U.S. Dl'JMRTMENT OI^^ ACiRlCULIURE, 
BUREAU OF ENTOMOLOGY— BULLETIN No. 71. 
L. O. HOWARD. Entomologist and Chief of Bureau. 
THE 
PEEIODICAL CICADA. 
BY 
C. L. MARLATT, M. S., 
Eiiloinuhi/lst <(ii<l AdiiKj Chief in Absence of Chief. 
Issued July 18, 1907. 
WASHINGTON: 
GOVERNMENT PRINTING OFFICE, 
