目的研究上海市杨浦区3种金蝇的形态特征和季节消长规律。方法使用诱蝇笼法,在本区内不同场所捕捉成蝇,进行分类计数。结果捕获到3种金蝇19135只,大头金蝇18076只(94.47%),绯颜裸金蝇919只(4.80%),肥躯金蝇140只(0.73%)。3种金蝇的首现月份依次为4、7、5月。结论3种金蝇外部形态有明显区别,大头金蝇是本区优势种类,其他2种蝇类所占比例较少。 Objective To study the morphological characteristics and seasonal fluctuation patterns of three goldfly in Yangpu District of Shanghai. Methods The fly trap method was used to capture adult flies in different places in this area for classification and counting. Results A total of 19135 goldfly was captured, including 18076 goldflies (94.47%), 919 (4.80%) and 140 (0.73%) of them. The first three months of goldflies were 4, 7 and 5 months in turn. Conclusions The external morphology of the three gold flies is obviously different. The gold flies are the predominant species in this area, while the other two flies occupy less proportion.