18 



BULLETIN 964, U. S. DEPARTMENT OF AGRICULTURE. 



Table VI. — Incubation records of eggs obtained from one female of the garden flea-hopper, 



Columbia, S. C, 1915 

 Cage 15-631. 



Deposited— 



Hatched— 



Incu- 

 bation 

 period. 



Deposited— 



Hatched— 



Incu- 

 bation 

 period. 



Date. 



Num- 

 ber of 



eggs. 



Date. 



Num- 

 ber of 



eggs. 



Date. 



Num- 

 ber of 



eggs. 



Date. 



Num- 

 ber of 



eggs. 



July 28... 



29... 



30... 



31... 



Aug. 1 . . . 



2... 



3... 



4... 



5.- . 



6... 



7... 



8... 



9... 

 10... 

 11... 

 12... 

 13... 

 14... 

 15... 

 16... 



4 

 2 

 2 

 6 

 4 

 7 

 2 

 4 

 2 

 1 

 

 

 iO(? 

 4 

 

 

 

 

 

 



Aug. 5 



...do 



...do 



Aug. 8 

 Aug. 11 



...do 



Aug. 9 

 Aug. 14 

 Aug. 11 

 Aug. 14 



All. 

 All. 

 All. 

 All. 

 All. 

 All. 

 All. 

 All. 

 All. 

 All. 



Days. 



8 



7 



1 



10 

 9 



6+ 

 10- 



6+ 

 8 



Aug. 17 



. 18 



19 



20 



21 



22 



23 



24 



25 



26 



27 



28 



29 



30 



31 



Sept. 1 



Total 



Ave rage 

 incubation 





 

 

 

 

 

 3 

 

 1 

 

 



u? 





 

 



10c? 







Days. 





i 





i 























Sept. 2 



All. 



10 



Sept. 2 



All. 



7 















Sept. 5 



All. 



8 









Aug. 19 



All. 



9 













































43 





1 













8 





















1 Dead. 

 General average of 1.34 per day for 32-day period. 



Table VII. — Daily and total production of eggs deposited by one female of H. citri, time 

 of hatching, and length of incubation period, Columbia, S. C, 1916. 



Cage 15-1080. 



Deposited— 



Hatched— 



Incuba- 

 tion 

 period. 



Date. 



Number of eggs. 



Date. 



Number 

 of eggs. 



Day. 



Night. 



Total. 



Sept. 4 



1 





1 

 1 

 6 

 3 

 1 

 5 

 4 

 9 

 3 



12 

 4 

 8 

 5 



10 

 1 

 2 

 5 

 1 

 4 

 1 

 1 

 

 6 

 6 

 2 

 3 

 3 

 

 2 

 2 

 2 

 2 

 2 

 

 1 

 2 



Sept. 14 



All. 

 All. 

 All. 

 All. 

 All. 

 All. 

 All. 

 All. 

 All. 

 All. 



Days. 

 10 



5 



1 

 6 

 3 

 1 

 2 

 4 

 2 

 3 

 3 



Sept. 15 



10 



6 





do 



8 



7 .... 





Sept. 14 



8 



8 





Sept. 16 



8 



9 ... 



3 



Sept. 18 



9 



10 



do 



8 



11 



7 



Sept. 20 



9 



12 



... .do 



9 



13 



9 



4 



Sept. 22 



9 



14 . . 







15 



6 



2 



Sept. 24 



All. 

 All. 

 All. 

 All. 

 All. 

 All. 

 All. 

 All. 

 All. 

 All. 





 All. 

 All. 





 All. 

 All. 



9 



16 



4 i 1 

 4 6 



Sept. 25 



9 



17 



Sept. 26 



9 



18 





1 

 2 

 2 

 1 



t 

 1 







Sept. 27 



g 



19 





Sept. 28 



9 



20 



3 



Sept. 29 



9 



21 . . 



.....do 



8 



22 





Sept. 30 



9 



23 





Oct. 1 



7 



24 





Oct. 2 



7 



25 













26 



coco 

 coco 



Oct. 5 



10 



27 



Oct. 6 



10 



28 .... 





2 

 3 

 3 



Oct. 13 





29 





Oct. 9 



10 



30 .... 





Oct. 10 



10 



Oct 1 









 2 







2 



Oct. 10 



All. 

 All. 

 All. 

 All. 

 All. 



9 



3 



2 



Oct. 11 



9 



4 - - 



2 



Oct. 12 



8 



5 



2 

 2 

 



Oct. 14 



8 



6 





do 



8 



7 







1 



2 



Dead. 







8 



Oct. 15 



All. 

 All. 



8 



9 





Oct. 17 



8 



Nov 3 



d 

















Total 



53 



67 



120 













8.04 

















