| 纪文香，陈祯，李红梅，娄灯吉，刘宪斌，代晰慧，施皓译,2022,九香虫形态及生物学特征研究[J].环境昆虫学报,44(1):194-203 |
| 九香虫形态及生物学特征研究 |
| Morphological and biological characteristics of Coridius chinensis (Hemiptera: Pentatomidae) |
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| DOI： |
| 中文关键词: 九香虫 形态 寄主范围 生活史 习性 |
| 英文关键词:Coridius chinensis morphology host plant life history behavioral habit |
| 基金项目:云南省地方本科高校基础研究联合专项面上项目（2017FH001-036）；省级大学生创新训练项目（202011390034） |
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| 中文摘要: |
| 通过建立网室近自然实验种群，结合野生个体观察记述了云南玉溪九香虫Coridius chinensis (Dallas)种群的各虫期形态特征、在云南玉溪红塔区的年生活史、寄主范围、取食偏好、成虫及若虫的行为习性，为该虫的保育和规模化养殖提供依据。结果显示，九香虫卵有绿色和粉色两种生态型，若虫有5个龄期；在云南玉溪红塔区1年仅发生1代，仅以成虫态越冬；红塔区九香虫野生个体主要以佛手瓜和南瓜等葫芦科植物为食；取食偏好选择试验表明该虫最喜取食葫芦，冬瓜和南瓜次之；雌雄成虫可多次交配多次产卵，单雌单次平均产卵量为16.3±6.0粒。研究表明，云南玉溪红塔区的九香虫种群为典型的一化性昆虫，休眠期可达8个月；该虫食性较广，可取食多科植物，但以葫芦科瓜类为主；羽化成虫每年9月中旬至10月上旬陆续从佛手瓜、南瓜等寄主植物上迁至枯树皮下、柴堆等隐蔽场所越冬，翌年4月下旬陆续解除休眠，迁至佛手瓜、南瓜等作物上取食繁殖。 |
| 英文摘要: |
| To clarify the morphological characteristics, life history, host range, feeding habits, and behavioral features, of immature stages and adults of Coridius chinensis (Dallas), collected from Hongta district of Yuxi city, Yunnan Province. Morphological characteristics and life-cycle stages were observed by rearing eggs, nymphs and adults in a semi-natural environment. Life history data were collected and behavioral habits of nymphs and adults were observed in both the semi-natural net house and the field. Simultaneous choice experiments to determine nymph and adult food preferences were conducted to identify likely host plants. There are two colored eggs (green morphs and pink morphs), and five different instar nymphs of C. chinensis. The species is one generation a year and overwintering as adults in Hongta district, Yuxi city. Sechium edule and Cucurbita moschat (Cucurbitaceae) were confirmed to be the main host plants of the local C. chinensis population in the field. The results of food preference experiments showed the true bugs have a preference for Lagenaria siceraria, follow by Benincasa hispida and C. moschat. The species is characterized with multiple mating and oviposition. The average fecundity was 16.3±6.0 eggs per female at a time. Rigid univoltine is found in the local C. chinensis population, and the overwintering duration sustained 8 months in the local. The species is a polyphagous insect, and has a preference for cucurbitaceous plant. New eclosional adults of C. chinensis usually migrate to hibernaculum such as dry barks, and woodpiles etc. from mid-September to early October annually, and the dormancy of the local C. chinensis population will be successively eliminated until last April the next year, thereafter the post-overwintering adults of C. chinensis migrated to S. edule and C. moschat feeding and breeding. |
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