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中文摘要：
在南靖和溪亚热带雨林中分布有数种大蚊，美刺亮大蚊（Limonia （Euglochina）sp.）是雨林中唯一观察到在圆蛛科蜘蛛网上栖息的大蚊．因此我们对美刺亮大蚊和圆蛛科蜘蛛在蜘蛛网上的同现行为进行了观察研究．借助扫描电镜技术，在比较了其他大蚊、蜘蛛等节肢动物前跗节超微结构的基础上，对美刺亮大蚊栖息于蜘蛛两行为学的形态学机制进行了初步解析．文中也对美刺亮大蚊的聚集行为与雨林温湿度的关系进行了记录．
英文摘要：
There are several species of crane flies in Nanjing subtropical rainforest, whereas, the Limonia （Euglochina） sp. is the only one we observed resting on the spider web （primary thread favor）. So, observation on co-occurrence behavior of Limonia （Euglodaina） sp. with the Araneidae spiders in the same orb-web was conducted. Ultrastructure of the pretarsus of several species of crane flies and one spider species of Araneidae were scanned by SEM technology, in addition, the mechanism of hanging on the orb-web thread by Limonia （Euglochina） sp. was discussed in this paper by comparing the tarsal external morphology of Limonia （Euglochina） sp. with the others. We also recorded the aggregation regulation of Limonia （Euglochina） sp. in the working field in the rainforest.
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