U.S. DEPARTMENT OF AGRICULTURE. 



DIVISION OF ENTOMOLOGY. 



PERIODICAL BULLETIN. SEPTEMBER, 1889. 



Vol. II. No. 3. 



INSECT LIFE. 



DEVOTED TO THE ECONOMY AND LIFE-HABITS OF INSECTS, 



ESPECIALLY IN THEIR RELATIONS TO AGRICULTURE, 



AND EDITED BY THE ENTOMOLOGIST 



AND HIS ASSISTANTS. 



; PUBLISHED BY AUTHORITY OF THE SECRETARY OF AGRICULTURE.] 



WASHINGTON": 



GOVERNMENT PRINTING OFFICE. 



1889. 



