快速区分沟眶象雌雄成虫的方法

陈冲; 于倩倩; 刘振凯; 孙耀武; 曹川健; 宝山; 温俊宝

doi:10.11833/j.issn.2095-0756.2013.02.025

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快速区分沟眶象雌雄成虫的方法

陈冲 , 于倩倩 , 刘振凯 , 孙耀武 , 曹川健 , 宝山 , 温俊宝

文章导航 > 浙江农林大学学报 > 2013 > 30(2): 309-312

陈冲, 于倩倩, 刘振凯, 孙耀武, 曹川健, 宝山, 温俊宝. 快速区分沟眶象雌雄成虫的方法[J]. 浙江农林大学学报, 2013, 30(2): 309-312. doi: 10.11833/j.issn.2095-0756.2013.02.025

引用本文:

CHEN Chong, YU Qianqian, LIU Zhenkai, SUN Yaowu, CAO Chuanjian, BAO Shan, WEN Junbao. Rapid differentiation between male and female adults of Eucryptorrhynchus chinensis[J]. Journal of Zhejiang A&F University, 2013, 30(2): 309-312. doi: 10.11833/j.issn.2095-0756.2013.02.025

Citation:

CHEN Chong, YU Qianqian, LIU Zhenkai, SUN Yaowu, CAO Chuanjian, BAO Shan, WEN Junbao. Rapid differentiation between male and female adults of Eucryptorrhynchus chinensis[J]. Journal of Zhejiang A&F University, 2013, 30(2): 309-312. doi: 10.11833/j.issn.2095-0756.2013.02.025

快速区分沟眶象雌雄成虫的方法

doi: 10.11833/j.issn.2095-0756.2013.02.025

1.
北京林业大学省部共建森林培育与保护教育部重点实验室，北京 100083;
2.
灵武市林木检疫站，宁夏灵武 751400;
3.
宁夏森林病虫害防治检疫总站，宁夏银川 750004

详细信息

通信作者: 温俊宝

Rapid differentiation between male and female adults of Eucryptorrhynchus chinensis

1.
Key Laboratory for Silviculture and Conservation of Ministry of Education，Beijing Forestry University，Beijing 100083;
2.
Forest Quarantine Station of Lingwu，Lingwu 751400，Ningxia，China;
3.
Forest Diseases and Insect Pests Control and Quarantine Station of Ningxia Hui Autonomous Region，Yinchuan 750004，Ningxia，China

More Information

Corresponding author: WEN Junbao

摘要: 沟眶象Eucryptorrhynchus chinensis的雌雄成虫在外部形态上非常相似，目前还没有一种简单而快速的区分方法。通过对大量雌雄成虫外部形态进行比较，找出了可以仅靠肉眼区分的识别特征，即：雌雄间在成虫后胸腹板上有明显区别，雄虫腹中线贯穿后胸腹板，而雌虫的后胸腹板没有被贯穿，中断位置两侧后胸腹板凸起。经验证，该方法可以作为区分沟眶象雌雄虫的简易方法。与雌成虫相比沟眶象成虫雄虫腹部背板最后一节分为2节，因此，腹部背板雌虫为7节、雄虫为8节也是区分沟眶象雌雄成虫的稳定特征。另外，对臭椿沟眶象E. brandti的雌雄成虫的区分方法也做了相应的补充。图2表1参5
- 森林保护学 /
- 沟眶象 /
- 雌雄区分 /
- 肉眼区分 /
- 形态学
Abstract: The male and female adults of Eucryptorrhynchus chinensis （a weevil pest） have a very similar external morphology. Thus，to determine external morphological characteristics that could distinguish between the sexes，observation of a large number of E. chinensis adults was conducted. A random sample of 2 389 adults in Linhe town，Lingwu，Ningxia，then observation with the naked eye and anatomical lens. Results showed that the sexes differed in the shape of their metathoracic sternite where the medioventral line stretched over the metathoracic sternite in the male，but opposite in the female adult and both sides of interrupted position were convex. Also，compared with the female，male adults of E. chinensis had the last section of their abdominal webs divided into two sections for a total of 7 in the male and 8 in the female. Since the sexual dimorphism of the metathoracic sternite was readily seen with the naked eye，male and female adults of E. chinensis could be effectively determined.［Ch，2 fig. 1 tab. 5 ref.］
- forest protection /
- Eucryptorrhynchus chinensis /
- sexing /
- distinguish with the naked eye /
- morphology

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快速区分沟眶象雌雄成虫的方法

doi: 10.11833/j.issn.2095-0756.2013.02.025

1. 北京林业大学省部共建森林培育与保护教育部重点实验室，北京 100083;

2. 灵武市林木检疫站，宁夏灵武 751400;

3. 宁夏森林病虫害防治检疫总站，宁夏银川 750004

通信作者: 温俊宝

收稿日期: 2012-03-27
修回日期: 2012-05-18
刊出日期: 2013-04-20

关键词:

摘要: 沟眶象Eucryptorrhynchus chinensis的雌雄成虫在外部形态上非常相似，目前还没有一种简单而快速的区分方法。通过对大量雌雄成虫外部形态进行比较，找出了可以仅靠肉眼区分的识别特征，即：雌雄间在成虫后胸腹板上有明显区别，雄虫腹中线贯穿后胸腹板，而雌虫的后胸腹板没有被贯穿，中断位置两侧后胸腹板凸起。经验证，该方法可以作为区分沟眶象雌雄虫的简易方法。与雌成虫相比沟眶象成虫雄虫腹部背板最后一节分为2节，因此，腹部背板雌虫为7节、雄虫为8节也是区分沟眶象雌雄成虫的稳定特征。另外，对臭椿沟眶象E. brandti的雌雄成虫的区分方法也做了相应的补充。图2表1参5

English Abstract

Rapid differentiation between male and female adults of Eucryptorrhynchus chinensis

1. Key Laboratory for Silviculture and Conservation of Ministry of Education，Beijing Forestry University，Beijing 100083;

2. Forest Quarantine Station of Lingwu，Lingwu 751400，Ningxia，China;

3. Forest Diseases and Insect Pests Control and Quarantine Station of Ningxia Hui Autonomous Region，Yinchuan 750004，Ningxia，China

Corresponding author: WEN Junbao

Received Date: 2012-03-27
Rev Recd Date: 2012-05-18
Publish Date: 2013-04-20

Keywords:

Abstract: The male and female adults of Eucryptorrhynchus chinensis （a weevil pest） have a very similar external morphology. Thus，to determine external morphological characteristics that could distinguish between the sexes，observation of a large number of E. chinensis adults was conducted. A random sample of 2 389 adults in Linhe town，Lingwu，Ningxia，then observation with the naked eye and anatomical lens. Results showed that the sexes differed in the shape of their metathoracic sternite where the medioventral line stretched over the metathoracic sternite in the male，but opposite in the female adult and both sides of interrupted position were convex. Also，compared with the female，male adults of E. chinensis had the last section of their abdominal webs divided into two sections for a total of 7 in the male and 8 in the female. Since the sexual dimorphism of the metathoracic sternite was readily seen with the naked eye，male and female adults of E. chinensis could be effectively determined.［Ch，2 fig. 1 tab. 5 ref.］

引用本文: