THE CODLING MOTH IN THE OZARKS. 



17 



emergence and oviposition, the length of the life cycle would be: 

 Minimum, 39 ; maximum, 73 ; average, 49 days. These indoor records 

 show an average life cycle 5 days shorter than the outdoor records 

 (on bagged fruit) of 1908. Table XVIII gives a record of the 19€7 

 rearings. 



Table XVIII. — Records from oviposition to emergence of adult of 30 individuals of 

 the second generation reared in 1907 from larvae and pupae of the first generation 

 collected from bands — material kept in laboratory. 



Individual No. 



Egg 

 laid. 



Egg 

 hatched. 



Larva 

 left fruit. 



Moth 

 emerged. 



Time 

 from ovi- 

 position 

 to emer- 

 gence of 



adult. 



1 



July 5 

 ...do 



July 10 

 ...do 



July 27 

 ...do 



Aug. 15 

 Aug. 12 



...do 



...do 



Days. 

 41 



2 



38 



3 



...do 



...do 



July 29 

 ...do 



38 



4 



...do 



...do 



38 



5 



July 10 

 ...do 



July 15 

 ...do 



July 30 

 July 31 



...do 



Aug. 1 



...do 



Aug. 15 

 Aug. 13 

 Aug. 14 



...do 



...do 



36 



6 



34 



9 



...do 



...do 



...do 



...do 



...do 



...do 



35 

 35 

 35 



10. 



...do 



...do 



...do 



...do 



35 



11 « 



...do 



...do 



...do 



...do 



35 



12 



...do 



...do 



...do 



...do 



...do 



...do 



Aug. 2 



...do 



...do 



...do 



...do 



...do 



Aug. 3 



...do 



...do 



...do 



Aug. 16 



...do 



Aug. 25 

 Aug. 15 



...do 



...do 



Aug. 21 

 Aug. 22 

 Aug. 27 

 Aug. 15 



...do 



Aug. 16 



...do 



35 



13.. . 



...do 



...do 



...do 



37 



14 



...do 



37 



15 



16 



17.. 



...do 



...do 



...do 



...do 



...do 



...do 



46 

 36 

 36 



18 



...do 



...do 



36 



21 "!"!"!!""!!!""!!!!"!!"""!!"!!!""!" .'. '. 



...do 



...do 



...do 



...do 



...do 



...do 



...do 



42 

 43 



48 



22 



...do 



36 



23 



...do 



...do 



36 



24 



...do 



...do 



37 



25 



...do 



...do 



...do 



37 



26 



...do 



...do 



...do 



Sept. 16 

 Aug. 17 

 Sept. 1 

 Aug. 15 

 ...do 



68 



27 



...do 



...do 



Aug. 4 

 Aug. 5 



(a) 



(a) 



38 



28 



...do 



...do 



53 



29 



...do 



...do 



36 



30 



...do 



...do 



36 











o Spun cocoon in fruit. 



THE THIRD GENERATION. 



THIRD-BROOD EGGS. 



In the cages third-brood eggs were first secured August 5. The 

 calculated time for their first appearance in the field is 10 days 

 earlier. The last eggs observed were laid in a cage October 16 by 

 moths emerging up to October 1. 



All second-brood and third-brood eggs laid before August 28 

 hatched in 5 days, the usual summer incubation period. During 

 September the egg stage was gradually lengthened toward the maxi- 

 mum period shown in early spring eggs. The eggs from which the 

 third-brood larvae were reared incubated as shown in Table XIX. 



