NUTRITIONAL RESERVES OF AUTOGENOUS AND ANAUTOGENOUS SELECTED STRAINS OF AEDES-ALBOPICTUS (DIPTERA, CULICIDAE)

Autogeny in Aedes albopictus (Skuse) females was increased from 5% in wild-type parental stock to 84% by selection through 20 generations an d was decreased to 0% by selection through nine generations. Concomita ntly, the mean number of eggs per female that matured autogenously inc reased from 6.4 to 18.3 in sugar-fed mosquitoes that developed eggs. A lthough the duration of the larval period of the two strains was not d ifferent, autogenous females emerged with greater amounts of metaboliz able protein and lipid and total available energy reserves than did an autogenous females, but with lesser amounts of glycogen. Dry weights d id not differ significantly. The difference in the energy reserves bet ween strains was slightly more than the total energy invested in 20 au togenous eggs. Autogenous females survived 1.3 d longer than did anaut ogenous females when starved from emergence.