BULLETIN 1243, U. S. DEPARTMENT OF AGRICULTURE. 



Table 1. — Egg deposition records of a jew representative females of the Mexican 

 bean beetle in cages, Birmingham, Ala., 1921 and 1922 — Continued. 



1922— Continued. 



OVERWINTERED FEMALES— Continued. 



No. LH-16: Female emerged from hibernation cage April 5; 20 days between emergence and first eggs. 



Apr. 25. 

 May 1. 

 6. 

 9. 

 15. 

 22. 



Eggs. 

 73 

 55 

 50 

 75 

 67 

 72 



May 31. 

 June 3. 



7. 



9. 

 12. 



Eggs. 

 71 



June 17 



Eggs. 

 56 



50 

 59 



23 



19 



58 



59 



57 



Total 



821 



June 15.. 

 22.. 

 July 5.. 

 62. 

 8.. 

 11.. 



June 19. 

 July 4. 



July 29. 

 Aug. 1. 



3. 



6. 



9. 

 12. 



Aug. 



12.. 

 14.. 



152. 



17 2. 



FIRST GENERATION FEMALES. 

 No. LH-3G: Female emerged June 4; 11 days between emergence and first eggs. 



Eggs. 



."."."."."" 54 



Eggs. 



29 



55 



7 



July 12 2. 

 13.. 

 152. 

 17.. 

 20.. 

 222. 



July 23. 



27. 



28. 

 Aug. 1. 



Total. 



Eggs. 

 52 

 14 

 35 

 56 



497 



No. LH-5G: Female emerged June 5; 14 days between emergence and first eggs. 



Eggs. 

 55 

 57 

 57 



July 11. 

 14. 



Eggs. 

 63 

 59 



July 18. 



Eggs. 

 54 



Total 345 



SECOND GENERATION FEMALES. 

 No. LH-3G2: Female emerged July 19; 10 days between emergence and first eggs. 



No. LH-5G2: Female emerged July 24; 8 days between emergence and first eggs. 



Eggs. 

 43 

 54 



Aug. 14 

 17 



53 



18 



54 



21 



52 



25 



50 



27 



Female 



emerged 



Eggs. 

 41 



Aug. 18 



60 



20 



60 



22 



64 



24 



65 



26 



40 



29 



62 



Sept. 1 

 3 





5 



Eggs. 

 57 

 54 

 59 

 57 

 23 

 55 



Aug. 29. 

 Sept. 1. 



3. 



6. 



Eggs. 

 50 

 55 

 55 

 55 



Total. 



Eggs. 

 55 

 61 

 62 

 63 

 64 

 60 

 51 

 62 

 61 



Sept. 6 2. 

 7.. 



Eggs. 



Total 1,214 



THIRD GENERATION FEMALES. 

 No. LH-2G3: Female emerged August 26; 14 days between emergence and first eggs. 



Sept 



55 



9. 

 11 

 14 

 17 



15 

 19. 

 24 

 27 







Eggs. 









62 









60 









64 









54 



Sept 



No. 



LH-3G3: 



Female < 



Eggs. 

 62 







30 









61 









65 



Sept. 20. 



23. 



26. 



30. 

 Oct. 3. 



Eggs. 

 64 

 63 

 55 

 68 

 58 



Oct. 9. 

 24. 



Nov. 8. 



Eggs. 

 55 

 47 

 58 



Total 708 



24. 

 Nov. 2. 



Eggs. 

 63 

 63 

 60 

 53 



67 



Total 524 



2 Mating observed this date. Females paired when emerged except in case of LH-9 and LH4-2, 1921, 

 which were isolated. 



The average number of eggs laid by all the females for which 

 records are complete for the two seasons is shown in Table 2. 



