Uji Fly, Exorista bombycis (Louis) (Diptera:Tachinidae) Life-table on Bivoltine (NB4D2) Silkworm Race

The life-table of uji fly, Exorista bombycis L. was constructed through 16 generation using fourth stage of bivoltine (NB4D2) silkworm race as a host for depositing eggs with the different biotic characters like, mortality at every stage of its life cycle (eggs, maggots, post-parasitic maggots, puparia and adults) in the rearing room. Maximum percentage of mortality at puparia, maggots, eggs, adults and post-parasitic maggots stages was 16.97, 11.01, 10.58, 7.82 and 6.52 per cent, respectively. Similarly, the survivability rate varied at different stages, being minimum at pupal stage (83.03%) compared to maggots (88.99%), eggs (89.42%), adults (92.18%) and post-parasitic maggot stages (93.48%). The number of individuals dying within the age and mortality factors are responsible for every stage of its life cycle have been discussed.