July, 1914.] 



THE APPLE MAGGOT. 



37 



screen wire tops. Part of the cages had wood sides, part screened 

 sides. Spiders or other visitors were carefully removed as found. 

 Dirt was banked around the bottom of each cage to prevent 

 escape of any adults. 



The locations varied from deep shade to partial shade in 9 of 

 the lots. The remaining 4 lots were in the open. All were in 

 the village of Durham. 



The records of emergence of adults from these lots are given in 

 Table 3. Of these the first column gives the total daily emergence 

 from the 9 lots in whole or partial shade; the second column 

 gives the emergence from the 4 lots in the open. The weather 

 notes attached are taken from the records of the local weather 

 bureau. 



Table 3. 



Emergence of Adults in 1911 at Durham. 



