The First Report of Life Cycle for Ornithoptera croesus (Wallace, 1859) Endemic Butterfly Found Bacan Islands
This study reports for the first time the survival and length of time the perfect metamorphosis of Ornithoptera croesus endemic butterflies from Bacan Island. The purpose of this study is to describe the metamorphosis phase of O. croesus for the length of time needed for metamorphosis and O. croesus survival ability in Mussaenda (Mussaenda pubescens) and Asoka (Saraca asoca) flowers as a database of endemic butterfly conservation policy in Bacan Island. This research was conducted from July to October 2020. The eggs were collected from mussaenda and asoka plants in the Mount Sibela nature reserve on Bacan Island, and then reared in captivity with a cage size of 50x50x50 cm. The results showed that the survival percentage of O. croesus was in the low category with a value of 55%. Furthermore, it is found out that the time required for the metamorphosis of O. croesus is 93-100 days, including the longer category compared to other Papilio. The results of this study recommend that O. croesus needs attention in the conservation of local resources, considering the low life span and long metamorphosis are feared to be extinct.
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