Issued February 12, 1918. 
PORTO RICO AGRICULTURAL EXPERIMENT STATION, 
D. W. MAY, Agronomist in Charge. 
Mayaguez, P. R. 
Bulletin No. 23. 
THE CHANGA 
OR WEST INDIAN MOLE CRICKET. 
BY 
R. H. VAN ZWALUWENBURG, 
Entomologist. 
UNDER THE SUPERVISION OF 
STATES RELATIONS SERVICE, 
Office of Experiment Stations, 
V. 8. DEPARTMENT OP AGRICULTURE. 
WASHINGTON: 
GOVERNMENT PRINTING OFFICE. 
1918. 
