61 



Table XIV. — Selection of squares and relation of feeding to oviposition. 



No. 

 of fe- 

 male. 



Period of observation. 



Squares 

 supplied. 



Squares 



withl 



egg each. 



Squares 



with 2 



eggs 



each. 



Squares 

 fed on 

 only. 



Squares 



with 



both 



eggs and 



feeding. 



Squares 



un- 

 touched. 



1 

 2 

 3 

 4 

 5 

 6 

 7 

 8 

 9 



1902. 



October 23 to November 15 



October 23 to November 27 



October 25 to November 7 



October 23 to October 28 



October 23 to October 28 



November 10 to December 5 . _ . 

 November 10 to November 25 . . 

 November 10 to December 18 . . 

 November 11 to December 12 . - 



Total 



135 

 171 

 96 

 32 



38 

 91 



75 

 107 

 123 



72 

 102 

 74 

 13 

 30 

 34 

 41 

 48 

 63 



2 

 2 



4 

 

 1 

 

 3 

 1 

 6 



25 



29 

 8 

 6 

 2 

 5 

 7 

 12 

 16 



1 

 7 

 1 

 4 

 2 

 1 

 1 

 1 

 6 



35 



31 



9 



9 



3 



51 



23 



45 



32 





868 



477 



19 



110 



24 



238 









A little calculation from these results shows that 82.5+ per cent of 

 all squares attacked received eggs and that 91.7+ per cent of all 

 squares oviposited in received only one egg each. The squares which 

 were. fed upon only formed 17.5— per cent of the total number 

 attacked, and those receiving both egg and feeding punctures consti- 

 tute only 3.8 per cent. The squares receiving two eggs each also form 

 3.8 per cent of all the squares which received eggs only. 



The tendency to confine egg and feeding punctures to separate 

 squares is strongly emphasized by the fact that in 17 instances, in 

 which a total of 116 squares was provided, 91 received eggs only, while 

 the remaining 25 were fed upon, only; another total of 78 squares 

 received 88 eggs in 72 of them, while the remaining 6 were fed upon 

 only. As these two lots include nearly one-third of all the squares 

 punctured, the tendency may be clearly seen. 



FIELD OBSERVATIONS. 



For one series of observations 500 infested squares were picked 

 promiscuously in the field between May 28 and June 9, 1903. 



A previous field examination was made about the middle of Septem- 

 ber, 1902, and this furnishes some very interesting comparisons as to 

 the weevil's work upon the squares, especially at the beginning of the 

 infestation and after it had reached its height. To facilitate an easy 

 comparison, the results are arranged in Table XV. 



