181 
its pupal skin. It was forty days depositing its eggs. The two 
remaining parent males were still alive when the experiment was 
closed. 
No. 5 contained a single female and four males. The first eggs 
were observed July 25, and the first young bugs appeared August 
15, a period of about twenty days from the time the eggs were 
deposited. The insects were seen pairing each day the experi¬ 
ment was observed, usually all the males being clustered about the fe¬ 
male. The eggs were left in the cage, where they hatched, the 
insects being removed October 8. Ninety-eight bugs in all stages 
of development were taken out at this time. The parent female 
died September 4, having lived just forty-eight days from the 
time of confinement. She was thirty-eight days depositing her 
eggs. Three of the old males were alive when the cage was set 
aside, and one was found dead on the ground. 
No. 6 was prepared like No. 5, and contained one female and 
four males. The first eggs were observed July 26, and the first 
young bugs appeared August 16, or about twenty days from the 
time the eggs were deposited. The insects were seen pairing each 
day observations were made, the males usually clustering about 
the female. Thirty-eight; eggs were removed from the grass and 
thirty-five from the ground. Forty-three young were also removed, 
making the total number of eggs laid, one hundred and sixteen. 
The female died September 6, having lived a period of fifty 
days in confinement. The egg-laying period was thirty-eight 
days. One male died Ooctober 1, having lived seventy-five days 
from the time of the last molt. Another male died October 3, 
being seventy-seven days old as an adult, and two others died 
October 6, having lived eighty days. 
The following table gives the foregoing facts in a condensed 
form: 
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