124 Annals Entomological Society of America [Vol. XV, 



The South American species with contiguous eyes of the male are 

 subdivided between the genera Xenomorpha Macquart, Mesomyza 

 Enderlein and Nonacris Walker ; while those with the separated and hairy- 

 eyes of the male are united in the genus Ckiromyza Wiedemann. But 

 this proceeding is evidently contrary to Wiedemann's statement, which 

 says in the original diagnosis of the genus: " * * * oculi maribus 

 contigui: * * * Augen beim Mannchen zusammenstossend * * *" 

 I am therefore of the opinion that the nomenclature used by me is 

 more correct. The type species vittata Wiedemann was described only 

 from the female sex, and thus there are no male types of it ; Enderlein 

 moreover, has not seen the female type. The genus Inopus is placed in 

 synonymy with Xenomorpha; the genera Lagarus and Lagarimis are 

 not mentioned at all. 



