46 
Psyche 
[February 
Explanation of Plate I. 
At left. The appearance of corn stalks after woodpeckers have fed on 
the larvae of the European corn borer that the stalks harbored. The section 
to the right shows the holes made by these birds in reaching the larvae. 
The two sections to the left are of one corn stalk split open to show the 
condition of the center of the stalk, all the larvae having been removed by 
these birds. 
At right. Corn stalks infested by the European corn borer showing 
the appearance of the stalks after birds such as blackbirds and grackles 
have broken them open and devoured the larvae that they contained. 
