34 Mr. F. P. Pascoe on new Genera 



Eoundecl, very convex, copper-brown ; elytra dark purple, 

 seriate-punctate, each puncture sublinear and surrounded by a 

 metallic-green ring ; head moderately punctured, an impressed 

 line at the base of the antennary rings ; antennae gradually 

 thicker, the third joint about half as long again as the fourth, 

 the third triangular, ninth and tenth very transverse, the last 

 rounded ; prothorax very short, sparingly punctured ; scutel- 

 lum triangular; elytra nearly as broad as long, epipleura very 

 broad at the base, gradually narrower to the apex, seriate- 

 punctate, each puncture surrounded with a greenish metallic 

 ring (not noticeable without the aid of a lens) ; claw -joint 

 nearly as long as (posterior tarsi) or longer than the preceding- 

 joints together. 



EXAPIN^US. 



Cajmt retractum, trausversum ; chjpras apice integer, a capite in- 

 distincte discretus; lahrumhveYQ; m<?»ti«)i subquadratum; labium 

 cordiforme ; antennce verisimiliter apicem versus crassiores, sed 

 articuli terminales quatuor desuut. Prothorax transversus, apice 

 emarginatus. Ehjtra prothoraco baud latiora, convexa. Pedes 

 mediocrcs ; tihke iutermedite arcuatse ; tarsi anteriores articulo 

 basali rotundato et valde ampliati). Processus abdomino-intercox- 

 alis triangularis. Mesosternum V-formi exoavatum. 



This appears to me to be quite an isolated genus which 

 perhaps may be best placed after Tetraj)liyllus. The remark- 

 ably dilated basal joint of the anterior tarsi is possibly only a 

 sexual character. Beyond the above diagnosis the other cha- 

 racters agree with the Cnodaloninai as detined by Lacordaire. 



Exapinceus jjolitiis. 



E. late obovatus, nitide fulvo-castaneus ; capite protboraceque sub- 

 tilissimo punctatis ; elytris seriatina minute punetatis. Long. 

 6 1in. 



Hob. Amnzons. 



Broadly obovate, yellowish chestnut, highly polished ; the 

 suture and base of the elytra a trifle paler, beneath darker ; 

 head rather small, moderately transverse ; third joint of the 

 antennae nearly three times as long as the second, the fourth 

 to the seventh elongate triangular, dark brown (the first three 

 fulvous) ; prothorax more than t^^-ice as broad as long, very 

 minutely punctured ; scutellum small, triangular ; elytra about 

 a half longer than broad, with rows of minute punctures ; 

 fore tibife slightly curved, hind tibia3 straight. 



