328 Habits of the Greenhouse White Fit/ 



Duration of the various stages. 



Egg. Green when laid. Turn brown in two to four days. Hatch 

 in 11 to 14 days from deposition. Mean of 13 cases, 11 days. 



Insfar 1. Active for two to four days, wandering about the leaf. 

 Duration 10 to 12 days. Mean of 13 cases, 11 days. 



10, 10, 10, 10, 11, 11, 11, 11, 11, 12, 12, 12, 12. 



Inslar 2. Inactive. Duration 14 to 22 days. Mean of ten cases, 

 17-8 days. 



14, 14, 14, 14, 16, 19, 21, 22, 22, 22. 



Instar 3. Inactive. Duration five to 36 days. Mean of 20 cases, 

 18 days. 



5, 5, 5, 7, 7, 8, 10, 10, 14, 18, 21, 22, 23, 26, 27, 27, 27, 33, 33, 36. 



Inslar 4. Inactive. Pupa. Duration 21 to 59 days. Mean of 

 17 cases, 37 days. The pupa turns slightly yellow before emergence 

 of the imago. 



21, 24, 24, 24, 25, 26, 31, 40, 41, 42, 47, 47, 51, 53, 53, 59, 40. 



Instar 5. Lnago. Duration. The longest was 38 days, which 

 was during cold weather. 



The weather regulates the duration of all stages, excej^t the egg, 

 which is not affected. Cold weather increases the time, making them 

 live more slowly. 



Summary of Duration of lite various Instars. 



