206 Maine Agricultural Experiment Station. 1917. 



TABLE 14. 

 Daily Rate of Oviposition. 



Date 



Fly . 

 No. 1 



Fly 

 No. 2 



Ply 

 No. 3 



June 12 



2 

 8 

 33 

 5 

 4 

 5 

 5 

 2 

 4 

 

 1 

 

 2 

 

 6 

 

 2 

 

 1 

 1 

 

 



1 





 



+ 



82 



4 

 23 

 14 

 8 

 4 

 2 

 5 

 2 

 

 

 

 3 

 

 3 

 

 1 

 



1 



1 





 

 

 

 

 



+ 



71 





14 - - 



* 



15 - - - — - 





16 



5 



17 „ 







18 







19 - 



4 



20 - 



1 



21 



29 



22 



13 



23 - - 







24 . - 







25 



26 -_- — 



3 

 5 



27 - 



0- 



28 - 



7 



29 



30 



3 

 2 



.July 1 



2 



2 



2 



3 - - - - 







4 



1 



5 



10 



1 

 



12 . - 



2 



13 



18 



1 

 



23 __ _ _ . .. 







Aug. 1 



+ 



81 



* First mating. 



+ Died. 



One or two days after the first mating, the females began 

 to oviposit and within a week they reached the maximum egg- 

 laying stage, depositing as high as 23-33 eggs in a day. After 

 this period was reached the number of eggs laid decreased and 

 on many days no eggs were deposited. Frequently the flies 

 formed an tgg cavity but did not deposit an &gg. One specimen 

 formed 31 chambers from July 14—28,. and during these two 

 weeks not _a single &gg was laid. In all probability, the effect 

 of confining the currant fruit flies in jars and also limiting the 

 food material to corn syrup and water, had a marked effect on 

 the egg-laying capacity. 



Longevity of Adults. 



According to tables 8 and 9, the first flies emerged on May 

 21, 1914, and May 22, 1915, in a commercial currant and goose- 



