16 
egg laying was resumed the second week in February and continued 
with fair regularity throughout that and the following months. 
In three instances (Nos. 
1, 2, and 3) where fe- 
males emerging before 
May 15 began ovipositing 
on July 1, oviposition 
ended September 13, Oc- 
tober 15, and August 28, 
respectively, and was fol- 
lowed later in the fall by 
the death of the adults. 
Ovipositions that began 
very early in the season, 
as during February and 
March, were completed dur- 
ing that year; four such 
records extended from Feb- 
ruary 9 to July 14 (No. 
10), February 27 to Oc- 
tober 15 (No. 12), March 
20 to September 9 (No. 13), 
and March 3 to October 7 
(No. 14). m 
The oviposition period 
is, then, quite long, with 
a minimum of about two 
months and a maximum of 
about 14 months. Females 
emerging during the sum- 
mer months usually lay a 
portion of their eggs the 
same year, cease oviposi- 
tion with the approach of 
winter, and begin oviposit- 
ing once more during Feb- 
ruary and March (in warm 
buildings) or later in or- 
dinary warehouses, and 
continue laying eggs until 
exhaustion. Since such 
adults may continue ovi- 
position until the follow- 
ing October, the resulting 
oviposition periods are the 
longest. Other females, 
emerging during late sum- 
A c mer or fall, may not be- 
Fig. 11. — Four egg clusters of the cadelle : 
Deposited between two flat surfaces ; B, in a 
piece of hat felt ; and D, tucked into a hole in 
a piece of cork 
gin ovipositing that year 
but lay all their eggs dur- 
ing the following calen- 
dar year, beginning during February or March in warm structures ; 
such females have short oviposition records in spite of their long 
