THE LESSER CORN STALK-BORER. 



13 



Table I. — Incubation records of eggs of Elasmopalpus lignosellus obtained from one 

 female at Columbia, S. C, 1913. 



Deposited. 



Hatched. 



Incu- 

 bation 

 period. 



Date. 



Number 

 of eggs. 



Date. 



Number 

 of eggs. 



Aug. 28 



Aug. 29... 



Aug. 30 



Aug.31 



Sept.l 



Sept. 2 



Sept. 3 



Sept. 4 



Sept. 5 



Sept. 6 



Sept.7 



Total 



50 



57 



40 



49 



36 



30 



26 



17 



7 



3 



4 



Aug.31 



Sept.l- 



Sept. 2 



Sept. 3 



Sept.4 



Sept.5 



Sept.7 



Sept. 8 



Sept. 9 



Sept. 9 



50 

 57 

 40 

 49 

 36 

 30 

 26 

 17 

 7 

 3 



Days. 

 3 

 3 

 3 

 3 

 3 

 3 

 4 

 4 

 4 

 3 



319 











3.16 











Table II. — Incubation -period of eggs of Elasmopalpus lignosellus deposited during 1914 

 and 1915 at Columbia, S. C. 



Deposited. 



Date. 



Aug. 31, 10 p. m. to 11 p. m 

 Aug. 31, 11 p. m. to 12 m . . . 



Sept. 1, 7 p. m 



Sept. 1, 12m 



Sept. 9, 8p.m 



Sept. 9, 8 p. m. to 10 p. m . . 

 Sept. 2, 9p. m 



Sept.5 



Sept.4..: 



Sept. 10 



Sept. 13 



June 23 



Number 

 of eggs. 



Hatched. 



Date. 



Sept. 5,7p.m... 

 /Sept. 5, 8.30 p. m 

 \Sept. 6, 8a.m... 



Sept. 6, 9 a. m. . . 

 /Sept.5, 8.30 p. m 

 \Sept. 6, 8p.m... 



Sept. 12, 10 p.m. 

 /Sept. 12, 10 p. m. 

 \Sept. 12, 12 m... 



Sept. 6, 9 a. m... 



Sept.9 



Sept. 8 



Sept. 13 



Sept. 18 



June 26 



Number 

 of eggs. 



Egg 

 stage. 



Hours. 

 116-117 

 116. 5-117. 5 

 128. 5-129. 5 

 110 

 92.5 

 116 

 74 

 70-72 

 74-76 



Days. 



