42 DECIDUOUS FRUIT INSECTS AND INSECTICIDES. 
or no males appear, the females will continue to await them for 
several days, during the time from about 10 a. m. to 3 p. m. 
Oviposition commences soon after copulation and continues through- 
out the hfe of the female. On warm sunny days it may begin as’ 
early as 8 o'clock in the morning, in the South, and continue at inter- 
vals through the day until as late as 4.30 p.m. On very windy or 
stormy days the female is inactive, hiding in the grass in the orchard 
for shelter, and on cloudy days she is less active than on clear ones. 
During the period of oviposition she flies very rapidly, and is hardly 
discernible until she alights on the trunk of a tree; she then moves 
slowly over the bark and feels with the end of the yellowish ovi- 
positor for a rough place or crevice, where she usually places an egg. 
Ovipositing females are exceedingly difficult to follow with the eye, 
and in this respect they differ markedly from the comparatively 
sluggish and more conspicuous females of the peach borer. Further, 
they are apparently more careful in placing eggs, always selecting 
a place which will make it easier for the larva to get into the bark, 
though enough observations have not been made on this to justify a 
positive statement. ; 
In flight both sexes resemble wasps and make a distinct buzzing 
sound. The males are seldom seen. The moths have never been ob- 
served to feed, except on moisture, and in confinement show no 
marked attraction to sweetened water. Meager observations made 
on adults kept in confinement indicate that they probably do not live 
longer than a week. 
SEASONAL HISTORY. 
GENERATIONS. 
The number of generations occurring with an insect of this kind 
> 
is especially difficult to determine because of the nature of its habits. 
In Georgia some attempt has been made by this Bureau during th 
past two years to obtain accurate knowledge on this point by keeping 
during the entire breeding season. So far, however, the data obtained 
do not warrant a definite or positive statement concerning the actual 
hatched and nearly full-grown specimens are present, the former 
indicating late fall, the latter, late summer, oviposition. As soon as ~ 
spring begins to open the old larve commence to pupate, emerging a | 
month later as adults; the young larve feed and grow rapidly, pupat- ~ 
ing in their turn, and producing a continuous supply of moths. ‘The © 
moths from the hibernating larve produce another mixed generation | 
