广州小斑螟幼虫、蛹和成虫的雌雄形态鉴别  

A method for identifying the sex of larva,pupa and adult of Oligochroa cantonella Caradja

作　　者：文娟 常明山[2] 李德伟[2] 邓艳[2] 赵程劼[2] 吴耀军[2] 

机构地区：[1]广西壮族自治区林业勘测设计院,广西南宁530028 [2]广西林业科学研究院,广西优良用材林资源培育重点实验室,广西南宁530002

出　　处：《中国森林病虫》2016年第2期17-20,共4页Forest Pest and Disease

基　　金：红树林主要害虫性信息素基础研究与应用(桂林科字[2014]第34号);北部湾红树林主要害虫控制技术推广示范([2014]TG13号);北部湾红树林主要害虫本土天敌利用技术研究与示范(桂科攻1355007-5)

摘　　要：描述了红树林植物白骨壤Avicennia marina重要害虫广州小斑螟Oligochroa cantonella Caradja幼虫、蛹和成虫的雌雄形态鉴别方法。结果表明:第5腹节背面有气泡突的幼虫为雄幼虫;无气泡突的为雌幼虫。蛹为被蛹,雌蛹腹部末端分节较明显,第8腹节腹面有一纵裂,两侧边缘平坦,无突起;雄蛹腹部末端分节不明显,第8腹节无裂缝,第9腹节中央有一短纵裂缝,两侧各有一半球形瘤状突起。雌成虫腹部末端呈圆筒状,较粗壮,可见产卵瓣,个体较雄成虫大;雄性成虫腹部末端呈短钳状,较瘦小。A method for identifying the sex of larva,pupa and adult of Oligochroa cantonella Caradja was described. The results showed the 5th abdominal segment of the male larva had a pair of bubble processes,but the female didn＇ t have. The pupa was obtect pupa. In the female pupa,the segments of the end abdomen were visible,and the 8th abdominal segment was bisected with a slit,the two sides of the slit were flat without protuberance. In the male pupa,the segments of the end abdomen were not visible,the 8th abdominal segment was not bisected with a slit,the middle of the 9th abdominal segment was bisected with a short slit,and there was one hemispherical protuberance on each side of the slit. The female adults were larger than the males. The end abdominal segments of the female adult were corpulent,cylinder-shaped with visible ovipositor. The male adult＇ s end abdominal segments were slender with a short forcipate end.

关 键 词：广州小斑螟 幼虫 蛹 成虫 雌雄鉴别 

分 类 号：S763.42[农业科学—森林保护学]