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



Plate II 



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



Typical location of Thurberia plant, below rock, in Agua Caliente Arroyo, Ariz., about 13 

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







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



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

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



