200 CFKICHRESTUS. 



broad,, transverse depression (giving a decided prominence to the 

 medial disk); near the posterior angles are two deep and well- 

 defined circular foveae ; the surface (with the exception of a trans- 

 verse triangular black margin at the base) is clothed with a rich 

 golden pubescence. Scutellum triangular, somewhat transverse, punc- 

 tate, black. Elytra subcylindrical, parallel, distinctly punctate- 

 striate ; between the striae (and also between the punctures) very 

 finely granulated ; dull black. Antennae filiform, considerably shorter 

 than the elytra, sufficiently robust ; the first joint broad, dilated 

 towards the apex ; the sepond short, ovate ; the third twice the 

 length of the second, and equal in length to the first ; the fourth to 

 the seventh with a slight tendency to dilatation ; black. Legs fus- 

 cous, with the anterior tibiaB and tarsi and the outer and lower side 

 of the postical femora dark fuscous. 



C. Batesii may be at once recognized from other species by the 

 sculpturing of its thorax, the globose anterior disk, and the two cir- 

 cular depressions near the basal angles. 



Ega, district of the River Amazon. In the collection of the British 

 Museum, and also in those of Mr. Baly, Mr. Bates, and the Rev. 

 H. Clark. 



5. Cerichrestus tenuicornis. 



C. oblongus, ovalis, subdepressus, niger ; capite haudproducto, super 

 basin antennarum T foveolato, granulato, nigro, inter oculosfulvo 

 binotato, antice flavo ; thorace subquadrato, ad basin transverse 

 depresso, fusco, utrinque flavo late marginato ; elytris oblongis, 



parallelis, punctato-striatis, nigris, pubescentibus, ad humeros 

 tenue longitudinaliter flavo notatis ; antennis robustis, subflli- 



formibus, nigris ; pedibus flavo- fuscis, tibiis tarsisque anteriori- 

 bus nigro- fuscis. 



Long. corp. 2J-3 lin., lat. l\ lin. 



Oblong, oval, slightly depressed, very dark fuscous or black. Head 

 short, transverse, depressed, not elongated in front ; eyes tolerably 

 large, prominent, extending laterally to the marginal line of the 

 anterior thoracic angles ; antennae approximate, above their insertion 

 and between the eyes is a T-shaped fovea ; the surface at the base 

 of the head is coarsely granulated; labrum and maxillary palpi 

 fuscous ; the anterior surface of the head is ferrugineous, the upper 

 surface black ; between the eyes and adjoining their inner margin 

 are two fulvous markings. Thorax transverse, almost quadrate ; the 

 anterior angles obliquely truncate ; the sides marginate ; at the base 

 and also near the apical angles is a broad transverse depression : the 



