32 



BULLETIN 429, U. S. DEPARTMEIsrT OP AGRICULTURE. 



time at which it was possible for the stage to begin, while the dotted 

 lines following the shaded areas represent a possible continuation 

 of any particular stage as shown by observations which may, in many 

 instances, represent extreme conditions. 



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Fig. 4.— Diagram of the seasonal history of the codhng moth for 1912, Roswell, N. Mex. (Original.) 

 BAND-RECORD LARV^ OF 1912. 



Throughout the season careful record was kept of larvae collected 

 from banded trees in orchards, and the results of these observations 

 appear in Table XXXI. 



Collections from field material began as early in the season as 

 May 26, and continued regularly every three days throughout the 

 season. In this way a total of 9,400 larvae were collected, of which 

 number 6,922 transformed and emerged as moths. Of the 6,922 moths 

 which comprise the total emergence for both seasons, 4,636 moths 

 appeared during the season of 1912, and 2,286 moths emerged from 



