710 



MB. E, A. ELLIOTT ON THE 



male and three-jointed in the female ; only in Schlettererius and 

 Steplianus serrator they are five-jointed in the female and three- 

 jointed only in ^S'. tihiator male. 



Text-fie-ure 1. 



Stephanus. 



1. Neuration complete. 



Par3Stephane)lus. 



2. Discoidal cell \-\ of cubital 

 cell, not touching the submedian, 

 and more or less petiolate. Ex- 

 ternal submedian cell open behind. 

 Radius not extending to margin 

 of wing. 



Hem/stephan us. 



A/eostephanas. 



3. Discoidal cell about as large 

 as cubital, touching submedian 

 cell. External submedian cell 

 open behind. Radius extends to 

 margin of wing. 



4. Cubital and discoidal cells 

 wanting ; external submedian cell 

 open behind. 



5. External submedian cell is 

 indicated by a part of the median 

 nervure onlv. 



Foenatopus. 



6. External submedian cell en- 

 tirely wanting. 



Dias tephanus. 



The neuration of the wings shows five, apparently constant 

 forms, which have been utilized as the foundation of as many 

 subgenera. 



