6 



BULLETIN" 113, IT. S. DEPARTMENT OP AGRICULTURE. 



is given the record of the emerging moths in cages in the rearing 

 shelter and the emergence of hymenopterous parasites of the larva?. 

 The total number of adults that issued was 383 ; of larval parasites, 14. 



Table I. — Record of emergence of adults and larval 'parasites of the lesser 

 dud-moth in rearing cages at Benton Harbor, Mich., in 1913. 



Date of emergence. 



Number of 

 moths. 



Number of 



larval 

 parasites. 



Date of emergence. 



Number of 

 moths. 



Number of 



larval 

 parasites. 



June 22 . 



5 



10 

 12 

 17 

 21 

 36 

 64 

 47 

 65 

 42 





 

 2 

 4 

 6 

 2 

 

 

 

 



July 2 



13 

 35 

 11 

 

 1 

 

 2 

 

 2 

 







23 



3 







24 



4 







25 









26 



6 







27 









28 



8 







29 



9 







30 



10 







July 1 



11 











In figure 1 this record of the emergence of the adults is graphically 

 shown. 



Pig. 1. — Graphic representation of time and relative emergence of adults of the lesser bud- 

 moth in rearing cages at Benton Harbor, Mich. (Original.) 



During the first few days of emergence the number of males issuing 

 was greatly in excess of the females; toward the last of the period, 

 however, the -reverse was true. Table II shows the proportion of 

 males and females as they issued on successive days. 



Table II.- 



-Relative number of males and females of the lesser bud moth issuing 

 in rearing cages at Benton Harbor, Mich., in 1913. 



Date. 



Number of 

 males. 



Number of 

 females. 



Date. 



Number of 

 males. 



Number of 

 females. 



June 24 



20 

 12 

 10 

 12 

 16 

 11 



4 



3 



4 



14 



17 



29 



June 30 



7 

 3 

 6 



15 



25... 



July 1... 



4 



26 



2 



13 





Total 





28 



97 



103 



29 











