52 TENXHKEDINIDiE. 



4. Pteims violaceus. 

 (Plate IV. fig. 5.) 



Exp. al. 1 poll. 3 lin., long. corp. (S\ lin. 



Head, antenna 1 , tibiae, tarsi, and abdomen blue-black; thorax 

 and femora rufo-testaceous. Wing3 smoky brown, glossed with 

 violet, paler towards Hie tips of the fore wings; a black dot in the 

 second submarginal cell, which exists also in the two following 

 species. 



Bab. Brazil. 



a. 2- (Type of species.) Rio Janeiro. A. Fry, Esq. 



5. Ptenus albicollis. 



Ilylotoma albicollis, Klug, Jahrb. d. Insect, i. p. i'l"\ n. 7(1 ( I>:;-1 i. 

 Bab. Brazil? 



6. Ptenus diversipes. 

 ( Plate IV. fig. 4.) 



Exp. al. 1 poll., long. corp. 5 lin. 



Head, antennas, scuteUum, and hinder pari of thorax steel-blue; 

 abdomen Bteel-blue, shading into violet above; Bcapulae, prothorax, 

 pectus, front and sides of mesothorax, the two first pairs of femora, 

 and base of tibiae rufo-testaceous, as are also the hind femora 

 beneath; the legs otherwise steel-blue. Wings smoky brown, 

 slightly glossed with violet, their extremities clearer; nervurea 

 black or violaceous; third submarginal cell square. 



Hah. Amazons. 



«. $. (Typeofspeci Santarem. II. W. Bates, I 



b. 2 • Amazons. 



7. Ptenus consors. 

 (Plate IV. fig. G.) 



Exp. al. I poll. 2 lin., long. corp. G lin. 



Closely resembles I), diversipes, but the antennae are longer and 

 more pointed ; the second joint is rufous, and the third is piteous 

 beneath. The abdomen is greenish black rather than bluish black 

 above, and the wings are somewhat more opaque and much more 

 strongly glossed with violet. The third submarginal cell distinctly 

 wider above than below. 



Hub. East Brazil. 



a. 0. (Type of species.) East Brazil. Mrs. J. P. G. Smith. 



