T/ze Corn-car Worm. 539
Enough went thru the winter, however, to stock the corn
fields, and they began their depredations at the usual time,
tho in very small numbers.
A larva was secured by Mr. E. C. Vaughn of the Division
on June 13 from corn planted for experiment. It was carried
thru to maturity giving the following record:
Molted, June 16; molted, June 21; pupated, June 26;
- adult emerged, July 11.
. They were observed during the season to mature at the
same rate as during the preceding seasons, with the same ` 7
overlapping of broods. They were found to be rather scarce
in Breckinridge, Bullitt, Gallatin, Hardin, Hickman, Hender-
son, Lincoln, Logan, Madison, Mason, McCracken, Meade,
Montgomery and Warren counties.
Eggs were secured at Louisville July 7 and hatched July 9. -
A larva of this brood, reared to maturity on green tomatoes,
pupated during the night of July 27 exposed on the surface
of sand in the Stenderi dish employed for rearing, and the
  adult emerged in the night of August 7.
The latest brood obseiived was represented by an individual
secured as a larva September 17. It pupated October 7 and
emerged November 1, 1910. Another individual secured on the
same date and pupating`¤September 17, wintered as a pupa,
but emerged March 30, 1911, having been kept in a Stender
dish in the Laboratory. `
Taking the average period of a brood as about 32 days,
from egg-laying to egg—laying, and beginning with the brood
. represented by the example secured June 13 and emerging
July 11, ending with that reared in September and October,
it appears that three broods developed as follows:
Brood 1: Egg, about June 10; pupa, June 26; adult, July 11_
Brood 2: Egg, July 13; pupa, July 28; adult Aug. 12.
Brood 3: Egg, Aug. 14; pupa, Aug. 29; adult, Sep. 12.
. Brood 4; Egg. Nov. 3. Brood imperfect owing to frost. ‘
In 1911 the adult corn-ear moth began to appear in the
field in June and July. Eggs were collected from growing
corn June 16 and recently hatched larvze, June 18. To