

CONTRIBUTIONS 



TO THE 



NATURAL HISTORY 



OF THE 



LEPIDOPTERA 



OF 



NORTH AMERICA 



VOL. IV 



No. 1 



A REVISION OF THE GENUS 

 HYDRIOMENA HBN. 



BY 



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



AND 



J. H. McDUNNOUGH, Ph. D. 



DECATUR, ILL. 



THE REVIEW PRESS 



MAY Zi. 1917 



