SCHIZONEURIN^. 



This tribal division was made by Passerini, who 

 thought that, as certain insects showed a more com- 

 plex wing venation than others, they should be grouped 

 separately. 



The cubital vein, which is but once forked, takes its 

 rise from a point at some distance from the cubitus, 

 whence the origin of the name. 



