U. S. NATIONAL MUSEUM 



BULLETIN 166 PLATE 22 



Species of Ethusa. 



1, K. mascarone panamensis, ovigerous female (66797), X 2^2, dorsal view; 2, E. m. americana, male, Tiburon 

 Island, X 3, dorsal view; 3, E. microphthalma, male (66829), natural size, dorsal view. 



