-134- 



Most females completed oviposition in 24 hrs or less, but some 

 deposited several eggs a day for up to five days. The mean number of 

 eggs deposited for all laboratory generations was 28.1, and ranged 

 from 24.9 in the 3rd generation to 36.1 in the 5th. Individuals that 

 took meals of serum laid only about half the usual number of eggs. 

 Eggs were laid singly or in groups of two or three, rarely in clumps 

 of ten or more. If they were laid in clumps, the female was moribund 

 and died during or immediately after oviposition. Eggs were glued in 

 place, presumably with accessory-gland material, to the surface of the 

 moist plaster in the bottom of the oviposition vial. If the plaster 

 was allowed to dry, the females were more prone to glue their eggs to 

 the vertical walls of the containers. Eggs were often deposited 

 carefully in cracks, holes and other protected places that were 

 available. They could not be dislodged by shaking the vial, or washed 

 away with a syringe ful 1 of water. 



Autogeny . No autogenous oviposition was observed in thirty 

 newly emerged 14th generation females paired with newly emerged males. 

 Nor was it observed in selected pairs from previous generations or in 

 wild-caught flies. Post mortem dissections of these females revealed 

 undeveloped ovaries and accessory glands full of granules. 



Age-Specific Life Table 



Table 3-7 is an age-specific life table patterned after one 

 constructed by Morris and Miller (1954). It does not represent any 

 particular colony generation but represents what might be expected in 

 a generation of Uu diabol ica reared under current colony conditions 

 and procedures (27 + 1°C; 70 + 10% RH; 16:8 LD photoperiod). It is 



