PREFAT] V 



all sources, published or unpublished, in the effort to make it 

 complete and accurate. Especial recognition must be given to 

 Mr. Win. Beutenmuller. who made many useful suggestions, 

 and to whom I owe a revision of the list of Catocala. Dr. R. 

 Ottolengui has assisted in the Plusiid series, and from many 

 other of my correspondents I received notes that have proved 

 useful. Individual credit is not possible in a work of this 

 kind : but to all who have assisted in its completion my thanks 

 are gratefully given. 



Finally, it must be noted that, wherever I have had no more 

 recent or specific guide, the sequence of species, and in the 

 main, the synonymy, is taken from the list of North American 

 Lepidoptera, by Dr. Harrison G. Dyar, Bull. 52 of the U. S. 

 National Museum. 



-YcTi 1 Brunswick, N.J., 



August jo, 1903. 



SIGNS USED. 



Preoccupied names are marked || 

 Names cited in error are marked % 



Fractional numbers represent additions or corrections made 

 in proof. 



