24 Mv. C. J. Gahan on Longicorn Coleoptera 



vith a sjiliie at their outer termination. Antennae in the 

 male reaching to within a short distance of the apex of thi 

 elytra, in the female surpassing but little the middle of the 

 elytra, with the third joint in both sexes but little longer 

 than the scape. 



Criodion cinereum, Oliv. 



Pritnms chmeus, Oliv. Ent. iv. 68, p. 35, pi. xiii. fig. ho ( 2 )- 

 Ciiudwn placidum, Dej. 



Castaneum, griseo sat dense pubescens ; protborace supra leviter 

 tiiberculato, valde subrugoseque punctato, latcribus inaequalibus ; 

 elytris rufo-castaneis, fulvo-griseo sat dense pubescentibus, apici- 

 bus rotundatis et ad suturam brevissime spinosis ; femoribu3 

 intcrmediis posticisque apice unidentatis; antennis quam corpor© 

 paullo ( c? ) vel multo ( $ ) brevioribus. 



Ilah. Cayenne. 



I have here characterized the C. placidum of Dejean ; but 

 I have no doubt that this is the species described and figured 

 by Olivier under the name Prionus cinereus. It may be 

 distinguished from C. fulvopilosum not only by a difference 

 in colour, but by its less distinctly tubercled and more strongly 

 and much more thickly puncturcnl prothorax. 



Criodion anfennafum, sp. n. 



Castaneum, cinereo sat dense pubescens ; protborace parum trans- 

 verso ; basi apiceque constricto, lateribns tubcrosis. subinae- 

 (juahbus, fortiter sat denscquepunctatis, disco leviter tuberculato, 

 sparsim punctato ; elytris apicibus rotundatis, sutura brevitor 

 nuieronatis; fcmoribus intermcdiis posticisque apice breviter 

 unidentatis ; tibiis apice cxtus breviter spinosis ; antennis utroque 

 sexu articulis duodecim distinctis. 



Long. 40, lat. 12 mm. 



I^ah. Venezuela. 



Clothed almost entirely with a rather dense ashy-grey 

 pubescence. Prothorax slightly transverse, constricted at 

 the base and apex, somewhat swollen and uneven along the 

 sides, the latter strongly and rather thickly jnmctured, the 

 disk with three feeble tubercles or callosities and with some 

 strong })uncturcs. Klylra each rounded at the apex, briefly 

 mucronate at the suture. Antennie about equal in length to 

 the body in the male, much shorter in the female ; the third 

 joint longer than the first and second taken together, and 

 more than half as long again as the fourth, the latter shorter 



