LAEGE C \»n: I M'l.Kl.M l.N is, LI 



65 



Tabu XX XI I. Summary of winter activity as shown by counts of dead weevils Con. 



c\i.\ i.i; I 





Number of dead weevils round In section 



Dum- 



Date. 



i. 



•_> 



3. 



1. 



•">. 



6. 



7. 



- 



''. 



10. 



ber 





L21 



i I 

 1 



S 







1 







1 











36 



7 

 7 



2 

 ...„ 



2 





 



33 



39 



5 



5 



5 



I 

 2 



10 

 L2 



6 



•j 









 

 



(t 







1 



47 



I'D 



1 



3 





 

 8 

 2 

 







293 



November 29 



3 



l 



101 



n; 



3 

 12 



34 



7 



10 



6 



"z 



9 





 

 

 

 







■17 



1907. 



48 





86 





l 





5 



1 



5 

 3 



1 





 

 



12 



4 

 



30 









2 







Total 



143 



18 



141 



54 



137 



41 



'.» 



79 



69 1 3 



a 694 











VICTOR] \. 





L906. 



8 



13 



" "2" 

 3 







"12" 



9 



7 

 4 



14 















35 



December in 



6 



2 



16 



3 



2 



...... 



29 







5 



December 24. 



3 



7 



19 



11 





5 



6 



51 





1907. 

















3 

 6 

 9 

 6 

 9 



4 



10 

 8 

 2 

 11 



5 

 G 

 2 

 8 

 5 



"'is 



10 

 4 

 11 



2 



4 

 1 



1 

 5 







14 





2 



2 

 

 



12 

 14 

 12 



5 



11 

 11 



2 



1 

 



71 





67 





51 





45 















Total . . 



44 



55 



37 



59 



54 



!• 



11 



60 



32 



3 



&3G8 







a This total represents 3.0 percent of all the weevils put in the 



b This total represents 1.7 per cent of all the weevils put in the cage. 



In the section of the table containing the records for Dallas the 

 Large number of weevils found dead in section 6 on January 24, 1907, 

 may be explained by the statement that no previous collection of 

 dead weevils had been made in this section. All but 50 of the wee- 

 vils found were upon cheesecloth stretched horizontally across the 

 section above the ground. The full number is included merely to 

 indicate the proportion of weevils which probably fall to tin 4 ground 

 upon dying. In this section less than 20 per cent remained upon 

 the screen, and it is reasonable to suppose that a similar proportion 

 may have existed in ot her sections. The percentage of mortality in 

 eaeli place is much smaller than the percentage of living weevils. 

 Upon the charts shown in figures 3 to 5 the number of dead collected 

 is indicated by a broken line extending beyond the line representing 

 the number of living weevils. 

 90317 Bull. :: 09 5 



