U.S. DEPARTMENT OF AGRICULTURE, 
division of entomology. 
Bulletin No. 25. 
DESTRUCTIVE LOCUSTS. 
A POPULAR CONSIDERATION OF A FEW OF THE 
MORE INJURIOUS LOCUSTS (OR "GRASSHOP- 
PERS") OF THE UNITED STATES, TO- 
GETHER WITH THE BEST MEANS 
OF DESTROYING THEM. 
BY 
C. V. RILEY, M. A., Ph. D., 
ENTOMOLOGIST. 
PUBLISHED BY AUTHORITY OF THE SECRETARY OF AGRICULTURE. 
WASHINGTON: 
GOVERNMENT PRINTING OFFICE. 
I 89 I . 
