灰茶尺蠖成虫触角及幼虫头部感器超微结构

doi:10.16380/j.kcxb.2019.06.010

昆虫学报 ›› 2019, Vol. 62 ›› Issue (6): 743-755.doi: 10.16380/j.kcxb.2019.06.010

灰茶尺蠖成虫触角及幼虫头部感器超微结构

张方梅¹, 金银利¹, 张丽丽², 尹健¹, 陈俊华¹, 赵琦³, 潘鹏亮^1,*

(1. 信阳农林学院农学院, 河南省豫南农作物有害生物绿色防控院士工作站, 河南信阳 464000; 2. 信阳师范学院生命学院, 河南信阳 464000; 3. 中国农业大学开封试验站, 河南开封 475000)

出版日期:2019-06-20 发布日期:2019-06-04

Ultrastructure of the sensilla on adult antenna and larval head of Ectropis grisescens (Lepidoptera: Geometridae)

ZHANG Fang-Mei¹, JIN Yin-Li1, ZHANG Li-Li², YIN Jian¹, CHEN Jun-Hua¹, ZHAO Qi³, PAN Peng-Liang^1,*#br#

(1. Henan Provincial South Henan Crop Pest Green Prevention and Control Academician Workstation, Agricultural Department, Xinyang Agriculture and Forestry University, Xinyang, Henan 464000, China; 2. College of Life Sciences, Xinyang Normal University, Xinyang, Henan 464000, China; 3. Kaifeng Experimental Station of China Agricultural University, Kaifeng, Henan 475000, China)

Online:2019-06-20 Published:2019-06-04

摘要/Abstract

摘要：

【目的】明确灰茶尺蠖Ectropis grisescens成虫触角及幼虫头部感器的种类、形态、数量和分布，以探讨灰茶尺蠖的行为机制。【方法】利用扫描电镜技术观察灰茶尺蠖雌、雄成虫触角和5龄幼虫头部感器的超微结构。【结果】灰茶尺蠖成虫触角上分布有8种感器，分别是栓锥形感器、耳形感器、毛形感器(Ⅰ-Ⅳ)、Böhm氏鬃毛、腔锥形感器(Ⅰ和Ⅱ)、鳞形感器、锥形感器(Ⅰ和Ⅱ)和刺形感器。其中，栓锥形感器仅分布在雌蛾触角上，耳形感器、毛形感器(STⅠ-Ⅲ)仅分布在雄虫触角上。5龄幼虫触角上着生1个栓锥形感器、1个锥形感器和2个刺形感器；上唇着生有6对刺形感器，内唇着生有3对刺形感器和1对指形感器；上颚基部外侧着生有2个刺形感器；下颚及下颚须着生有5个刺形感器、9个锥形感器和2个栓锥形感器；下唇须着生有1个锥形感器和1个刺形感器；吐丝器前端着生有1对刺形感器。【结论】灰茶尺蠖雌、雄成虫触角感器存在性二型性，且雄虫上感器种类和数量较多，据此推测雄虫感受寄主植物或性信息素的能力较强；幼虫头部感器具有嗅觉和味觉功能，在其判断食物的种类和适应性等生态行为中发挥重要作用。

关键词: 灰茶尺蠖, 触角, 幼虫头部, 形态, 感器, 扫描电镜

Abstract: 【Aim】 This study aims to observe the types, morphology, quantity and distribution of sensilla on adult antenna and larval head of the tea geometrid Ectropis grisescens, so as to explore the behavioral mechanism of E. grisescens. 【Methods】 The ultrastructure of sensilla on adult antenna and larval head of E. grisescens was observed with scanning electron microscopy. 【Results】 The results showed that there are eight kinds of sensilla on the adult antennae, including sensilla styloconica, sensilla auricillica, sensilla trichodae (type Ⅰ-Ⅳ), Böhm bristles, sensilla coeloconica (type Ⅰ and Ⅱ), sensilla squamiformia, sensilla basiconica (type Ⅰ and Ⅱ), and sensilla chaetica. Sensilla styloconica were found only on female adults, while sensilla auricillica and sensilla trichodae (ST Ⅰ-Ⅲ) only on male adults. One sensillum styloconicum, one sensillum basiconicum and two sensilla chaetica were found on the antenna of the 5th instar larvae, six pairs of sensilla chaetica on the labrum, three pairs of sensilla chaetica and one pair of sensilla digitiformia on the epipharynx, two sensilla chaetica on the outer face of mandible, five sensilla chaetica, nine sensilla basiconica and two sensilla styloconica on the mandible and maxillary palp, one sensillum basiconicum and one sensillum chaeticum on the labial palp, and one pair of sensilla chaetica on the front of spinneret. 【Conclusion】 The antennal sensilla show sexual dimorphism in E. grisescens, with more kinds and quantity of sensilla on male antenna. It is so inferred that males have stronger ability to identify host plants and sex pheromones. The sensilla on larval head are associated with gustation and olfaction, and play a vital role in judging the varieties and suitability of foods.

Key words: Ectropis grisescens, antenna, larval head, morphology, sensilla, scanning electron microscopy

张方梅, 金银利, 张丽丽, 尹健, 陈俊华, 赵琦, 潘鹏亮. 灰茶尺蠖成虫触角及幼虫头部感器超微结构[J]. 昆虫学报, 2019, 62(6): 743-755.

ZHANG Fang-Mei, JIN Yin-Li, ZHANG Li-Li, YIN Jian, CHEN Jun-Hua, ZHAO Qi, PAN Peng-Liang . Ultrastructure of the sensilla on adult antenna and larval head of Ectropis grisescens (Lepidoptera: Geometridae)[J]. Acta Entomologica Sinica, 2019, 62(6): 743-755.

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灰茶尺蠖成虫触角及幼虫头部感器超微结构

Ultrastructure of the sensilla on adult antenna and larval head of Ectropis grisescens (Lepidoptera: Geometridae)

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