CONTRIBUTIONS 



TO THE 



NATURAL HISTORY 



OF THE 



LEPIDOPTERA 



OF 



NORTH AMERICA 



VOL. I 

 No. VI 



ON THE GENERIC TYPES OF NORTH 

 AMERICAN DIURNAL LEPIDOPTERA 



BY 



WILLIAM BARNES, S. B., M. D. 



AND 



J. H. McDUNNOUGH, Ph. D. 



