【目的】 为了明确麦长管蚜Sitobion avenae（Fabricius）在时间和空间上的迁飞活动规律以及南北地区间的虫源关系。【方法】 我们采用了一种新型的监测小型迁飞性害虫的工具——吸虫塔（Suction trap），对麦长管蚜的迁飞活动进行自动、实时监测。【结果】 监测及分析结果表明，在小麦返青到成熟期间，吸虫塔中麦长管蚜的数量有多个高峰，但是有两个相对集中的时间段，即主要的迁入时期和迁出时期。在廊坊地区，每年4月末至5月初（抽穗到扬花期）迁入廊坊，5月下旬至6月初（小麦乳熟期）大量迁出廊坊。麦长管蚜的迁飞（或飞翔）活动具有昼夜节律，清晨、上午和傍晚是麦长管蚜迁飞活动的主要时间段，而在夜间其飞翔活动显著减少。利用HYSPLIT模型对麦长管蚜迁飞轨迹的分析结果显示，纬度低的地区蚜量高峰期早于纬度高的地区，其蚜量高峰日期具有明显的南北衔接特点。【结论】吸虫塔的监测证明了麦长管蚜在我国东部地区由南向北迁飞。

         [Objectives]  To improve understanding of the spatio-temporal migration patterns of Sitobion avenae (Fabricius). [Methods]  A new suction trap was used to monitor S. avenae in conjunction with real-time weather monitoring. [Results]  The results show that there were several migration pulses of S. avenae from the wheat greening to maturing stage. These seem to concentrate to two time periods, one corresponding to immigration and the other to emigration. For example, in the Langfang area, winged S. avenae moved to this area from late April to early May (the wheat heading to flowering stage) every year and move out in late may to early June (the wheat milky stage). Early morning and dusk are the major times of migration of winged S. avenae, and migratory activity is significantly reduced during the night. The result of analysis of migratory trajectories using the HYSPLIT model showed that peak periods of abundance of winged aphids occurred much earlier in low than at high latitudes, and that peak periods in different places coincided in time. [Conclusion]  Suction trap monitoring results show that S. avenae migrate from south to north in the eastern part ofChina.