Abstract Rice moth (Corcyra cephalonica (Stainton) larvae were reared on crushed brown rice in a growth chamber at 30±1℃, 70±5% RH, with a 12L：12D photoperiod (The light was turned on at 06：00 and was off at 18：00). Adults emerged from 12：00 to 22：00 each day. Male moths emerged 2-3 h earlier than the females. The emergence peak took place at 17：00-19：00 and 18：00-20：00 for males and females, respectively. Based on χ2 test of goodness of fit, the ratio of females to males was 1：1 in the population. of females, 83.3% produced offspring whose ratio of females to males was equal to 1; the rest produced offspring with a ratio greater or less than 1. The mean longevity of mated females and males was 8.1 and 12.9 days respectively; of those unmated it was 10.2 and 16.4 days, respectively.
摘要 外米綴蛾(Coryra cephalonica (Stainton)) 幼蟲以碎粒糙米飼養於30 ±1℃，70 ±5%RH，每日06：00開燈，18：00關燈(12L：12D)之生長箱中，觀察成蟲羽化及壽命。結果得知雌、雄蛾每日之羽化時刻集中於12：00～22：00，雄蛾羽化時刻較雌蛾早2～3小時。雄蛾羽化高峰在17：00～19：00，雌蛾在18：00～20：00。羽化之雌、雄蛾單一配對飼養時，83.3%雌蛾生產之子代個體中，雌、雄比依χ2 測驗附合1：1；其餘16.7%之雌蛾生產之子代個體中。雌、雄比大於1或小於1。但在同一族群中，雌、雄蛾個體比例為1：1。己交尾雌、雄蛾的壽命分別為8.1和12.9日，均較未交尾雌、雄者(10.2和16.4日)為短。
| Key words: Corcyra cephalonica, emergence, longevity. | | 關鍵詞: 外米綴蛾、羽化、壽命 |
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