16 
THE ARGENTINE ANT. 
cations b} T Prof. C. W. Woodworth, already referred to. All of these 
persons agree that the following California points are infested: Ala- 
meda, Azusa ; Berkeley, Byron Hot Springs, Campbell, College Park, 
Cupertino, Fruitvale, Los Angeles, Melrose, Oakland, Riverside, San 
Francisco, San Jose, Stockton, and Upland. 
C\ 
il / 
m 
m 
Redd/fig % L- 
LASSEN 
ft d*" 
nAPaY^--i\ 
■V '^SOLANO? 
?i5V^ ,M.I 
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- Viff <A COS WBflJESK; 
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Fig. 2. — Distribution of the Argentine ant in California. From data furnished by Messrs. Ralph Benton 
and P. E. Smith. (Original.) 
AREA OF ULTIMATE 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 Mississippi River, 300 miles to the south 
and almost at sea level. They seem to be little or not at all affected 
