BULLETIN 911, U. S. DEPARTMENT OF AGRICULTURE. 



Table III. — Time of emergence of moths of the first brood of the grape-beiry moth at 



Sandusky, Ohio, in 1916. 



Date of emergence. 



Number 

 of moths. 



Date of emergence. 



Number 

 of moths. 



July 11 



1 

 2 

 1 

 1 

 2 

 2 

 1 

 1 

 1 

 3 

 11 

 10 

 7 





78 



12 



8 



70 



13 , 



9 



25 



14 



10 



37 



15 



11. 



42 



16 



12 



20 



17 



13 



25 



18 



14 



28 



19 



15 



37 



20 



16 



18 



21 



.17 



111 



22 



18 



67 



23 



19 ... . 



56 



24 



13 



20 



22 



25 10 



21 



18 



26 43 



22 



24 



27 | 116 



23 



35 



28 168 



24 



13 



29 1 164 



25 



7 



30 j 119 



26 



5 



31 1 111 



27 



6 



Aug. 1 78 



28 



4 



2 118 



29 



1 



3 194 



30 



2 



4 109 



5 190 



6 112 



31 



Total 



1 



2,340 



z/o 



Fig. 



/O 



1. — Diagram showing time of emergence of first-brood moths of the grape-berry moth (.Polychmsis 

 viteana) at Sandusky, Ohio, 1916. 



