Bui. 112, Bureau of Entomology, U. S. Dept. c* Agr cu ture. 



Plate XII. 



Figs. 1 and 2. —Field Cages Used in Hibernation Experiments on the Alfalfa 



Weevil. (Original.) 



Fig. 3.— Planting a Colony of Imported Parasites of the Alfalfa Weevil 

 in Utah in an Alfalfa Field. Photograph Taken during June, 1911. 

 Original.) 



