1962] 
Roth and Stay — Cockroaches 
175 
Fig. 6. Effect of mating, starvation, and combined starvation and mating 
on oocyte development in N auphoeta cinerea. The points are mean values; 
fed virgins, N = 707; starved virgins, N = 133; fed mated, N — 58; starved 
mated, N — 21. Females were mated when 4 to 6 days old. Vertical bars are 
one standard error (only positive halves of standard errors are indicated 
wherever errors overlapped) ; no vertical bars indicate standard errors of 
±0.02 mm. or less. 
