14 



BULLETIN 429, U. S. DEPAETMENT OF AGRICULTUEE. 



Table XIII. — Length of incubation of second brood of eggs of the codling moth at Roswell, 

 N. Mex., 1912— Continued. 





Num- 

 ber of 

 eggs. 



Date of— 



Days for 



- 



Observation No. 



Ovipo- 

 sition. 



Appear- 

 ance of 

 red 

 ring. 



Appear- 

 ance of 

 black 

 spot. 



Hatch- 

 ing. 



Red 

 ring. 



Black 

 spot. 



In- 

 cuba- 

 tion. 



24 



94 

 42 

 27 

 87 

 37 

 22 

 29 

 18 



216 

 7 



109 

 82 



304 

 48 



187 



25 



16 



2 



163 

 21 



297 

 15 



102 

 77 

 43 



153 

 SO 

 14 

 14 

 30 

 67 

 11 



110 

 22 

 29 

 12 

 82 

 26 

 22 

 6 



114 



134 



8 



61 



21 



5 



June 28 



29 



29 



30 



July 1 



1 



2 



2 



3 



3 



4 



4 



5 



5 



6 



6 



7 



7 



8 



8 



9 



9 



10 



10 



11 



11 



12 



12 



13 



13 



14 



14 



15 



15 



16 



16 



17 



17 



18 



18 



19 



20 



20 



21 



21 



22 



July 1 

 2 

 2 

 3 

 3 

 4 

 5 

 5 

 6 

 6 

 7 

 7 

 8 

 8 

 8 

 8 

 10 

 10 

 11 

 11 

 12 

 12 

 13 

 13 

 13 

 14 

 14 

 15 

 15 

 16 

 16 

 17 

 18 

 18 

 18 

 19 

 20 

 20 

 21 

 21 

 22 

 23 

 23 

 24 

 24 

 26 



July 2 

 3 

 3 

 4 

 5 

 6 

 6 

 6 

 7 

 7 

 8 

 8 

 9 

 9 

 10 

 10 

 11 

 11 

 12 

 12 

 13 

 13 

 14 

 14 

 14 

 15 

 16 

 17 

 16 

 17 

 18 

 18 

 19 

 19 

 20 

 20 

 21 

 22 

 22 

 23 

 23 

 24 

 25 

 25 

 25 

 27 



July 4 

 4 

 5 

 5 

 6 

 7 

 7 

 8 

 8 

 9 

 9 

 10 

 10 

 11 

 11 

 12 

 12 

 13 

 13 

 14 

 14 

 15 

 15 

 16 

 15 

 16 

 17 

 18 

 17 

 18 

 19 

 20 

 20 

 21 

 21 

 22 

 22 

 23 

 23 

 24 

 24 

 25 

 26 

 26 

 27 

 28 



3 

 3 

 3 

 3 

 2 

 3 

 3 

 3 

 3 

 3 

 3 

 3 

 3 

 3 

 2 

 2 

 3 

 3 

 3 

 3 

 3 

 3 

 3 

 3 

 2 

 3 

 2 

 3 

 2 

 3 

 2 

 3 

 3 

 3 

 2 

 3 

 3 

 3 

 3 

 3 

 3 

 3 

 3 

 3 

 3 

 4 



4 

 4 

 4 

 4 

 4 

 5 

 4 

 4 

 4 

 4 

 4 

 4 

 4 

 4 

 4 

 4 

 4 

 4 

 4 

 4 

 4 

 4 

 4 

 4 

 3 

 4 

 4 

 5 

 3 

 4 

 4 

 4 

 4 

 4 

 4 

 4 

 4 

 5 

 4 

 5 

 4 

 4 

 5 

 4 

 4 

 5 



6 



25 



5 



26 



6 



27 



5 



28 



5 



29 



6 



30 



5 



31 



6 



32 



5 



33 



6 



34 



5 



35 



6 



36 



5 



37 



6 



38 



5 



39 



6 



40 



5 



41 



6 



42 



5 



43 . 



6 





5 



45 



6 





5 



47 



6 





4 



49 



5 





5 



51 



6 



62 



4 



53 



5 



54 



5 



55 



6 





5 



57 



6 



58 



5 



59 



6 





5 



61 



6 



62 



5 



63 



6 



64 



6 



65 



5 



66 



6 



67 



5 





6 



69 



6 







Average 













4.92 

 4 

 2 



4.26 

 6 

 3 



5.62 



Maximum 













8 



Minimum 













4 

















Time of TiatcTiing. — The data in Table XIII, show that the first 

 observation of hatching of eggs of the second brood occurred June 

 21, and continued quite regularly until July 28, thus covering a 

 period of approximately five weeks. 



THE SECOND BROOD OF LARV^. 



Length of feeding period. — Records on the length of feeding period 

 of 489 individual insects are brought together in Table XIV. This 

 period covered a range of from 14 to 44 days, both transforming and 

 wintering larvae being included. The average length of feeding was 

 found to be 21.23 days; maximum, 44 days; minimum, 14 days. 



