CYRTOX. 267 



and glabrous, in colour black (the base of the antenna), the labrum, 

 and the maxillary palpi being suffused with rufo -fuscous). Thorax 

 much broader than the head, transverse, in front emarginate ; the 

 sides are depressed, slightly constricted in front and marginate ; the 

 anterior angles are much depressed ; the surface is impunctate, gla- 

 brous, black. Scutellum triangular, impunctate, and in colour rufo- 

 fuscous. Elytra broader than the thorax, globose, subdepressed, with 

 very fine punctures arranged in the form of stria? ; of a fulvous colour. 

 Antennae robust, short, dilated at the apex, and black. Legs robust, 

 and black. 



Taken by Mr. Bates at Ega, in the district of the Amazon. In the 

 collections of Messrs. Baly, Bates, and the Rev. H. Clark. 



Genus 41. CYETON*. 



PALPI MAXILLARES robusti, incrassati, art. penultimo dilatato. 

 PALPI LABIALES subcylindrici. 

 ANTENNJE robustce, breves, subdilatatce. 

 OCTJLI laterdles, magni, ovales. 

 CAPUT haud antice productum, depressum. 

 THOKAX late transversm, Icevis, impubescens. 



ELYTRA robusta, brevia, subrotundata, depressa, striato-punctata 

 (punctis ad apicem penitus obsoletis), glabra. 



PEDES sat robusti, femoribus tibiisque posticis leviterproductis,femori- 

 bus apicem elytrorum attingentibus ; tibiis posticis rectis, longi- 

 tudinaliter marginatis, inarmatis. 



Labrum short, subrotundate, not medially subsinuate. 



Maxillary palpi (Tab. IX. fig. 5 m) robust, incrassated ; the first 

 joint minute and quadrate ; the second elongate and apically sub- 

 dilated ; the third as long as, and twice the breadth of the second, 

 globose ; the apical joint is broad and much depressed. 



Labial palpi (Tab. IX. fig. 5 ri) more attenuate than the maxil- 

 lary, and subcylindrical, the second and third joints being nearly 

 equal in length. 



Antenna robust, short, with a tendency to dilatation ; approxi- 

 mate, situated between (not below) the eyes; the basal joint is 

 shorter relatively than in the preceding genus, Sparnus, but more 

 elongate than the second joint ; the second is short and ovate ; the 

 third is attenuate, and of equal length with the first ; the fourth is 

 hardly longer than the second ; the rest of the joints are robust and 

 subequal in length. 



os, gibbus. 



