The Currant Fruit Fly. 



TABLE 9. 



Dates of Emergence of Adults in IQ15. 



199 



Date 







Total 



Maximum 



Minimum 







d 



9 





temperature 



temperature 



Precipitation 



May 22 



1 



1 



2 



68 



47 



.28 



23 







5 



5 



76 



56 





24 



4 



6 



10 



77 



49 



— 



25 



34 



31 



65 



77 



43 





26 



* 



* 



* 



76 



52 



.93 



27 



27 



29 



56 



61 



25 





28 



14 



5 



19 



57 



35 





29 



10 



14 



24 



56 



36 





30 



43 



43 



86 



71 



32 





31 



79 



66 



145 



76 



49 





June 1 



.44 



46 



90 



83 



42 





2 



21 



37 



58 



84 



41 





3 



25 



13 



38 



70 



31 





4 



12 



12 



24 



72 



37 





5 



43 



28 



71 



82 



42 





6 



14 



12 



26 



80 



46 





7 



16 



11 



27 



81 



60 







8 



19 



3 



22 



77 



57 



.04 



9 



5 



6 



11 



74 



49 





10 . 



1 



2 



3 



75 



48 



.87 



11 



1 



2 



3 



73 



44 



.10 



12 



4 



1 



5 



72 



51 



— 



13 



1 



2 



3 



73 



44 





14 



2 



1 



3 



77 



50 





15 















81 



51 



.16 



16 



1 







1 



77 



49 





17 















79 



52 



.30 



18 





 421 . 



1 



377 



1 



798 



81 



56 



.03 



No record was taken due to heavy rains. 



Indicates a trace of rain. 



A comparison of the data in tables 8 and 9, shows that the 

 flies began to issue on May 21, 1914, and May 22, 191,5. reached 

 the maximum period of emergence on A4ay 28-June 1, 1914. and 

 May 30-June 1, 1915, and the emergence gradually diminished 

 from June 2-11, 1914, and June 2-18, 1915. The period of emer- 

 gence covered about three weeks in 1914, and four weeks in 1915. 



Records were taken to determine whether the kind of soil 

 effects the dates of the first and last emergence of the adults. 

 Table 10, shows the details : 



