Biology of Hyblea purea (Cramer) reared in laboratory with teak (Tectona grandis, Linn) leaves at coastal Odisha, India

Abstract

Biology of H. puera was studied both at normal laboratory condition and in BOD Incubator with 14:10 photoperiod, 32:18 oC temperature (Day: Night) and 70% RH. The study revealed that there are five larval instars and duration as well as weight of larvae and pupae did not differ much in both the cases of study. Mean larval period was 15.31 days and that of pre pupa, male and female pupa were 1.35, 5.45 and 6.82days respectively, when reared in normal laboratory condition fed with teak leaves. Female and male adults longevity were found as 8.80 and 8.05 days respectively. The pre oviposition, oviposition and post oviposition periods were found as 2.35, 6.50 and 2.18 days respectively. Average number of eggs laid by the female during its lifecycle was found to be 417.66numbers. Weight of a final instar larva was found nearly to 1000 times more than that of neonates. Weight of excreta daily collected and weighed was also found to be more than gain in daily body weight of larvae in final instar stage.