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OURAPTERY xX. 
PuHALENA, auctorum. 
CHARACTER GENERICUS. 
Antenuz2 in utroque sexu setacee, simplices. 
Palpi cylindrici, breviter-hirsuti, obtusi, articulo ul- 
timo penultimo breviore. 
Ale extense ; antice triangulate; postice truncato- 
 eaudata. 
Larva nuda, geometrica, 10-poda. 
OURAPTERYX. 
GENERIC CHARACTER. 
Antenne in both sexes setaceous, simple. 
Palpi cylindric, shortly-hirsute, obtuse, the last shorter 
than the penultimate joint. 
Wings extended ; anterior ones triangular; hinder ones 
truncate- caudate, 
CATERPILLAR naked, looping, with ten feet. 
P 
