16 



THE ARGENTINE ANT. 



cations by Prof. C. W. Woodworth, already referred to. All of these 

 persons agree that the followmg California points are infested: Ala- 

 meda, Azusa, Berkeley, Byron Hot Springs, Campbell, College Park, 

 Cupertino, Fruitvale, Los Angeles, Mehose, Oakland, Riverside, San 

 Francisco, San Jose, Stockton, and Upland. 





'xi"rs.H,\^t-v^ >f^H^ 



y/d 



Fig. 2.— Distribution of the Argentine ant in California. From dat a furnished by Messrs. Ralph Benton 

 apd P. E.Smith. (Original.) 



AREA OF ULTIM.VTK INFESTATION. 



Up to the present we have no exact data to indicate the final limits 

 of the area which may become infested by these ants. They appar- 

 ently thrive as well at Delta, La., at an elevation of 87 feet, as they 

 do near the mouth of the Mssissippi River, 300 miles to the south 

 and almost at sea level. They seem to be little or not at all affected 



