A GENERIC REVISION OF THE AMERICAN MOTHS OF THE 

 SUBFAJSIILY IIYPENINAE, WITH DESCRIPTIONS OF NEW 

 GENERA AND SPECIES. 



Bj William Schaus. 



INTRODUCTION. 



No attempt has ever been made to classify the Hypenmae of 

 tropical America. As the North American species have been worked 

 out by the late Prof. J. B. Smith in Bulletin 48 of the United States 

 National Museum, I have not revised them and have merely referred 

 to the type-species of each genus; the genera had to be included in 

 this paper as many of them contained species from the Neotropical 

 region, while others might be represented when the Mexican fauna 

 becomes better known. So much confusion has existed in regard to 

 this subfamily that it was necessary to identify and key the genera 

 in such a way that students would be able to follow a given classifica- 

 tion. It has been necessary to use certain secondary sexual characters 

 in order to facilitate the recognition of genera and species, but the key 

 itself does not always explain the great differences existing in appar- 

 ently aUied genera. In some few cases the venation varies in the 

 same genus, sometimes in the one sex, sometimes between the males 

 and females. For the facility of identification 41 new genera are 

 described and 150 new species. Reference is made to all the Neo- 

 tropical species described as Ilypeninac or apparently referable to that 

 subfamily. The bulk of the known species arc represented in the 

 national collection, to wliich I have added colored drawings of all of 

 Walker's species at the British Museum and Oxford, also of Sir George 

 Hampson's and Warren's which are not in the collection. Of a few 

 of Guenee's um:ecognized species I hope to add drawings later on. 

 Altogether 164 genera and 776 species are referred to, not counting 

 those which sink in the synonymy. 



Key to the genera. 



Without areole 1 



With single areole 55 



With double areole 127 



Proceedings U. S. National Museum, Vol. 50— No. 2132. 



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