118 Mr. H. W. Bates on the 



ovato, postice constricto ; olytris disco fuscescenti-albis vitreis. 

 Long. 9 lin. c? • 



Prov. Parana, Brazil {coll. W. W. Saunders and H. W. 

 Bates) . 



Allied to A. crinttus (Klug). More slender and elongate. 

 Hind tibiae with the apical half dilated externally, and densely 

 clothed with rather short black hairs. Head slender ; muzzle 

 greatly elongated and narrow ; eyes (male) nearly approaching 

 in front the mesial line. Antennie rather slender ; joints dilated 

 at the apex, and serrate from the fifth joint. Thorax similar in 

 form to i\\Viioi A.crinitus^'hui narrower, considerably constricted 

 near the base ; disk depressed. Elytra subulate, reaching 

 scarcely the middle of the fourth segment ; disk pale, vitreous ; 

 borders black, not clearly defined. Beneath, the breast clothed 

 in the middle with a dense woolly tawny-grey pubescence; 

 metasternum very broad, keeled down the middle. Abdomen 

 (male) slender, cylindrical ; terminal ventral segment with 

 two elevated ridges, with their anterior angles projecting and 

 pointed. Legs black ; hind femora elongate, gradually clavate. 



3. Acyphoderes femoratus^ Klug. 



Stenopterus fcmonttus, King, Entom. Bras. Spocim. alter, p. 57, t. xliv. 



f. 10, c?.' . . 



Acyplioderes brachialis, Pascoe, Journ. of Entom. i. p. 369, cJ . 



Brazil. 



Pascoe's description agrees closely with that of Klug ; and 

 the figure quoted represents clearly the singular form of the 

 anterior legs, which struck both Pascoe and Lacordaire, who 

 both appear to have overlooked Klug's well-known figure. 



AA. Thorax with dorsal ridges. 



4. Acyplioderes MrtipeSj Klug. 

 Stenopterus hirtipes, Klug, I.e. p. 55, t. xliv. f. 9, 5 . 



S. Brazil. 



The anterior legs of the male are very similar in form to 

 those 0^ A. femor at us ^. 



In both these species the muzzle is intermediate, as to length 

 and narrowness, between A. crinitus and A. aurulentus. The 

 thorax is elongate and almost cylindrical in A. femoratus (al- 

 though showing faint dorsal ridges), a little more ovate in A. 

 Mrtipes^ differing much in shape according to sex in both spe- 

 cies. This character, therefore, is of no avail as a generic 

 distinction. 



