TelephoridcB from Central and South America. 331 



as tlie head across the eyes, very nearly as broad as long, 

 tlie anterior angles rounded, the sides nearly straight, in- 

 crassate but not reflexed, the posterior angles distinct. 

 Elytra a little broader than the thorax, a trifle narrower at 

 the apex, finely coriaceous, sparingly pubescent, visibly 

 punctured towards the apex. Legs long and slender, the 

 femora obscure yellow, the tibiaa and tarsi dusky. 



Hah. — Mexico. 



Var. — Legs uniform yellowish. 



Cliaidiognathus sulphureus, sp. n. 



Elongatus, gracilis, flavescens ; capite, thorace, antennis 

 pedibusque fuscis ; elytris sulphureis, apicem versus angus- 

 tatis. ? . 



Long. 1\ lin. 



Closely allied to the preceding, but besides the difference 

 of coloration, the thorax is a little less narrow, as broad as 

 long, with the sides distinctly but not broadly reflexed ; the 

 elytra are more densely clothed with flne pubescence, 

 narrowed towards the apex, finely coriaceous, with no 

 visible punctuation towards the apex, as in the foregoing 

 species. The legs are very long and slender, fuscous, with 

 the coxge and base of the femora yellow. 



Hah. — Nauta, Amazons (Bates). 



Xenismus, gen. n. 



Characters of Telephorus, but with the head evenly 

 convex above, and with a distinct well-defined transverse 

 labrum, Avhich is about four times as broad as long, 

 separated from the epistoma by a curved line, the anterior 

 border parallel to the posterior. 



I have not been able to find any Telephorid, nor, indeed, 

 any Malacoderm, with the peculiarity presented by the 

 part which I have above alluded to as the labrum, and I 

 am in doubt as to whether this part should be termed the 

 labrum or clypeus. The solidity of its texture, and its 

 close contact at the ends with the cheeks, incline me to 

 consider it the clypeus (in which case the labrum would be 

 so reduced as to be invisible), but the presence of a distinct 

 clypeus is also foreign to the Telephoridoi. with which 

 the species must, however, undoubtedly be associated. 



Xenismus nirjroplagiatus. 

 Flavus, nitidus ; elytris fortiter (apicem versus subtilius) 



