一种新的产虫茶昆虫——紫斑谷螟的生物学特性研究
Biological characteristics of Pyralis farinalis Linnaeus—A newly reported insect producing the “insecttea”
尚小丽1,杨茂发1**,黄丽1,苟光前2
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作者单位：1贵州大学昆虫研究所 贵州山地农业病虫害重点实验室贵阳550025；2贵州大学生命科学学院贵阳550025
中文关键词：虫茶，紫斑谷螟，生物学特性，赤水，贵州
英文关键词： insecttea, Pyralis farinalis, biological characteristics, Chishui, Guizhou
中文摘要： 本文首次对贵州省赤水地区新发现的一种主要产虫茶昆虫紫斑谷螟Pyralis farinalis Linnaeus进行了报道。结合野外调查和室内饲养的方法，对紫斑谷螟的形态特征和生物学特性进行了较为系统的研究。结果表明，紫斑谷螟在赤水地区一年发生3代，以老熟幼虫在吐丝连缀茶叶形成的隧道内越冬。其中以越冬代历时最长，共经历约200 d，越冬代成虫翌年4月下旬开始羽化；第1代历时最短，从5月上旬至7月上旬，仅经历约60 d；第2代历时较长，从7月中旬到9月下旬，共经过约90 d。
英文摘要： This article provides the first description of Pyralis farinalis Linnaeus, an insect which produces insecttea in the Chishui area of Guizhou Province. The morphological and biological characteristics of this species were investigated both in the field and laboratory. The results show that P. farinalis has 3 generations per year in the Chishui area, and the old larva overwinter in a tunnel made of tea leaves and silk. The overwintering generation was the longest, about 200 days, the adults of which emerged in late April. The first generation was the shortest, about 60 days, from early May to early July. The second generation was longer than the first, about 90 days from mid-July to late September.