References to Plates 16 and 17, omitted. 



PL 16. a. Natural size. b. The same enlarged. 

 c. Part of the antennae, head, &c. magnified. 



PL 17. a. Natural size. b. The same enlarged. 

 c. The antennae magnified, d. d. The fringed lips, 

 with two of the articulated palpi, considerably en- 

 larged. 



The Binder is directed to place each Plate at the end 

 of its respective Genus. 



