LIFE HISTORY OF CODLIKG MOTH IN PECOS VALLEY, N", MEX. 5 



occurred June 2. Hence the period of oviposition 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 



80 

 75 

 70 



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 so 



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 40 

 35 

 30 

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 10 



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Fig. l.—Emergencecurveofthespring brood of the codling moth, Roswell,N.Mex., 1912. (Original.) 



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

 da3'S 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, N. Mex., 



1912. 



Cage 

 No. 



Number 

 of moths. 



Date of— 



Number of days- 



Emer- 



First ovi- 



Last ovi- 



Be fore 

 first ovi- 

 position. 



Of ovipo- 



From 

 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 



'.\ 



12 



23 



28 



30 



5 



2 



7 



' 4 



26 



24 



26 



30 



2 



4 



6 



5 



6 



27 

 25 



2.5 

 26 



29 

 May 3 





4 

 7 







May 7 



4 



ii 



7 



24 



28 



2 



8 



4 



6 



10 



8 



4.3 



29 



') 



8 



3 



6 



9 



9 



.58 



30 



4 



21 



4 



17 



21 



10 



m 



May 1 



8 



18 



7 



10 



17 



U 



71 



2 



7 



18 



5 



11 



16 



12 



70 



3 



7 



18 



4 



11 



15 



n 



.37 



.", 







18 



4 



9 



13 



14 



r,<.i 











21 



3 



12 



15 



1.1 



m 



7 



10 



18 



3 



8 



11 



16 



;u 



.S 



10 



16 



2 



6 



8 



17 



28 



'.) 



15 



18 



6 



3 



9 



18 



17 



10 



17 



20 



7 



3 



10 



19 



30 



11 



16 



21 



.f, 



f, 



1(1 



20 



23 



l:! 



18 



21 



5 



3 



8 



21 



11 



17 



23 



26 







3 



9 



22 



18 



IS 



20 



22 



2 



'2 



4 



23 



19 



19 



22 



2.3 



3 



1 



4 



24 



A 



12 

 veraKn 



21 



27 



Juno 2 



(! 



6 



12 





4.4 



5. 9,5 



10. 39 





faximiim. 







7 

 2 



17 

 1 



21 



4 



Ilnimum.. 













