6 



BULLETIN 1303, TJ. S. DEPARTMENT OF AGRICULTURE 



ring on June 24 and emergence for all moths extending over a period 

 of 28 days. The earliest record of emergence for the second-brood 

 moths occurred August 2 and emergence continued until August 31, 

 a period of 30 days. > 



The emergence of the first-brood moths for 1916 began June 17 and 

 lasted until July 16, covering a 30-day period. For the second-brood 

 moths emergence took place from August 3 to August 30, a period of 

 28 days. 



For 1917 the first-brood moths were found to emerge from June 13 

 to July 12, covering a period of 30 days. The greatest number to 

 appear on a single day was 16 on June 29, while June 23 to July 2 

 marked the period of maximum emergence. The second-brood moths 

 emerged from August 2 to August 30, a 29-day period for emergence. 



Table 2. 



-Times of emergence of the first and second brood moths of the pecan nut 

 case-bearer, Monticello, Fla., 1914, 1915, 1916, and 1917 



First brood 



Second brood 



Date 



1914 



1915 



1916 



1917 



Date 



1914 



1915 



1916 



1917 





Number 

 2 

 2 

 1 



Number 



Number 



Number 



July 23 



Number 

 1 

 3 



4 

 4 

 4 

 9 

 5 

 9 

 5 

 3 

 4 

 9 

 10 

 6 

 1 

 6 

 8 

 1 

 8 

 10 

 12 

 6 

 4 

 9 

 1 

 5 

 4 

 4 

 8 



Number 



Number 



Number 



12 









24.. 









13 







1 

 6 

 1 

 1 

 1 

 2 

 3 

 1 

 4 

 3 



10 



12 

 6 



14 

 6 

 9 



16 

 5 

 7 



14 

 1 

 4 

 1 

 3 

 4 



25 









14 







26 









15 



5 



5 



2 



2 



14 



6 



8 



7 



15 



12 



10 



5 



8 



2 



2 



1 



1 



2 







27 









16 - 







28 









17 



2 



2 

 2 

 4 

 2 

 13 

 10 

 5 

 5 

 4 

 3 

 2 

 1 

 1 

 2 

 4 

 2 



1 

 4 

 2 

 4 



3 



5 

 5 

 2 

 8 

 5 

 6 

 3 

 7 

 6 

 10 

 8 

 9 

 2 

 3 

 1 

 2 

 1 



29 









18 



30 









19 



31 









20 



Aug. 1 









21 



2 



3 



4_ 



1 



1 

 1 

 2 

 2 

 6 



11 

 7 

 5 



10 

 6 

 4 

 3 

 1 

 7 

 3 

 9 

 8 

 5 

 7 

 4 

 4 

 3 

 3 

 1 

 1 



1 

 1 



1 



22 



23 .-. 





24 



5 





25 



6 







26 



7 



1 

 1 





27 



8 



2? 



28 



9 





29 



10 



1 

 3 

 2 



1 

 1 

 3 

 6 



5 

 3 

 2 



1 

 2 



T 



2 

 2 

 2 



1 



30 



11 



1 



July l 



12 





2 



13 



3 



3 



14 



J 



4 





15 



1 



5 





16 





6 





17 ... 



1 



7 





1 



18 



1 



8 





19 



1 



9 





2 



2 



20 





10 





21 



1 



11 







1 



3 



1 



22 





1 



12 







23 





3 



13 





1 



1 



24. ■: 



2 



1 



14 







25 



1 



15 





2 







26 



1 



2 



16 





1 





27 



2 











28 





2 





29 





1 





30 







1 



1 





31 





1 







Total 









Total 



112 



70 



100 



141 



166 



116 



42 



30 



LENGTH OF LIFE OF MOTHS 



The length of life of moths varied from 2 to 15 days, the average 

 for those under observation being about 6 days. The data bearing 

 on this phase of the life history are insufficient to make any general- 

 ization, as only a few observations were made to determine this point. 



