Technical Series No. 19, Part V. 



U. S. DEPARTMENT OF AGRICULTURE, 



BTJRE^XJ Oin ENTOMIOLOGY. 



L. 0. HOWARD, Entomologist and Chief of Bureau. 



TECHNICAL RESULTS FROM THE GIPSY MOTH 

 PARASITE LABORATORY. 



V. EXPERIMENTAL PARASITISM: 



A STUDY OF THE BIOLOGY OF LIMNERIUM VALIDUM (CKESSON; 



By F». H. TIMBERLAKE, A. M., 



Agent and Expert, Gipsy Moth Parasite Laboratory. 



Issued May 29, 1912. 



WASHINGTON: 



GOVERNMENT PRINTING OFFICE. 



1912. 



