38 Trans. Acad. Sci. of St. Louis. 



6 days and 16 hours. The average entire duration of life 

 of fertilized females for the seven instances was 8 days 

 4 hours and 28 4/7 minutes. 



9. The shortest lived male outlived the shortest lived 

 female 1 day 22 hours and 40 minutes. The longest lived 

 male outlived the longest lived female by 1 day and 10 

 hours. The average duration of life of male was greater 

 than the average duration of life of female by 1 day 20 

 hours and 58 2/21 minutes. 



10. Eegardless of age, we find in every case the male 

 surviving its mate. 



11. The shortest duration of life of unfertilized female 

 was 7 days and 30 minutes. The longest duration of such 

 life was 9 days. The average duration was 8 days 7 1/2 

 minutes. 



12. The longest lived fertilized female outlived the 

 longest lived unfertilized female by 19 hours and 30 min- 

 utes. The shortest lived unfertilized female outlived the 

 shortest lived fertilized female by 8 hours and 30 minutes. 

 The average duration of entire life of fertilized female 

 was greater than the average duration of entire life of 

 unfertilized female by 4 hours and 21 1/14 minutes. 



13. The greatest duration of life of female from copula- 

 tion until death was 8 days and 30 minutes. The shortest 

 was 4 days. The average duration of life of female from 

 copulation until death was 5 days 23 hours and 25 5/6 

 minutes. 



14. The number of days which elapsed in the life of the 

 fertilized female from hatching to the time when the first 

 eggs were deposited in the one observation was 3 days. 



15. The average length of time which elapsed in the 

 life of the unfertilized female from hatching until 

 the first eggs were deposited for the two cases observed 

 was 3 days and 12 hours. 



