118 Mr. H. W. Bates on the 



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

 Long. 9 lin. c? • 



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

 Bates). 



Allied to A. crinitus (King). More slender and elongate. 

 Hind tibite 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. Antenna rather slender ; joints dilated 

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

 form to i\\?doi A. crinitus ^\mi 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 femoratusj Klug. 



Stenopterus femorntus, King-, Entom. Bras. Specim. alter, p. 57, t. xliv. 



f. 10, d. . . 



Acyphoderes brachialis, Pascoe, Journ. of Entom. i, p. 369, (^ . 



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 King's well-known figure. 



AA. Thorax with dorsal ridges. 



4. Acyphoderes hirtipesj Klug. 

 Stetiopterus hiHipes, Klug, I. c. p. 55, t. xliv. f. 9, § . 



S. Brazil. 



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

 those of A. femoratus ^ . 



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. 

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

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

 distinction. 



