LIFE HISTORY OP CODLING MOTH IN PECOS VALLEY, N. MEX. 5 



occurred June 2. Hence the period of oviposit ion covered practically 

 38 days. 



By a study of Table II it will be noted that the average number of 

 days from the time of emergence to the time of first oviposition was 

 4.4 days; the maximum time 7 days, and the minimum time 2 days. 

 The average duration of the oviposition period was 5.95 days; the 



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Fig. 1.— Emergence curve of the spring brood of the codling moth, Roswell, N. Mex., 1912. (Original.) 



maximum 17 days, and the minimum 1 day. The average number of 

 days from the date of moth emergence to the date of last oviposi- 

 tion was 10.39 days; the maximum, 21 days; and the minimum, 4 days. 



Table II. — Egg deposition of codling moths of the spring brood at Roswell, JV. Mex., 



1912. 



Cage 



Number 



Date of— 



Number of days— 













From 



No. 



of moths. 



Emer- 



First ovi- 



Last ovi- 



Before 

 first ovi- 

 position. 



Of ovipo- 



date of 

 emer- 







gence. 



position. 



position. 



sition. 



gence to 

 last ovi- 

















position. 



1 



13 



Apr. 21 



Apr. 25 



Apr. 28 



4 



3 



7 



2 



10 



22 



27 



29 



5 



2 



7 



3 



12 



23 



28 



30 



5 



2 



7 



4 



26 



24 



26 



30 



2 



4 



6 



5 

 6 



27 

 25 



25 

 26 



29 



May 3 





4 



7 







May 7 



4 



ii 



7 



24 



28 



2 



8 



4 



6 



10 



8 



43 



29 



2 



8 



3 



6 



9 



9 



58 



30 



4 



21 



4 



17 



21 



10 



60 



May 1 



8 



18 



7 



10 



17 



11 



71 



2 



7 



18 



5 



11 



16 



12 



76 



3 



7 



18 



4 



11 



15 



13 



37 



5 



9 



18 



4 



9 



13 



14 



59 



6 



9 



21 



3 



12 



15 



15 



66 



7 



10 



18 



3 



8 



11 



16 



31 



8 



10 



16 



2 



6 



8 



17 



28 



9 



15 



18 



6 



3 



9 



18 



17 



10 



17 



20 



7 



3 



10 



19 



30 



11 



16 



21 



5 



5 



10 



20 



23 



13 



18 



21 



5 



3 



8 



21 



11 



17 



23 



26 



6 



3 



9 



22 



18 



18 



20 



22 



2 



2 



4 



23 



19 



19 



22 



23 



3 



1 



4 



24 



A 



12 

 average 



21 



27 



June 2 



6 



6 



12 





4.4 



5 95 



10 39 





faximum.. 





7 

 2 



17 

 1 



21 

 4 



finimum.. 









