黑肾卷裙夜蛾生殖生物学研究

Studies on Reproductive Biological Characteristics of Plecoptera oculata Moore(Lepidoptera:Noctuidae)

黑肾卷裙夜蛾(Plecoptera oculata Moore)雌性幼虫生殖系统由1对卵巢、2根侧输卵管、中输卵管、交配囊、附腺等组成。经室内观察,成虫羽化现象全天可见,其雌、雄成虫的羽化性比在1.17～1.26之间波动。黑肾卷裙夜蛾羽化第2日才开始交配,进入暗期2～8h可观察到求偶和交配行为。3日龄雌蛾求偶率最高,而性信息素分泌量也以3日龄居多。雌蛾求偶高峰期发生于进入暗期后的4～6h,交配行为主要发生于进入暗期后的3.5～7.5h,交配持续时间最长约为230min,且较高日龄及较低日龄成虫的交配时间均长于中间日龄。

Reproductive system of male Plecoptera Oculata Moore mainly includes a pair of ovaries, a pair oflateral oviducts, common oviducts, bursa copulatrix and accessory gland, etc.According to the observation, emer-gence phenomenon is visible all of the day, female and male moths are in ratio of 1颐17 to 1.26. Adaults startmating in the next day. Calling and mating behavior can be observed during the 2 to 8 hours of the darkphase. 3-d-old female moths had the highest Calling rate, while 3-d-old moths have the highest secretion ofsex pheromone. Calling is mainly happened during the 3.5 to 7.5 hours of the dark phase. The peak time of fe-male courtship happened during the 4 to 6 hours of the dark phase. Mating duration can be up to 230 minutesand that of higer-age and lower-age of adults is longer than middle-age adults.