FAMILY DIXID.T: 81 



KEY TO GENERA 



1. Second vein branched Dixa Meigen 



Second vein simple (New Zealand) Neodixa Tonnoir 



Subgenera of Dixa 



1. Hind margin of the wing evenly rounded 2 



Hind margin of wing produced at end of fifth vein; all veins in apical 



part of wing parallel Dixapuella Dyar & Shannon 



2. Crossvein connecting the fourth vein and anterior branch of the fifth 



vein strong 3 



Crossvein connecting anterior branch of the fifth vein and the fourth 

 vein faint Dixella Dyar & Shannon 



3. First flagellar segment fusiform or oval 4 



First flagellar segment cylindrical, five times as long as wide. 



Paradixa Tonnoir 



4. First flagellar segment oval, about two and one-half times as long as 



wide Nothodixa Edwards 



First flagellar segment fusiform; at least three times as long as wide. 



Dixa Meigen 



