THE CODLING MOTH IN MICHIGAN". 



57 



Table LVII. — Length of incubation of the second brood of eggs, and average tempera- 

 ture during incubation, Douglas, Mich., 1911 — Continued. 







Date of— 



Duration of — 



Average 



No. of 



Num- 













obser- 

 vation. 



ber of 

 eggs. 



Egg dep- 



Appear- 

 ance of 

 red ring. 



Appear- 

 ance of 



Hatch- 



Red 



Blaek 



Incu- 



mean 

 tempera- 

 ture. 







osition. 



black 

 spot. 



ing. 



ring. 



spot, 



bation. 











Days. 



Days. 



Days. 



•#. 



72 



80 



Aug. 22 



Aug. 25 



Aug. 30 ' Sept. 2 



3 



8 



11 



61.81 



73 



50 



Aug. 24 



Aug. 26 



Sept. 2 j Sept. 4 



2 



9 



11 



61.96 



74 



3 



...do 



...do 



...do ! Sept. 5 



2 



9 



12 



62.23 



75 



21 



Aug. 26 



Aug. 30 '...do do 



4 



7 



10 



62.95 



76 



46 



Aug. 27 



Aug. 31 | Sept. 3 ...do 



4 



7 



9 



62.90 



77 



16 



...do.... 



...do '...do 



Sept. 6 



4 



7 



10 



63.17 



78 



26 



Aug. 2S 



...do ! Sept. 5 



3 



8 



9 



62.59 



79 



8 



...do.... 



...do ...do 



Sept." "l 



3 



8 



10 



62.41 



80 



12 



...do.... 



Sept. 1 Sept. 6 

 ...do ...do 



Sept. 8 



4 



9 



11 



62.39 



81 



3 



...do.... 



Sept. 9 



4 



9 



12 



62.84 



82 



8 



Aug. 30 



Sept. 2 Sept. 8 

 ...do '...do 



...do.... 



3 



9 



10 



63. 5S 



83 



5 



...do.... 



Sept. 10 



3 



9 



11 



63.27 



84 



6 



Aug. 31 



Sept. 3 j Sept. 9 

 ...do '...do 



...do 



3 



9 



10 



63. 77 



85 



9 



...do 



Sept. 11 



3 



9 



11 



63.60 



86 



10 



Sept. 2 



Sept. 6 i Sept. 12 



Sept. 15 



4 



10 



13 



62. 14 



87 



40 



Sept. 8 



Sept. 11 Sept. 16 

 ...do !...do 



Sept. 18 



3 



8 



10 



62.46 



88 



20 



...do 



Sept. 19 



3 



8 



11 



62.85 



89 



5 



Sept. 9 



Sept. 12 1 Sept. 17 



...do 



3 



8 



10 



62.34 



90 



3 



...do.... 



...do Sept. 18 



Sept. 20 



3 



9 



11 



62.06 



91 



1 



...do l...do ...do 



Sept. 25 



3 



9 



16 



61.09 



92 



1 



Sept. 10 | Sept. 13 ! Sept. 19 



Sept. 21 



3 



9 



11 



61.86 



93 



2 



...do.... 



...do !...do 



Sept. 22 



3 



9 



12 



61.39 



94 



1 



...do.... 



...do Sept. 20 



Sept. 24 



3 



10 



14 



61.09 



95 



29 



Sept. 11 



Sept. 15 ...do 



...do '...do 



Sept. 22 



4 



9 



11 



61.35 



96 



16 



Sept. 23 



4 



9 



12 



60.92 



97 



1 



'.'.'.do'.'.'.'. 



Sept. 16 1 Sept. 21 

 ...do Sept. 22 



Sept. 24 



5 



10 



13 



61.03 



98 



1 



...do.... 



Sept. 25 



5 



11 



14 



61.11 



99 



3 



Sept. 12 



...do l.-.do 



Sept. 24 



4 



10 



12 



60.71 



100 



1 



...do ...do 



Sept, 25 



4 



10 



13 



60.81 



101 



19 



Sept.* 13" 



Sept. 17 



...do 



Sept. 24 



4 



9 



11 



61.19 



102 



6 



...do 



...do.... 



Sept. 25 



4 



9 



12 



61.27 



103 



4 



...do.... 



'.'.'.do'.'.'.'. 



Sept. 23 



Sept. 26 



4 



10 



13 



60. 93 



104 



1 



...do 



...do.... 



Sept. 27 



4 



10 



14 



60.43 



105 



1 



...do.... 



...do.... 



'.'.'.do'.'.'.'. 



Sept, 28 



4 



10 



15 



60. 47 



106 



5 



Sept. 14 



...do.... 



Sept. 22 



Sept. 24 



3 



s 



10 



61. 68 



107 



1 



...do 



...do.... 



Sept. 23 



Sept. 28 



3 



9 



14 



60.76 



108 



7 



Sept. 17 



Sept. 25 



Sept. 27 

 ...do 



Sept. 29 



8 



10 



12 



59.60 



109 



1 



...do 



Oct. 1 



8 



10 



14 



5S. 55 



110 



2 



...do.... 



'.'.'.do'.'.'.'. 



...do.... 



Oct. 3 



8 



10 



16 



57. SO 



Table LVIII. — Length of incubation of second-brood eggs laid in rearing cages, Douglas, 

 Mich., 1911; summary of Table L VLL. 



Appearance of red 

 ring. 



Appearance of black 

 spot. 



Total incubation 

 period. 



Number 

 of days. 



Number 

 of obser- 

 vations. 



Number 

 of days. 



Number 

 of obser- 

 vations. 



dumber 

 of days. 



Number 

 of obser- 

 vations. 



1 



2 

 3 

 4 

 5 

 6 

 8 



2 

 27 

 41 

 24 

 11 

 2 

 3 



4 

 5 



6 

 7 

 8 

 9 

 10 

 11 



1 



30 

 15 

 12 

 IS 

 22 

 11 

 1 



6 



8 

 9 



10 

 11 

 12 

 13 

 14 

 15 

 16 



13 

 22 

 13 

 9 



17 

 15 

 9 

 4 

 5 

 1 

 2 































