Skit. 1894. 1 



Nku.M'Kgkn ^: Dn Au. N. A. Bomuvces. 



113 



Anal tuft not normally bilid. 



Accessory cell moderately long . Euhyparpax. 



Accessory cell reaching half-way to apex of wing. 

 Wings elongate, more than twice as long as 



broad .... Heterocampa. 



Wings shorter, twice as long as broad or less Cecrita. 



Antenna: of (^ pectinated nearly to tip . Misogada. 



Antennce of O pectinated Litodonta. 



Accessory cell absent; veins 6 — 10 stalked. 



Head moderately prominent .... Macrurocampa. 

 Head sunken in the thorax Ellida. 



Subfamily Al'AI ICLODIN.'K. 

 Genus Apatelodes Packard. 



Synopsis of species. 



Outer margin entire btlow vein 5 . .... 



Outer margin deeply excavate between the terminations of veins 



torrefacta. 

 angelica. 



Subfamily XOT()I)ONTIN.>E. 

 Genus Notodonta Ochsenhciincr. 



Synopsis of species. 



Size large; external margin of primaries excavate between the veins . elegans. 

 Size smaller; external margin entire. 



Fore wings shaded with ocher and brown along internal and external margins. 

 Thorax dark ash-gray ....... stragula 



Thorax blackish gray ........ pacifica. 



Fore wing without ocherous brown marks, but with longitudinal black 

 dashes before internal angle. 

 Primaries yellowish at base and disk .... georgica. 



Primaries uniform stone-gray ..... tortuosa. 



f 



Genus Nadata Walker. 



Synopsis of forms. 



Color bufT or orange buff to red. 

 General color buff. 



Excavations on external margin filled in with white . . gibbosa. 



Fringe uniformly ocherous vai. doubledayi. 



Color deep orange red race rubipennis. 



Color straw yellow. 



Wings without black shades . . • . race oregonensis. 



A black shade at end of cell . ... var. behrensii. 



