EXPEEIMENTS UPON ACRiEA ENCEDON. 



415 



June 30. Eggs were laid in 4 snmll batches July 2-4, and the female 

 parent died July 6. 



The eggs produced 11 female offspring, all of the form lycia. The dates 

 of emergence were not noted. 



The variation in pigmentation is about the same as that of Family 17. 



Family 19. 



Parents Z, Z'. The male parent Z, of the form lycia, was one of the off- 

 spring, emerging June 29, of the mixed family of parents T, U. The 

 female parent Z', of the form lycia, wa>; also one of the offspring, emerging- 

 June 29, of the same parents T, U. Pairing took place on June 30. Eggs 

 were laid July 1-2, and the female parent died July 5. 



The eggs produced both males and females, all of the form lycia, which 

 emerged on the following dates : — 



Datet^ of 



Emergence. 



1912. 



lycia. 



M;i1p. 



J'"emale. 



Auf>', 9 



10 



2 





„ 10 



2 



2 



„ 12 



4 



1 





„ 13 



4 



7 





,. 14 



4 





4 



" 



Totals 



24 



16 



The variation in pigmentation is rather greater than in Families 17 

 and 18. 



Family 20. 



The parents of this and the next family were not found in Mr. Lamborn's 

 material, and there is no note as to whether they were infuscata or lycia. 

 A box of specimens appears to have gone astray, and it is probable that 

 these two parents were included in it. 



