Revision of the American Notodontidw. 263 



b 3 . Veins 3 and 4 en secondaries from a 

 point. 

 a 6 . Antenna? pectinated to tips .... Ellida. 

 b 6 . Antennae not pectinated to tips . . Macrurocampa. 

 6 4 . Vein 6 on primaries at or close to angle 

 of cell. 

 ct 5 . Antennae pectinated to tips. 



a 6 . Veins 6-7 on secondaries on long stalk Harpyia. 

 6 f5 . Veins 6-7 on secondaries on short stalk Notela. 

 b 5 . Antennae not pectinated to tips. 



a G . Long tufts of hairs at base of antennae Euharpyia. 

 6°. No tufts of hairs at base of antennae Eimotela. 



b 2 . Veins 6-9 stalked Eunystalea. 



b. Inner margin of primaries with tuft of scales. 

 a 1 . Primaries with areole. 



a 2 . Vein 5 from upper angle of cell. 

 a 3 . Inner margin excised and deeply lobed. 



a 4 . Outer margin of primaries angled . . . Pontala. 

 b\ Outer margin of primaries rounded . . Apela. 

 b 3 . Inner margin of primaries rounded . . . Dylomia. 

 b 2 . Vein 5 from below angle of cell. 

 a 3 . Outer margin crenulate. 



a 4 . Veins 7-8 stalked Naprepa. 



/A Veins 8-10 stalked. 



a 5 . Vein 8 close to 7 to near end of cell . . Lophopteryx. 

 b'°. Vein 8 diverging at middle of cell . . Herbertina. 



c 4 . Veins 8-10 not stalked Odontosia. 



b 3 . Outer margin not crenulate Hyperseschra. 



b l . Areole absent. 

 a 2 . Veins 6-10 stalked. 



a 6 . Antennae shortly pectinated Notodonta. 



b 3 . Antenna? simple Lophodonta. 



b 2 . Veins 7-10 stalked Plieosia. 



B. Vein 5 on secondaries absent. 



a. Areole present. 



a 1 . Antennae pectinated to tips Goacampa. 



b l . Antennae not pectinated to tips. 



a 2 . Vein 8 diverging from 7 at middle of cell . . Kurtia. 



b 2 . Vein 8 diverging at base of cell Anita 



b. Areole absent. 



a 1 . Veins 3 and 4 on secondaries apart Golax. 



b 1 . Veins 3 and 4 on secondaries from a point. 



a 2 . Antennae of £ pectinated on basal half . . Hemiceras. 



b 2 . Antennae not pectinated. 



