162 0CT0G0X0XES. 



above the plane of the elytra, subcordiform, impunctate, dull black. 

 Elytra punctate-striate, clothed throughout with a dense and short 

 pubescence, which almost conceals not only the punctures of the 

 stria?, but the striae themselves ; dark fuscous (when viewed from 

 behind, almost black; when transversely, or in front, flavo-ferru- 

 gineous) : the colour and denseness of this pubescence vary con- 

 siderably in different examples. Antennae short, subincrassated ; first 

 joint narrow at the base, but gradually dilated towards the apex, and 

 deflected outwards ; the second without the dilatation of the first, 

 short, ovate ; the third as long as the first, and gradually but slightly 

 dilated; the fourth, fifth and sixth are slightly but sensibly still 

 further dilated ; black. Legs fulvo-pubescent, shaded on their upper 

 surface (and on the upper and outer surface of the posterior femora) 

 with dark fuscous. 



Cayenne. In the cabinets of M. Deyrolle, Mr. Baly, and the 

 Rev. H. Clark. 



3. Octogonotes Banoni. (Tab. VI. fig. 6.) 



Drapiez, Ann. Sri. Phys. Brnx. iii. p. 191. pi. 39. f. 6. 



Dej. Cat. (1837) p. 407. 

 0. oblongus, ovatus, subparallelus, leviterpubescens,punctato-striatns, 

 niger ; capite brevi, ad basin antennarum bituberculato, granu- 

 late ; tliorace transversa, ad latera marginato et angulato, ad 

 medium basin depresso, flavo ; elytris elongatis, punctato-striatis, 

 vitta undique apud marginem lata, obliterata, a humeris tisque 

 ad apicem, fiava, ad medium elytrorum in macidas duas dilatata ; 

 antennis JUiformibm, n'ujris, art. 8-11 fulvis ; pedibus fiavis, 

 nigro supeme nebulosis. 

 Long. corp. 4 lin., lat. If lin. 



Oblong, ovate, subparallel, slightly depressed, subpubescent, punc- 

 tate-striate, black. Head short, transverse, not produced ; above 

 the labrum is a transverse carination (of a fulvous colour), while 

 immediately above the base of the antenna; are two distinct tuber- 

 cular elevations, more prominent by reason of a fovea between them, 

 and also of a fovea, less prominent and transverse, above them ; eyes 

 globose, situated at a short distance from the base of the head ; the 

 surface is finely granulated, and black. Thorax slightly broader than 

 the head, transverse ; the anterior angles depressed and subacute ; 

 the sides marginate, and produced laterally (a little in front of the 

 middle) into a tooth-like projection ; the basal angles are obliquely 

 truncate; the surface is postmedially excavated and very finely 

 punctate ; in colour flavo-testaceous, finely suffused with fuscous. 

 ScuteUwn triangular, impunctate, black, shining. Eli/tra somewhat 



