8 BULLETIN 554, U. S. DEPARTMENT OF AGRICULTURE. 
= 
Whitesbog, N. J., records of late-flyimg moths have been kept for 
three years, and it is not unusual to find them flying until mid-August. 
The heavily shaded places, from which the flowage is slow in drain- 
ing. probably retard the development of the immature forms in the 
cocoons and thus give rise to later issuing moths. These are the con- 
ditions which have led to the erroneous conclusion that more than 
one brood occurs in the course of a season. 
The moths, which are strong fliers, are seldom noted in their con- 
cealment among the vines, but when disturbed they fly several rods 
or more, finally seeking shelter in the vines again and often running 
down to the trash for security. When resting, the moths fold the 
wings tightly around the body and are inconspicuous; at night, with 
the aid of a lantern, they may be seen in this position clinging to 
vines or the stems of tall grasses. 
Proportion of sexes——In the early summer the males and females 
appear to be about equal in number; for example, on June 11, 24 
moths were collected, of which 12 were males and 12 were females. 
In late summer, however, the males are far in excess of the females, 
as shown by the following collections: Thirteen moths taken July 
27 consisted of 11 males and 2 females, while of 23 moths collected 
August 10 only 5 were females. 
EGG STAGE. 
In rearing cages the moths laid eggs from various positions, not 
necessarily resting on the bottom of the cage, but dropping the eggs 
from whatever position they happened to have assumed. No eggs 
were found attached to the cranberry vines or sides of the cage, but 
all were recovered on the cage floor. It is assumed, then, that on 
the bogs the eggs are laid either when the moths have crawled down 
to the trash or when they are clinging to vines or grasses. The eggs 
are so minute that there is little possibility of finding any under 
natural bog conditions. 
The moth has been known to be a prolific egg layer. Felt (6) 
records one female that laid 700 eggs, 300 of them being deposited 
on the first day. In the course of observations at Whitesbog, N. J., 
a female was noted which laid 50 eggs in less than two hours. 
The data in Table II give the number of eggs per female secured 
at Whitesbog, N. J., under insectary conditions. 
A male and female (reared) were placed in each cage and fed 
sugar sirup. 
