114 Journal New York Ent. Soc [Vci. ii. 



Genus Hyparpax Hiibner. 



Synopsis of species. 



Median space clear yellsw aurora. 



Median space irrorate or covered by reddish scales. 



Fore wing pink, with only a line of yellow ..... venus. 



Fore wing pale, dull ocherous with lines and irrorations of brownish 



led perophoroides. 



Genus Symmerista HlXbner. 



Synopsis of species. 



A white costal edging albifrons. 



No white edging packardii. 



Genus Nerice ]VaIker. 



N. bidentata Walker. 



Genus Cerura Schrank. 



Synopsis of species. 



Primaries crossed by about eight angularly undulate black lines. 



Secondaries black . multiscripta. 



Secondaries white scitiscripta. 



Primaries crossed at basal third by a broad gray band, sometimes absent. 

 One or more transversa dentate lines on discal area before the sub- 

 terminal shade. 

 Transverse band gray, pulverulent, bordered by black and orange scales. 

 P'ore wings pale cinereous ..... occidentalis. 

 Fore wings white. 



Transverse band broad .... scolopendrina. 

 Transverse band narrow or broken . . var. albicoma. 



Band even blackish, without distinct borders . . . modesta. 

 A double row of venular dots, forming an ellipse, sometimes 



obsoletely connected borealis, 



A single row of venular dots, preceded by a rigid shade line, or 

 discal area immaculate. 

 l'"ore wings dark cinereous ...... cinerea. 



Fore wings pale cinereous .... var. cinereoides. 



Fore *-ings nearly white. 



Transverse gray band distinct .... var, placida. 



This band very obscure or absent ... . . var.n\\tdi. 



Genus Melalopha Hllbncr. 



Synopsis of species. 

 Lines on primaries not anastamosing, free. 



Size large with a distinct large brown apical shade . . albosigma. 



Size smiller; apical region not distinctly discolored. 



