ovate, confluent, 

 placed obUquely below the humeral prominence ; three more below 

 the middle, the fii'st of these nearly circular, placed on the outer 

 disc, and confluent with the second, which is attached to the lateral 

 border, the thii'd rather lower, irregularly ovate, and confluent with 

 the suture ; lastly, the eighth, transverse, placed on the apical 

 margin. Beneath rufo-fulvous ; legs moderately robust, anterior 

 pair elongate, anterior tibiae curved and slightly thickened towards 

 their apex, armed within with a short acute spine. 31ale. 



Hah. Montevideo. 



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



Species mihi iynotce. 

 10. Cephalodonta goniaptera (Perty). 



" Fulvo-ferrugineus, glaber ; thorace mutico ; elytris pictura cseru- 

 lescente, crenato-punctatis, postiee dilatatis, angulo postico extemo 

 in dentem producto. 



" Long. 3|"', lat. If". 



'* Habitat ad flumen Amazonum. 



" Caput breve, glabrum, oculis fuscis. Thorax capite latior, elytris 

 raulto angustior, punctulatus. Elytra planiuscula, densissime et 

 insigniter crenato-pimctata, fulvo-ferraginea, pictura caenilescente 

 subretiformi ; humeris prominulis, apice dilatato, dente ad angu- 

 lum externum latiusculo, compresso, acuto. Subtus cum pedibus 

 bre\iuscuUs fernigineo-ful\-us. Antennae fulvo-ferrugineae." 



Cbalepus goniaptenis, Perty, Delect. Anim. Artie, p. 100. pi. xx. fig. 6. 



I do not know a species agreeing exactly with Perty's description 

 and figiu'e ; but his insect evidently comes into the present group. 



11. Cephalodonta generosa, Guer. 



" Semblable a la preeedente (C. coccinea) pour la forme, les antennes, 

 et les pattes anterieures. Antennes d'un brun rougeatre, avec 

 les quatre grands articles de Textremitc d'un rouge plus prononce. 

 Une bande longitudinale noire au milieu du corselet. Elytres 

 d'un rouge un pen jaunatre, avec une taehe noire, oblique, occu- 



