首页 | 本学科首页   官方微博 | 高级检索  
   检索      

长蝎蛉幼期形态附生物学记述
引用本文:姜碌,花保祯.长蝎蛉幼期形态附生物学记述[J].昆虫学报,2016(9):1004-1012.
作者姓名:姜碌  花保祯
作者单位:西北农林科技大学植物保护学院,植保资源与病虫害治理教育部重点实验室,陕西杨凌712100
基金项目:国家自然科学基金项目(31172125;31372186),教育部高等学校博士点基金(20130204130001)
摘    要:【目的】蝎蛉科(Panorpidae)是长翅目(Mecoptera)最大的科,是重要的生态指示昆虫。然而,由于对环境条件要求苛刻,饲养困难,其幼期研究很不充分。【方法】本研究通过人工饲养成虫获得了长蝎蛉Panorpa macrostyla Hua的卵、幼虫和蛹等全部虫态,运用光学显微镜和扫描电子显微技术观察了其超微形态,并简要记载了其生物学特性。【结果】长蝎蛉每年发生1代,成虫发生于6月末至8月初。卵椭球形,卵壳表面覆盖一层隆起的网状结构。幼虫蠋型,具3对分4节的胸足和8对不分节的腹足;头壳高度骨化,具1对由26个小眼组成的复眼和1对3节的触角,口器咀嚼式;腹部第1-9节背面具有成对的背毛突,第10节仅有1根背毛突,腹部末端具有一个可伸缩的吸盘;呼吸系统为周气门式,具1对前胸气门和8对腹气门。幼虫共4个龄期,以预蛹期在土室内越冬。蛹为强颚离蛹,外形接近成虫,雄蛹腹部末端膨大。【结论】基于幼虫形态特征,长蝎蛉明显区别于新蝎蛉属Neopanorpa、华蝎蛉属Sinopanorpa、双角蝎蛉属Dicerapanorpa以及单角蝎蛉属Cerapanorpa幼虫。然而,长蝎蛉幼虫头部刚毛L2和SO2,腹部末节刚毛D2,SD1和SD2端部均膨大呈棒状,与蝎蛉属Panorpa其他种类区别明显,表明长蝎蛉的属级地位需要进一步研究。

关 键 词:长翅目  蝎蛉科  长蝎蛉  生活史  形态    幼虫  

Morphology of the immature stages of Panorpa macrostyla Hua (Mecoptera: Panorpidae) with notes on its biology
Abstract:Aim] Panorpidae,the largest family of Mecoptera,are important ecological indicators for environments.The immature stages of Panorpidae,however,are insufficiently studied so far mainly due to their strict ecological requirements and rearing difficulties.Methods] The immature stages (including egg,larva,and pupa) of the scorpionfly Panorpa macrostyla Hua were studied biologically and morphologically using light and scanning electron microscopy.Results] P.macrostyla is a univoltine insect,completing one generation per year.The adults appear from late June to early August.The egg is ellipsoid,with a raised reticulation on the chorion.The larva is eruciform,with three pairs of foursegmented thoracic legs and eight pairs of unsegmented prolegs.The larval head is strongly sclerotized,bearing a pair of compound eyes each comprising 26 ommatidia,a pair of 3-segmented antennae,and the mandibulate mouthparts.The larval trunk is cylindrical,bearing nine pairs of dorsal processes on the first nine abdominal segments and a single dorsal process on the tenth abdominal segment.A protrusible sucker is present on the terminal abdominal segment.The larval respiratory system is of the peripneustic type,having a pair of prothoracic and eight pairs of abdominal spiracles.The larval stage consists of four instars,and overwinters as prepupal stage within a pupal cavity in the soil.The pupa is exarate and decticous,morphologically similar to the adult.The male pupa has enlarged genital bulb on its caudal end.Conclusion] The larvae of P.macrostyla are morphologically different from those of Neopanorpa,Sinopanorpa,Dicerapanorpa,and Cerapanorpa.However,P.macrostyla larvae differ from its congeners by the apical-expanded setae of L2 and SO2 on the head capsule,and D2,SD1,SD2 on the caudal segment,implying that the generic status of P.macrostyla needs further research.
Keywords:Mecoptera  Panorpidae  Panorpa macrostyla  life history  morphology  egg  larva  pupa
本文献已被 CNKI 万方数据 等数据库收录!
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号