飞行阻隔器主要由一个垂直悬到地面的拦截屏（塑料网、PVC塑料玻璃或树脂玻璃）和一个昆虫标本接收器组成，用于拦截和收集飞行中的昆虫，是一种有效的昆虫采集装置。近年来在国外昆虫采集中已被广泛应用，但在国内昆虫采集中尚未见正式报道。通过英国同行推荐、资料查阅和实际使用，本文作者摸索出一整套符合中国国情的组装及使用方法，并结合在秦岭山脉实际采集效果，统计了飞行阻隔器对昆虫纲膜翅目、双翅目、鞘翅目、鳞翅目和毛翅目等主要类群的采集效果。结果表明飞行阻隔器对于膜翅目、双翅目和鞘翅目均有非常好的采集效果，每个飞行阻隔器每天平均采集昆虫总量为332头，包括膜翅目126头、鞘翅目101头、双翅目87头、鳞翅目10头、毛翅目3头及其他昆虫5头。另外，本文比较了同一时间段、同一地点飞行阻隔器和马氏网的采集效果，飞行阻隔器采虫效果优于马氏网、在采集类群上两种方法各有侧重点，飞行阻隔器对膜翅目采集效果最好，其次为鞘翅目；马氏网以双翅目采集效果最好，其次为膜翅目。

 Flight interception traps (FITs) composed of a trapping screen (plastic mesh, a transparent PVC plastic sheet or plexiglass) and an insect collecting container, are effective for trapping flying insects. Such traps have recently begun to play an important role in insect collecting in foreign countries. However, there has yet been no published report on their use and effectiveness in China. In this paper, based on the recommendations of collaborators from the U.K., the relevant literature and our practical experience of FIT equipment in the field, we provide a complete set of instructions for assembling and using FITs, and evaluate their effectiveness for sampling the major insect groups, including the Hymenoptera, Diptera, Coleoptera, Lepidoptera and Trichoptera. The results indicate that FITs performed reasonably well in trapping insects from the above orders. An average of 332 individual insects were captured daily by each FIT, including 126 Hymenoptera, 101 Coleoptera, 87 Diptera, 10 Lepidoptera, 3 Trichoptera and 5 other insect taxa. The correlation between various factors and the effectiveness of FITs was analyzed, and suggestions for future directions for their application and improvement provided. In addition, we compared the effectiveness of FIT and Malaise Traps (MTs) deployed at the same time and location. The results indicate that FIT are superior to MT’s and that these two kinds of traps tend to collect different proportions of different insect taxa; FIT tended to capture more Hymenoptera, then Coleoptera, whereas MTs captured more Diptera followed then Hymenoptera.