刺槐叶瘿蚊成虫行为学特征及性诱效果的研究
Adult behaviors and sex attraction of Obolodiplosis rohiniae
吉志新，温晓蕾，路常宽**，高素红，赵春明，余金咏，赵景忠
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作者单位： 河北科技师范学院生命科技学院农林有害生物监测技术研究所秦皇岛066600
中文关键词：刺槐叶瘿蚊, 羽化, 交尾, 性信息素
英文关键词：Obolodiplosis rohiniae, emergence, mating, sex pheromone
中文摘要： 本文在室内条件下研究了刺槐叶瘿蚊Obolodiplosis rohiniae (Haldemann)成虫羽化、交尾、产卵行为的时间动态节律以及雌蚊性诱效果。结果表明:雌虫5:00—6:00为羽化高峰期，雄虫1:00—2:00为羽化高峰期，雌虫羽化高峰期期迟于雄虫4 h左右。雌蚊羽化后20 min左右即外伸产卵器吸引雄蚊交配。成虫集中在1日龄时交尾，在2日龄和3日龄时未见其交尾，交尾高峰期在5:00—6:00和7:00—8:00 。产卵高峰在20:00—22:00。“Y”型嗅觉仪测定表明，雌蚊溶剂浸提和空气收集法获得的提取物对雄蚊均有引诱作用，且二者引诱效果无显著性差异，雄蚊对雄蚊活体和雄蚊提取物无选择性，刺槐叶瘿蚊由雌蚊释放性信息素吸引雄蚊交配，说明2种方法均从刺槐叶瘿蚊雌蚊提取到了性信息素。单头处女雌蚊在距雄蚊80~300 cm诱集距离内，都能诱集到一定数量的雄蚊。已交配雌蚊具有诱集能力。该蚊的羽化、交尾及性信息素产生与释放均存在节律上的一致性。
英文摘要： Observations on the periodicity of adult eclosion, mating, oviposition and sexual attraction of the black locust gall midge Obolodiplosis rohiniae (Haldemann) were conducted. The results indicate that peak female eclosion occurred between 05:00-06:00 and peak male eclosion occurred between 01:00-02:00 Peak male eclosion was earlier about 4 hours than that of female adults. Twenty minutes after emergence, female adults extended their ovipositors and attracted males for mating. Mating occurred mostly in 1dayold moths and was not observed in 2 to 3dayold moths. The peak of mating occurred between 05:00 and 06:00, and between 07:00 and 08:00 The peak of oviposition occurred between 20:00 and 22:00 An experiment using a“ Y”tube olfactometer indicated that both airborne chemicals collected from virgin females and those extracted by solvents can attract males; there was no difference in the attractiveness of the chemicals obtained by these two methods. Neither virgin males nor extracts from virgin males attracted females. The two alternative methods for collecting sex pheromones from virgin females are described. A trap baited with a virgin female attracted and captured males from as far as 80 to 300 cm under laboratory conditions. Mated females retained some attractiveness to males. The emergence, mating and release of sex pheromone of the gall midge exhibited diel periodicity