20 



BULLETIN 358, U. S. DEPARTMENT OF AGRICULTUEE. 



Table XIII. — Fecundity of hibernated female Anthonomus grandis thurberiae mated 

 ■with male A. grandis on cotton squares. 





Date 

 ovi posi- 

 tion 

 began. 



Date 

 oviposi- 



tion 

 ended. 



Oviposi- 



tion 

 period. 



Eggs deposited. 



Date installed. 



Total. 



Per day. 



Maxi- 

 mum 

 per day. 



Tune 19 



July 3 



Sept. 7 

 Sept. 3 

 Aug. 13 

 Aug. 6 

 Sept. 2 

 Aug. 3 

 Aug. 4 

 July 24 

 Aug. 22 

 Aug. 21 

 Aug. 20 

 July 28 

 Aug. 2 

 Aug. 11 

 Aug. 24 

 Aug. 4 

 Aug. 2 

 July 24 



Days. 



67 

 68 

 43 

 40 

 66 

 36 

 33 

 20 

 54 

 45 

 47 

 27 

 36 

 45 

 55 

 32 

 36 

 27 



31 

 77 

 133 

 48 

 72 

 65 

 47 

 31 

 59 

 40 

 51 

 30 

 77 

 71 

 47 

 32 

 35 

 24 



0.5 

 1.1 

 3.1 

 1.2 

 1.1 

 1.8 

 1.4 

 1.5 

 1.1 



.9 

 1.1 

 1.1 

 2.2 

 1.6 



.9 

 1.0 

 1.0 



.9 



3 



Do 



June 28 

 July 2 

 June 28 

 Jime 29 

 ...do 



4 



Do 



8 



Do 



5 



Do 



4 



Do 



5 



Do 



Julv 3 

 July 5 

 June 30 

 July 7 

 July 5 

 July 2 

 June 28 

 ...do.... 



4 



Do 



Do 



3 



4 



Do 



4 



Do 



4 



Do 



4 



Do 



6 



Do 



5 



Do.. 



Julv 1 

 Julv 4 

 Juu'.- 28 

 . do .. 



5 



Do 



9 



Do 



Do 



4 

 4 









Total 



777 

 43.2 

 68 

 20 



970 

 54 

 133 



24 













1.3 



3.1 



. 5 











8 



Minimum 

















The total eggs per female ranged from 24 to 133, with an average 

 of 54, and the general average per day was 1.3 eggs. The oviposition 

 period varied from 20 to 68 days and averaged 43.2 days. 



The progeny of this cross were also mated and produced fertile 

 eggs. 



Fecundity ofhred grandis females on cotton hoUs. — Eighteen pairs of 

 bred grandis weevils were placed with cotton bolls and furnished 

 only this food until death. Seven of these females died without 

 depositing a single egg. The activities of the remaining 1 1 are shown 

 in Table XIV. 



Table XIV. — Fecundity of bred females of Anthonomus grandis on cotton bolls. 





Oviposition. 



Total 

 eggs. 



Eggs per day. 



Date installed. 



Started. 



Ended. 



Period. 



Average. 



Maxi- 

 mum. 



July 9 



July 18 

 July 19 

 July 14 

 Julv 28 

 July 16 

 July 12 

 July 23 

 Aug. 7 

 Aug. 6 

 July 30 

 July 26 



Aug. 3 

 July 25 

 Sept. 7 

 Aug. 22 

 Sept. 6 

 Sept. 10 

 Aug. 7 

 Aug. 17 

 Sept. 16 

 Aug. 17 

 Sept. 16 



Days. 

 17 

 6 



45 

 26 

 52 

 61 

 16 

 11 

 42 

 19 

 22 



5 

 3 



17 

 13 

 17 

 24 

 5 

 2 



5 

 2 



8 



0.3 

 .5 

 .4 

 .5 

 .3 

 .4 

 .3 

 _ 2 



!oi 



.01 

 .4 



1 



Do 



2 



Do 



2 



Do 



2 



Do 



2 



Do 



3 



July 16 



3 



Julv 24 



1 



'Do 



2 



Do . . .. 



1 



Do 



2 







Total 



317 



29 



61 



6 



101 



9 



24 



2 













.3 

 .5 

 .01 





Maximum 







3 



















