Revision of the American Notodontidm. 2G1 



a' J . Wings narrow, outer margin 



oblique Dicentria. 



b {) . Wings broader, outer margin 



more rounded Schizura. 



b 8 . Head hairy, no tuft. 



a 9 . Wings short and broad . . . Litodonta. 

 b 9 . Wings long and narrow. 

 a 10 . Areole originating beyond 



cell PsUacron. 



b 1Q . Areole originating before 

 end of cell. 

 a 11 . Vein 5 from middle of 



discocellular .... Misogada. 

 b 11 . Vein 5 from near upper 



angle of cell .... Notuplusia. 

 b 1 . Vein 8 on secondaries diverging 

 from 7 at middle of cell. 

 a 8 . Apex of secondaries obtuse . . Dognina. 

 b 8 . Apex of secondaries rounded. 

 a 9 . Costal margin of secondaries 

 below not very hairy. 

 « 10 . Apex of primaries very 



acute Ichthyosoma. 



b 10 . Apex of primaries not very 



acute Heterocampa. 



b 9 . Costal margin of secondaries 

 below with long hairs and 



thick tufts Malocampa. 



"\ Antenna) fasciculate. 

 a G . Fascicles long on basal half .... Magava. 

 b 6 . Fascicles short on basal half. 

 a 7 . Vein 8 close to 7 to end of cell. 

 a 8 . Outer margin of primaries 

 oblique. 

 a 9 . Outer margin crenulate. 



a 10 . Palpi with 3rd joint short . Rhuda. 

 b 10 . Palpi with 3rd joint long . Gisara. 

 b 9 . Outer margin not crenulate. 

 a 10 . Veins 3 and 4 on secondaries 



apart Boriza. 



b 10 . Veins 3 and 4 on secondaries 

 from a point. 

 a 11 . Costal margin of second- 

 aries straight at base. 



