LIFE HISTORY AND HABITS: THE LARVA. 61 
larve recorded, but for uniformity the estimated number of larve 
from the fruit from the 31 trees is used in the table. 
In Michigan the drop and picked fruit from 15 peach trees was 
used, collections beginning June 30 and continuing to August 27. 
These records, it is believed, should show the normal seasonal 
history of the insects in this stage under orchard conditions. Such 
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Fic. 20.—Diagram showing normal emergence from fruit of larve of plum curculio during season 
at Siloam Springs, Ark., Barnesville, Ga., Washington, D. C.,and Douglas, Mich. (Original.) 
records are evidently much more reliable than those which do not 
take account of all of the fruit for the season. 
In Tabie XXII are shown the totals emerging for each of the 
four localities by days, as also the number and percentages of larvee 
emerging by months. 
These same data, summarized by weeks, are shown graphically in 
figure 20. 
