The Corwear Worm. 525
‘ tion, and on the 27th an adult emerged. Adults continued to
· come out until August 10. Scattered eggs were found on
corn silks in the experiment plots July 31 and were present
during the early part of August. Five adults confined in cages
with corn, August 4 and 5, had on the Sth produced numer-
ous pale olive-green eggs attached to the wire gauze forming
the walls of the cages. They were laid on the night of the
_ _ 7th. On the 9th adults confined in Stender dishes in the
Laboratory had laid during the previous night numerous eggs
` on bits of corn blades. Eggs of this batch were noted as "
hatching August 15, the young very active, creeping by a T
looping motion and suspending themselves by a thread when
disturbed. The worms of the brood were ready to pupate
August 21 to August 27. On the 28th some of them had gone
into the ground for pupation and at the same date a few eggs
were found on corn in the field, showing that some moths `
were abroad. The bulk of the brood, however, was ready to
ipupate at this time, and the moths then laying in the field
were doubtless the result of the overlapping in the life—his-
  tories of different individuals of broods, already noted. Indi-
viduals hatched August 15 and going into the soil August 28,
emerged as adults September 11. One came forth Sep-
tember 17, and from this time until frost, eggs were to be
~ found on corn in the field. The young were noted as being
numerous again from September 28 to October 5. On Octo-
ber 8 to 12th larvae were nearly ready to pupate and `
continued until about November 6 in late plantings of corn,
tho by November 7 most of the larvae were noted as
having pupated. An adult emerged November 8 from a
pupa found in September. Another adult came forth
November 19 from a larva that pupated October 19. A
larva was kept in the Laboratory until December 3 when it
was ready to pupate, but died before this condition was
assumed.
i The following records of individuals kept in the lnsectary '
are additional to the observations recorded above. One hun-
dred and sixty-tive moths were secured by rearing, out of
two hundred and eighty—three larvae kept in rearing cages.