402 



PEOF. E. B. POULTON ON BREEDING 



Although further evidence is desirable, the whole of Mr. Lamborn^s 

 experiments, so far as they bear on this subject, pohit in one direction. 

 There are no grounds for the belief that parthenogenesis ever takes place in 

 this species, but the determination whether the family is to be all-female or 

 mixed rests solely with the female parent. 



W. A. Lamborn's Breeding Experiments. 



Wild Larv^. — Two sets of wild larvae collected on Comuielina were bred^ 

 and it will be seen that there are indications of an all-female company in the 

 later emergences of the first set and in all except the very latest emergences 

 of the second. 



Wild Larvce 1. 

 These larvse were collected in Googa Creek, about five miles north of Oni. 

 Their whole life-history fell well within the wet season, which lasted from 

 about April 25 to Nov. 15, 1910. The dates of emergence and some of the 

 dates of pupation are shown in the following Table : — 



Dates of 



Pupation. 



1910. 



Dates of 



Emergence. 



1910. 



infuscata and commixta. 



lycia. 



Male. 



Female. 



xAlale. 



Female. 



June 19. 



June 26. 





1 







„ 21. 



„ 27. 





1 







„ 20. 



. 27. 





1 







99 

 ,, — <. 



„ 28. 





1 







— 



„ 30. 



1 







, 



„ 2H. 



July 4. 



1 









— 



„ o. 







1 





— 



„ 6. 









1 



— 



■ „ 7. 



4 



1 



4 



1 



— 



„ 8. 









2 



— 



„ 9. 





1 





6 



— 



„ 10. 







3 



„ 11. 





2 





4 



„ 12. 









7 



„ 13. 









3 



— 



Totals 



6 



8 



5 



26 



