ee | Ne 
moths, not a single parasite being recovered. The data obtained clearly 
indicate that eggs deposited when the host larva is in an advanced stage 
and about ready to pupate are too late to enable the maggot to develop 
successfully. The egg hatches and the maggot readily penetrates the skin 
of the host and forms its integumental funnel. It does not, however, 
pierce the newly formed 'pupal skin', and is consequently cast off with 
the exuvium when the larva pupates." 
CEREAL AND FORAGE INSECTS 
Savannah, Ga., reports that " A serious infestation of Elasmopalpus lig— 
nosellus Zell. in young string beans was observed this month (July) and 
moths and parasites were reared for reference. When the plants have 
from two to five leaves the larva, which, when full grown are about three— 
fourths inch long, and green—blue in color, enter at a point even with 
the surface of the soil, or a little below the surface. They burrow up 
and down the stem, hollowing it and causing the plants to die. When one 
plant has died and dried so as to be unsuitable as food, the larvae move 
to a new plant. Apparently they feed only within the plant stems, making 
an effective control rather difficult." 
Ege-deposition period for European corn borer in Lake Erie Sec— 
tion for 1929-1933.-—"The first corn borer egg mass was found on June 22," 
reports L. B. Scott, of the European corn borer laboratory, Toledo, Ohio, 
"but, as it hatched on the 23rd, it is evident that it was deposited on 
the 18th or 19th. The peak of egg deposition occurred on or about July 
1, which is about the average date for this area. Egg observations ended 
on July 22, when the number of masses found was so small as to indicate 
that practically all adults had died. The end of the oviposition period in 
this section normally occurs about July 24. The following table indicates 
the oviposition data for the years 1929 to 1933, inclusive, in northwestern 
Ohio: 
First egg mass Peak of oviposition Last egg mass 
1929 6-20 7~8 7-29 
1930 6-16 Tadd 7-25 
1931 6-19 opts Jace 
1932 6-16 6-3 7-28 
1933 6-19 fal Fae 
Life cycle of red harvester ant in western Texas.-~-According to 
E. V. Walter, San Antonio, "Females of Pogonomyrmex barbatus F. Smith 
were obtained fron swarms emerging June 14 and June 19. They were placed 
in observation cages for notes on the life cycle. These notes show that 
11 to 12 days are required for the egg period, 9 to 10 days for the lar-— 
val period, and 9 to 12 days for the pupal period, a total of from 30 to 
Se days from the time the egg is laid until the young adults emerge. It 
is also shown that the female deposits from 40 to 70 eggs in the first 
group and that from 6 to 12 eggs may be found to each young hatching 
therefrom, so that about 6 or 7 young may be reared from this first group 
ae i aL. ee — oes —- sa 
——s ee ee 
