佩妃延腹榕小蜂雌蜂触角感器的扫描电镜观察
Scanning Electron Microscopy Observation on Antenna Sensilla of Female Philotrypesis dunia (Hymenoptera: Agaonidae)

中文摘要：佩妃延腹榕小蜂是一种与鸡嗉子传粉榕小蜂同步寄生于接收期榕果的非传粉专性寄生蜂。为探索佩妃延腹榕小蜂寄主定位机制,应用扫描电镜观察了其雌蜂触角感器的类型、分布和超微形态。结果显示:佩妃延腹榕小蜂雌蜂触角呈膝状,长775.50 μm±38.39 μm,由柄节、梗节和11个鞭小节组成的鞭节构成。触角上共发现5种感器类型,分别为毛形感器、刺形感器(Ⅰ型和Ⅱ型)、多孔板形感器、锥形感器、栓锥型乳突状感器。其中,刺形感器Ⅰ和多孔板形感器是其主要感器,前者集中分布于鞭节的第4~第8鞭小节,后者分布于第4~第11鞭小节。结合触角感器的形态、分布和佩妃延腹榕小蜂的产卵行为,对各触角感器的功能进行了探讨。
英文摘要： Philotrypesis dunia (Hymenoptera: Agaonidae) is a galler parasite of Ficus semicordata at receptive stage allowing its associated fig-pollinators, Ceratosolen gravelyi, to enter the lumen for pollinations and laying eggs. To provide background information for the ongoing research on P. dunia host location, the types, distribution and ultramorphology of antennal sensilla of female adults P. dunia were examined using scanning electron microscopy (SEM). Antennae of female P. dunia is geniculate in shape, ca. 775.50 μm±38.39 μm in length, and consisting of scape, pedicel and 11 flagellomeres. Five morphological sensillar types were found in female wasps, including sensilla trichoid, two types of chaetica sensilla (type Ⅰ and type Ⅱ), multiporous placoid sensilla, basiconica sensilla and basiconic capitate peg sensilla. According to their distribution and abundance, the chaetica sensilla type Ⅰ and multiporous placoid sensilla were the main sensillar types in the antennae of female wasps. Chaetica sensilla type Ⅰ mainly distributed on the 4 th-8 th flagellomere, however, multiporous placoid sensilla were the most conspicuous plate-like chracteristics and only occurred on the 4 th-11 th flagellomere. Their possible roles were discussed on basis of sensillar morphology, distribution and oviposition behaviors of P. dunia. 2015,34(2): 216-222 收稿日期：2014-8-18 DOI：10.3969/j.issn.1000-7083.2015.02.010 分类号：Q964 基金项目：国家自然科学基金资助项目(No.31200292,No.31100279);云南省重点学科森林保护学项目(XKZ200905) 作者简介：赵健(1990—),男,硕士研究生,研究方向:森林保护昆虫学,E-mail:540648169@qq.com *通讯作者：李宗波,E-mail:lizb@outlook.com 参考文献： 李宗波, 杨培, 彭艳琼, 等. 2009. 苹果榕传粉小蜂雌性触角感器及其生态学意义[J]. 昆虫知识, 46(6): 941-950. 李宗波, 杨培, 彭艳琼, 等. 2012. 木瓜榕传粉榕小蜂雌蜂触角感器的分布和超微形态[J]. 昆虫学报, 55(11): 1272-1281. 李宗波. 2010. 榕树隐头果挥发性化合物在传粉小蜂寄主选择过程中的作用[D]. 北京: 中国科学院. 甄文全, 黄大卫, 杨大荣, 等. 2004a. 佩妃延腹榕小蜂的产卵行为[J]. 昆虫学报, 47(3): 365-371. 甄文全, 黄大卫, 杨大荣, 等. 2004b. 鸡嗉果榕榕小蜂产卵时序与种群数量分析[J]. 昆虫学报, 47(6): 787-792. Aldworth ZN, Stopfer M. 2012. Olfactory coding: tagging and tuning odor-activated synapses for memory[J]. Curr Biol, 22(7): R227-R229. Amornsak W, Cribb B, Gordh G. 1998. External morphology of antennal sensilla of Trichogramma australicum Girault (Hymenoptera: Trichogrammatidae)[J]. Int J Insect Morphol Embryol, 27(2): 67-82. Angioy AM, Desogus A,