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 ZWALUWENBUEG, 



Entomologist. 



UNDER THE SUPERVISION OF 



STATES RELATIONS SERVICE, 

 Office of Experiment Stations, 



U. 8. DEPARTMENT OF AQRICULTUEE. 



WASHINGTON: 



GOVERNMENT PRINTING OFFICE. 

 1918. 



