Bui. 233, U. S. Dept. of Agriculture. 



Plate II 



■f 



Fig. 1.— Dispersion of the Wild Cotton Weevil. 



Typical location of Thurberia plant, below rock, in Agua Caliente Arroyo, Ariz., about li 

 miles from the mouth of the canyon. (Original.) 



Fig. 2.— Thurberia Thespesioides, Host Plant of the Wild Cotton Weevil. 



Growth of Thurberia at Agua Caliente Ranch, Ariz., under cultivated conditions. This 



is one season's growth from seed. (Original.) 



