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



(ienus Hyparpax H'ubner. 



Synopsis of species. 



Median sjiace clear yell^v 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 



red perophoroides. 



Genus Symmerista H'ubner. 



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. 



Fore wings pale cinereous occidentalis. 



Fore wings white. 



Transverse band broad .... scolopendrina. 



Transverse band narrow or broken . . var. albicoina. 



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. 

 Fore wings dark cinereous ...... cinerea. 



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



Fore wings nearly white. 



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



This band very obscure or absent .... var. nivea. 



Genus Melalopha Hilbner. 



Synopsis of species. 

 Lines on primaries not anastamosing, free. 



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



Size sm dler; apical region not distinctly discolored. 



