64 Trans. Acad. Sct. of St. Lous. 
TABLE 37. 
Period of Incubation. Eggs of 8. cecropia. South St. Louis, 1913. 
2 | Day’s Deposit | Date of 
1st Day’s 
Sea pepe bes é|7|8 Deposit 
A 16 15 14 13 14 14 14 14 5-10 
B 15 14 14 14 5-12 
, SRN ENE: 14 14 14 14 5-13 
D 15 14 14 a3 13 13 5-15 
E 15 14 14 14 as 5-15 
i peepee rg 14 14 14 14 5-15 
14 13 13 18 5-16 
H 15 14 18 +5 5-16 
Los 14 is 13 pS se aye 5 5-17 
Me rae 14 i 7 12 12 a me me 5-17 
TABLE 38. 
Period of Incubation. Eggs of 8. cecropia. New York, 19138. 
fo) Day’s Deposit Date of 
N ist Day’s 
- 1 | 2 | 8} 4 | Deposit 
Be eh Cees ea 14 15 14 5-15 
Beveeiwss 43 12 a Ee 5-18 
TELEA POLYPHEMUS., 
Owing to the difficulty in getting Polyphemus to mate 
in confinement, we have records on only 10 individuals 
of this species from the different localities. (See Tables 
39, 40, 41.) 
In this species too we see that the period of incubation 
is influenced by the date of oviposition. For instance, 
in Table 39 we have the eggs of 5 females laid in June; 
these have a period of 6 to 8 days. In this same table 
we have another lot of eggs deposited on May 20 whick 
required 11 days. In Table 40 are the eggs from two 
insects, one’s oviposition commencing on May 11 and 
the other on June 10; the earlier lot required 11 to 13 
